Installing and setting up Eclipse with Sun's Java

[hod139]

This howto explains how to install Eclipse and Sun's Java on Ubuntu 8.04 (Hardy Heron), and how to make Eclipse actually use Sun's Java solving the "Eclipse is horribly slow" problem caused by bug 45347 (https://launchpad.net/distros/ubuntu/+source/eclipse/+bug/45347).

The entire install process consists simply of installing the following 2 meta packages: eclipse and sun-java6-jdk. Note, you can optionally choose to use the openjdk-6-jdk package instead of Sun's package, which is the open-source jdk for ubuntu.

sudo apt-get install eclipse sun-java6-jdk
This will install the required packages, however, Eclipse will run very slowly since it will be using GNU's java, not Sun's (or optionally openjdk). To make Sun's java the default on the system, use the update-java-alternatives command:

sudo update-java-alternatives -s java-6-sunNext, edit the JVM configuration file
sudo -b gedit /etc/jvm and add the following to the top of the file
/usr/lib/jvm/java-6-sunThere is a bug right now were Eclipse ignores Ubuntu's java-common settings and uses its own (bug 45347 (https://launchpad.net/distros/ubuntu/+source/eclipse/+bug/45347)). To work around the bug, you need to edit Eclipse's java_home file
sudo -b gedit /etc/eclipse/java_home and add
/usr/lib/jvm/java-6-sun to the top of the file.

Lastly, if you have lots of memory you may want to increase the heap size (warning: If you make the heap size too large then parts of eclipse will continuously swap in and out.).
The settings can be altered by editing the eclipse.ini file.

sudo -b gedit /usr/lib/eclipse/eclipse.iniThe argument Xms refers to the minimum heap size and Xmx refers to the maximum heap size.
For more on tuning the Eclipse JVM heap size, you can refer to this IBM article (http://www7b.boulder.ibm.com/wsdd/library/techarticles/0204_searle/searle.html).

That's it.

Edit 1: Make mention of the /usr/share/eclipse/eclipse.ini file for setting heap size (thanks belial6)
Edit 2: Added javah to update-alternatives list (thanks anarhistu)
Edit 3: Clarified discussion on Eclipse bug (thanks anarhistu for pointing out this was unclear)
Edit 4: Use update-java-alternatives instead of update-alternatives. (thanks korny)
Edit 5: Updated java to version 6
Edit 6: Updated eclipse ini path for feisty users (thanks biTaZ and ksenos)

[belial6]

For me Eclipse was very slow because the default heap size was relatively small. So I increased the heap.

Since I have 1 gig of ram I put max heap to 256 MB and default to 100MB.

Here is what I changed in /usr/bin/eclipse script (that's where my eclipse startup script is):
Before there weren't any vm arguments
VMARGS=""

Changed it to this
VMARGS="-Xms100m -Xmx256m"


And now eclipse is running much faster. Before I had problems working with just 5 editor windows open. Now I can easily open 20 of them 8)

[anarhistu]

Ok, I wanted to post this, but I will just complete your post:

Lastly, Eclipse for some reason ignores Ubuntu's JVM configuration file and uses its own (bug?). You need to edit eclipes's java_home file
Code:

sudo -b gedit /etc/eclipse/java_home



Well, this is because of the Eclipse init script.Let's look at the script a little (/usr/bin/eclipse) :

.....
# If the user has specified a custom JAVA, we check it for validity.
# JAVA defines the virtual machine that Eclipse will use to launch itself.
if [ -n "${JAVA_HOME}" ]; then
echo "using specified vm: ${JAVA_HOME}"

.....

# If the user has not set JAVA_HOME, cycle through our list of compatible VM's
# and pick the first one that exists.
if [ -z "${JAVA_HOME}" -a ! -n "${JAVACMD}" ]; then
echo "searching for compatible vm..."
javahomelist=`cat /etc/eclipse/java_home | grep -v '^#' | grep -v '^$' | while read line ; do echo -n $line ; echo -n ":" ; done`
OFS="$IFS"
IFS=":"
for JAVA_HOME in $javahomelist ; do
echo -n " testing ${JAVA_HOME}..."
....


Ok, so what we see here is this: Eclipse searches for the Environment variable named JAVA_HOME which you should have set.If it does not find it, it will go through the vm-s in its list /etc/eclipse/java_home.

So, we try to see if the script works:


~$ export JAVA_HOME=/usr/lib/jvm/java-1.5.0-sun
$ eclipse
using specified vm: /usr/lib/jvm/java-1.5.0-sun
........


That is, the script works just fine if you set the env variable.

For a permanent setting add it to ~/.bashrc or ~/.bash_profile or whatever you use for your profile (I think .bashrc is default)

PS: At configuring the update alternatives.You can just do the old way and simbolic link applications in /usr/bin to the correct applications.Like : ln -sf /usr/lib/jvm/java-1.5.0-sun/bin/java java

I don't know if it is correct or not, but this is how I did it.
And I also have a javah in my /usr/bin maybe you should list that too in your list.

Greets,
Matei

[hod139]

For me Eclipse was very slow because the default heap size was relatively small. So I increased the heap.

Since I have 1 gig of ram I put max heap to 256 MB and default to 100MB.

Here is what I changed in /usr/bin/eclipse script (that's where my eclipse startup script is):
Before there weren't any vm arguments
VMARGS=""

Changed it to this
VMARGS="-Xms100m -Xmx256m"


And now eclipse is running much faster. Before I had problems working with just 5 editor windows open. Now I can easily open 20 of them 8)

Correct me if I'm wrong, but doesn't eclipse read
/usr/share/eclipse/eclipse.ini
for JVM settings, and the default in dapper is

-vmargs
-Xms40m
-Xmx256m


Thanks for the suggestion though of making people aware of this file. I will edit my original post.

[elemental666]

Just wanted to confirm this worked great in xubuntu dapper. Eclipse opened much faster than ever, dunno if xfce or the Xms Xmx settings were the kickers, but I'm happy!

Thanks

[korny]

I have an example of a script that sets JAVA_HOME from the update-alternatives controlled path at http://www.ubuntuforums.org/showthread.php?p=1296484#post1296484

- possibly putting this script in your .bashrc might be more reliable than manually setting JAVA_HOME? Be warned, I haven't really played around with it much.

Also, generally it's better to call update-java-alternatives than update-alternatives - it calls update-alternatives for each of the java programs, not just java and javah.

When I've had a chance to test this properly, I might write it up as a howto...

[hod139]

I have an example of a script that sets JAVA_HOME from the update-alternatives controlled path at http://www.ubuntuforums.org/showthread.php?p=1296484#post1296484

- possibly putting this script in your .bashrc might be more reliable than manually setting JAVA_HOME? Be warned, I haven't really played around with it much.

Also, generally it's better to call update-java-alternatives than update-alternatives - it calls update-alternatives for each of the java programs, not just java and javah.

When I've had a chance to test this properly, I might write it up as a howto...
Thanks for the feedback. I changed my post to use update-java-alternatives. I'm not going to add your script to my main post since there already exists
/usr/share/java-common/jvm-find.sh
and I'm trying to make a minimal set of changes with the smallest amount of side effects to deal with the known ubuntu bugs. That way upgrades shouldn't be an issue. Hopefully Ubuntu will have the java-common and java-alternatives working better by 6.10.

[korny]

fair enough - my only problem with that script is that it falls back to /etc/jvm, which is a parallel and alternative way of selecting JVMs to the update-alternatives way.
If people reliable edit /etc/jvm at the same time as running update-alternatives, this will work fine. I just wish these things could be set in one place!

/etc/jvm is actually slightly nicer in some ways, as it allows a user to override the system-wide default - but it will only work with ubuntu or debian packaged apps; command-line calls to java, or manually installed apps, will typically look for JAVA_HOME, or rely on the "java" command in the path.

[hod139]

I just wish these things could be set in one place!

I agree 100%

[Pander]

Very good howto! I have been waiting for this for a while.

It should be one big bug report for update-java-alternatives.

[kpkeerthi]

Thank you for this guide.

[gwilma]

I'd like to echo the thanks of others for this - it worked a treat, and I can now have a go with eclipse :D

[zeroepoch]

Thanks for the tip. I use eclipse DAILY and this just saved me a crap load of time indexing C/C++ files.

[jd_knight]

I was facing problem while debugging my code, while eclipse used gcj. It looked like it was failing to connect to JVM in debugging mode. So the code just ran without hitting any breakpoint, and then the JVM threw an error.

Now, after changing my default jre to sun-java, all is well :)

[spur]

"sudo update-java-alternatives -s java-1.5.0-sun" gives me a mesage that the java-alternatives' does not exist !
I have read this thread and it had not helped!

[hod139]

"sudo update-java-alternatives -s java-1.5.0-sun" gives me a mesage that the java-alternatives' does not exist !


How did you install Java, did you use the package available in Dapper, or did you install from Sun's website? Are you running Dapper or an earlier version of Ubuntu? What is the exact error message you get?

[spur]

Thanks hod139.:D
I'm running dapper (Kubuntu 6.06) I tried both downloading and the packages with adept and got my browser working with java ok. I received an error message at last attempt telling me to set JAVA_HOME and I could not figure out how to do that.
It is a little immaterial now as I have downloaded JBuilder foundation and its working fine. Java web start did most of it for me. Then I set the vmmax myself as it was wrong and stopping Jbilder from starting.
Any way now I have my Java IDE and I'm Happy. =D> :biggrin:

[blue_chili]

Woohoo! It works. And it runs faster than with Tiger. Thanks :D

[dxxvi]

Could you tell me the reason why you don't remove GNU Java from your machine and use Sun's Java instead? By doing this way, there's no need to tell the machine which Java it should use. I always go to Application | Add/Remove ..., search for `java' and remove all java-related packages.

Why do you want to use Eclipse from Ubuntu, not Eclipse from eclipse.org? I'm pretty sure that the Ubuntu's Eclipse is not in version 3.2. Frankly, I haven't used any special feature in the version 3.2 yet, but when it comes to open source, I always want the latest :)

I haven't tried use to Sun's Java (which is downloaded from Sun website) in Ubuntu (I did it in Fedora Core 5 before) and it's great because I can always use the latest Java update (e.g. the latest update for Java 5 is 8, while it's only 6 with Ubuntu Java).

Now I'm using IntelliJ IDEA in Ubuntu (about $500 for a commercial license). I have Ubuntu (free) running in vmware player (free). Make a copy of that Ubuntu to save it. Install IntelliJ IDEA in Ubuntu and use it for 30 days, then get rid of this Ubuntu and install IDEA on the Ubuntu copy I saved before. That way, I can use IDEA for free for a quite long time. Is it legal?

[spur]

Doesn't sound legal to me as you are working around a trial period (seems like that is what you are doing)
I have just installed net beans from sun and its working well. I installed the package deal and it fixed my eclipse as well. So why go to all that trouble to do something that could get you in deap?

[hod139]

Could you tell me the reason why you don't remove GNU Java from your machine and use Sun's Java instead?

Why should I have to remove GNU Java to use Sun's? Should I remove firefox to use opera, remove vim for emacs, etc...


By doing this way, there's no need to tell the machine which Java it should use. I always go to Application | Add/Remove ..., search for `java' and remove all java-related packages.
Again, why should I have to remove one thing to use another? Also, what if another package I want to use depends on some gnu java package? And this doesn't solve the problem of telling the machine which Java it should use (unless you are using a repository version of Java that is). You still have to manually set up classpaths and library paths.

Why do you want to use Eclipse from Ubuntu, not Eclipse from eclipse.org? I'm pretty sure that the Ubuntu's Eclipse is not in version 3.2. Frankly, I haven't used any special feature in the version 3.2 yet, but when it comes to open source, I always want the latest :)
This comes down to personal taste. I too used to always want to run bleading edge, but now that I'm in grad school I don't have the time to do this anymore. Now I just want everything to work with minimal setup, so I can be most productive. Ubuntu developers spend lots of time managing the packages and handling dependecies, security fixes, etc so I don't have to. If that means using a slightly out of date package, then so be it.


I haven't tried use to Sun's Java (which is downloaded from Sun website) in Ubuntu (I did it in Fedora Core 5 before) and it's great because I can always use the latest Java update (e.g. the latest update for Java 5 is 8, while it's only 6 with Ubuntu Java).

Now I'm using IntelliJ IDEA in Ubuntu (about $500 for a commercial license). I have Ubuntu (free) running in vmware player (free). Make a copy of that Ubuntu to save it. Install IntelliJ IDEA in Ubuntu and use it for 30 days, then get rid of this Ubuntu and install IDEA on the Ubuntu copy I saved before. That way, I can use IDEA for free for a quite long time. Is it legal? I'm not sure on the legality, but it is definitely not the intentions of IntelliJ.

The point of this howto is to help people install and setup the repo versions of Sun's java and Eclipse. I don't want to see this howto get locked or thrown in the backyard for violating any terms, so if you wish to keep talking about this feel free to private message me, but please leave future comments relevant to the initial discussion. Thanks.

[korny]

Could you tell me the reason why you don't remove GNU Java from your machine and use Sun's Java instead? By doing this way, there's no need to tell the machine which Java it should use. I always go to Application | Add/Remove ..., search for `java' and remove all java-related packages.


The trouble is, if you remove GNU Java you break *any* package that depends on it. Sure, for things like Eclipse I want to install it myself and get the latest version (and also make things like plugin management much simpler) - but I don't want to eliminate the option of installing *anything* from the Ubuntu apt repositories that needs java. It's far less effort to install most things from synaptic - or at least it would be, if not for the confusing different ways different apps look for which Java to use.

I haven't tried use to Sun's Java (which is downloaded from Sun website) in Ubuntu (I did it in Fedora Core 5 before) and it's great because I can always use the latest Java update (e.g. the latest update for Java 5 is 8, while it's only 6 with Ubuntu Java).


I prefer in this case to install the ubuntu-checked version of Java as the default - this gives me a greater chance stability for ubuntu-repository apps; there is no guarantee that Sun haven't changed something between version 6 and 8 that breaks a third part app. If you stick with the ubuntu version, at least you have a chance that someone else has checked the compatibility for you.

And then I install a later version (*if* I need the latest features) as well, and use it for cases where I need the latest and greatest. (For example, I'm running Java 6 beta, with the latest JEdit, so I get lcd antialiased fonts :)


Now I'm using IntelliJ IDEA in Ubuntu (about $500 for a commercial license). I have Ubuntu (free) running in vmware player (free). Make a copy of that Ubuntu to save it. Install IntelliJ IDEA in Ubuntu and use it for 30 days, then get rid of this Ubuntu and install IDEA on the Ubuntu copy I saved before. That way, I can use IDEA for free for a quite long time. Is it legal?

sorry, no, that's almost certainly illegal. I'd be willing to bet the IntelliJ licences specifically say something like "one trial license per user". Why not stick to Eclipse? It's at least 90% as good as IntelliJ, better in some areas I hear, and completely free and legal.

- Korny

[Cable]

I can not get this to work for the life of me. I did

sudo update-java-alternatives -s java-1.5.0-sun

and the terminal output is

Using `/usr/lib/jvm/java-1.5.0-sun/bin/appletviewer' to provide `appletviewer'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/apt' to provide `apt'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/extcheck' to provide `extcheck'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/HtmlConverter' to provide `HtmlConverter'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/idlj' to provide `idlj'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/jarsigner' to provide `jarsigner'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/jar' to provide `jar'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/javac' to provide `javac'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/javadoc' to provide `javadoc'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/javah' to provide `javah'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/javap' to provide `javap'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/java-rmi.cgi' to provide `java-rmi.cgi'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/jconsole' to provide `jconsole'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/jdb' to provide `jdb'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/jinfo' to provide `jinfo'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/jmap' to provide `jmap'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/jps' to provide `jps'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/jsadebugd' to provide `jsadebugd'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/jstack' to provide `jstack'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/jstatd' to provide `jstatd'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/jstat' to provide `jstat'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/native2ascii' to provide `native2ascii'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/rmic' to provide `rmic'.
Using `/usr/lib/jvm/java-1.5.0-sun/bin/serialver' to provide `serialver'.
Using `/usr/lib/jvm/java-1.5.0-sun/jre/bin/ControlPanel' to provide `ControlPanel'.
Using `/usr/lib/jvm/java-1.5.0-sun/jre/bin/java' to provide `java'.
Using `/usr/lib/jvm/java-1.5.0-sun/jre/bin/java_vm' to provide `java_vm'.
Using `/usr/lib/jvm/java-1.5.0-sun/jre/bin/javaws' to provide `javaws'.
Using `/usr/lib/jvm/java-1.5.0-sun/jre/bin/keytool' to provide `keytool'.
Using `/usr/lib/jvm/java-1.5.0-sun/jre/bin/pack200' to provide `pack200'.
Using `/usr/lib/jvm/java-1.5.0-sun/jre/bin/policytool' to provide `policytool'.
Using `/usr/lib/jvm/java-1.5.0-sun/jre/bin/rmid' to provide `rmid'.
Using `/usr/lib/jvm/java-1.5.0-sun/jre/bin/rmiregistry' to provide `rmiregistry'.
Using `/usr/lib/jvm/java-1.5.0-sun/jre/bin/unpack200' to provide `unpack200'.
Using `/usr/lib/jvm/java-1.5.0-sun/jre/plugin/i386/ns7/libjavaplugin_oji.so' to provide `firefox-javaplugin.so'.
Using `/usr/lib/jvm/java-1.5.0-sun/jre/plugin/i386/ns7/libjavaplugin_oji.so' to provide `mozilla-javaplugin.so'.
Using `/usr/lib/jvm/java-1.5.0-sun/jre/plugin/i386/ns7/libjavaplugin_oji.so' to provide `mozilla-snapshot-javaplugin.so'.

Which looks okay to me. Here is my JVM file.

# This file defines the default system JVM search order. Each
# JVM should list their JAVA_HOME compatible directory in this file.
# The default system JVM is the first one available from top to
# bottom.

/usr/lib/jvm/java-1.5.0-sun
/usr/lib/jvm/java-gcj
/usr/lib/jvm/ia32-java-1.5.0-sun
/usr

Here is my javahome file.

# This file determines the search order the Eclipse Platform uses to find a
# compatible JAVA_HOME. This setting may be overridden on a per-user basis by
# altering the JAVA_HOME setting in ~/.eclipse/eclipserc.

/usr/lib/jvm/java-1.5.0-sun
/usr/lib/jvm/java-gcj
/usr/lib/kaffe/pthreads
/usr/lib/j2se/1.5
/usr/lib/j2se/1.4
/usr/lib/j2sdk1.5-ibm
/usr/lib/j2sdk1.4-ibm
/usr/lib/j2sdk1.5-sun
/usr/lib/j2sdk1.4-sun

I believe I've done everything stated in this howto, and Eclipse is still not using Sun JDK. Specifically, it's not recognizing the Scanner class. Help please??

[hod139]

I believe I've done everything stated in this howto, and Eclipse is still not using Sun JDK. Specifically, it's not recognizing the Scanner class. Help please??

From your output it looks like you did everything correctly, Sun's java 5 is is installed, it is the default, and eclipse is configured to launch using Sun's JVM.

To me, it sounds like your problem is either:
1. Eclipse doesn't have Sun's JDK in its list of installed JREs
2. Your Eclipse compliance level is set to 1.4.

To check 1, start eclpse, go to Window->Preferences->Installed JREs
and verify Sun's JRE is installed. If not, click the add button and add it.

For 2, go to Window->Preferences->Compiler, and make sure compliance level is set to 5.0, not 1.4. In addition, each project can overrride these default settings, so veryfy the compliance level in the project as well: Right-click the project->Properties->Java Compliance

I hope this helps. Also, can you tell me what was wrong so I can update the howto accordingly.

[dxxvi]

Why should I have to remove GNU Java to use Sun's? Should I remove firefox to use opera, remove vim for emacs, etc...

... but now that I'm in grad school I don't have the time to do this anymore Aha, you're in grad school now :) Congratulations! I hope that you'll continue with the Ph.D (the thing I cannot do). I'm glad that I finished my grad school nearly 2 years ago, have been working for about 1 and a half years since then and not in the don't-have-the-time-to-do-this-anymore situation :)

I know bleeding-edge technologies are painful but I love them, I want to learn them so that when they're mature and any of our clients wants to use it, we're ready.

And to those who choosing GNU Java over Sun Java, could you guys give me some advices (if you're been-there-done-that) in these situations (I haven't tried any of them, so if you did, I really want to hear your opinions):

- will GNU Java work with J2EE (including JSF and JPA), Struts, Spring, Acegi Security, Hibernate, JUnit, TestNG, XDoclet (those are the things I'm using or intend to use in the near future)?

And to those using Eclipse (I should ask this question in Eclipse forum), I am in this problem:

- I have a build.xml file in which I use a property, for example named lib.dir. This property is declared in some other xml files (I mean more than 1 xml file, for example it is declared in windows.properties.xml and unix.properties.xml files). In build.xml, I check to see if the OS is windows or Unix. If windows, I load the windows.properties.xml file, and load the unix.properties.xml file otherwise. Suppose that there are only 2 OS's windows & unix. In either way, lib.dir is declared. In eclipse, when I tell it that build.xml is the Ant build file, Eclipse tells me that lib.dir is used in build.xml but isn't declared, but it works fine with IntelliJ IDEA.

That's not the reason I choose IDEA. I like free software so I used Eclipse before, but my company is having IDEA and all existing projects use the kind of build.xml file I mentioned above. Another reason is that Eclipse uses SWT, not Swing, and I heard that SWT doesn't work well with MacOS (I haven't tried it although I used to have an iBook G4 but I sold it away when I heard that Apple might uses Intel chips).

[duality]

I had to export java to an enviroment variable, and then run eclipse with sudo, and choose java 5.0 when making the project.
Then it worked

[FLEO]

I agree with you guys.

I changed Eclipse's JRE for Sun's Java and it's mutch faster. Like in windows.

Tks,

FLEO

[sha_man]

my eclipse running latest Java is still running SLOWLY and takes a LOT of CPU :mad:

it takes seconds for auto-completion, and needs 100% cpu for almost all tasks...

What can I do? Is this normal? I have amd643200+ and 1024mb ram... this not happen...

[ufalcon]

I had the same symptoms (ridiculously slow auto-complete was the worst >_<) - on an AMD64 Ubuntu Edgy 64 system. Just make sure you follow every step of the tutorial...


Honestly, how painful does this have to be??? Maybe now that Sun is open-sourcing (I don't know much about this though) Java I won't ever have to go through 10 steps just to stop using some crap JVM like gcj.

Great tutorial though - thanks!

[hod139]

I had the same symptoms (ridiculously slow auto-complete was the worst >_<) - on an AMD64 Ubuntu Edgy 64 system. Just make sure you follow every step of the tutorial...


Honestly, how painful does this have to be??? Maybe now that Sun is open-sourcing (I don't know much about this though) Java I won't ever have to go through 10 steps just to stop using some crap JVM like gcj.

Great tutorial though - thanks!
I'm glad someone on edgy and with and AMD64 machine was able to test this. Thanks for replying.

I hope with sun open-sourcing Java this howto becomes obsolete, it is far too painful right now for no good reason.

Thanks for the compliment!

[alinuxfan]

I am getting an error and I can't even start eclipse. I searched the web and I couldn't find much.
I guess not many people are having the problem or not many people are running 64bit OS's to program

Any ideas?

Thanks

Edit: I am using eclipse from the repo and sun java

!SESSION 2007-02-12 18:36:18.651 -----------------------------------------------
eclipse.buildId=M20060921-0945
java.version=1.5.0_08
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Command-line arguments: -os linux -ws gtk -arch x86_64

!ENTRY org.eclipse.osgi 2 1 2007-02-12 18:36:21.616
!MESSAGE NLS missing message: initializer_error in: org.eclipse.core.internal.runtime.messages

!ENTRY org.eclipse.osgi 2 1 2007-02-12 18:36:21.623
!MESSAGE NLS missing message: fileInitializer_fileNotFound in: org.eclipse.core.internal.runtime.messages

!ENTRY org.eclipse.osgi 2 1 2007-02-12 18:36:21.624
!MESSAGE NLS missing message: fileInitializer_IOError in: org.eclipse.core.internal.runtime.messages

!ENTRY org.eclipse.osgi 2 1 2007-02-12 18:36:21.624
!MESSAGE NLS missing message: fileInitializer_missingFileName in: org.eclipse.core.internal.runtime.messages

!ENTRY org.eclipse.osgi 4 0 2007-02-12 18:36:21.907
!MESSAGE Application error
!STACK 1
java.lang.UnsatisfiedLinkError: memmove
at org.eclipse.swt.internal.gtk.OS.memmove(Native Method)
at org.eclipse.swt.internal.Converter.wcsToMbcs(Conve rter.java:67)
at org.eclipse.swt.internal.Converter.wcsToMbcs(Conve rter.java:54)
at org.eclipse.swt.widgets.Display.<clinit>(Display.java:126)
at org.eclipse.ui.internal.Workbench.createDisplay(Wo rkbench.java:433)
at org.eclipse.ui.PlatformUI.createDisplay(PlatformUI .java:161)
at org.eclipse.ui.internal.ide.IDEApplication.createD isplay(IDEApplication.java:122)
at org.eclipse.ui.internal.ide.IDEApplication.run(IDE Application.java:75)
at org.eclipse.core.internal.runtime.PlatformActivato r$1.run(PlatformActivator.java:78)
at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.runApplication(EclipseAppLauncher.java: 92)
at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.start(EclipseAppLauncher.java:68)
at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:177)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.eclipse.core.launcher.Main.invokeFramework(Mai n.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java: 280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)

[Bruce Leeds]

Hi,
I am new here and hope to find some help regarding to the installation of the java-sun-package.

I did everything that was written in the manual in the first post. But now when I open Eclipse this error message is arising in a window:

JVM terminated. Exit code=1
/usr/lib/jvm/java-1.5.0-sun/bin/java
-Djava.library.path=/usr/lib/jni
-Dgnu.gcj.precompiled.db.path=/var/lib/gcj-4.1/classmap.db
-Dgnu.gcj.runtime.VMClassLoader.library_control=nev er
-Dosgi.locking=none
-jar /usr/share/eclipse/startup.jar
-os linux
-ws gtk
-arch x86
-launcher /usr/lib/eclipse/eclipse
-name Eclipse
-showsplash 600
-exitdata bd8000
-install /usr/share/eclipse
-vm /usr/lib/jvm/java-1.5.0-sun/bin/java
-vmargs
-Djava.library.path=/usr/lib/jni
-Dgnu.gcj.precompiled.db.path=/var/lib/gcj-4.1/classmap.db
-Dgnu.gcj.runtime.VMClassLoader.library_control=nev er
-Dosgi.locking=none
-jar /usr/share/eclipse/startup.jar


When I write /usr/lib/jvm/java-1.5.0-sun as a comment in /etc/eclipse/java_home then Eclipse starts, therefore obviously Eclipse is not able to read that file correct.

In the third post in this thread anarhistu mentions the file /usr/bin/eclipse.
I don't understand what he means with the following:


Ok, so what we see here is this: Eclipse searches for the Environment variable named JAVA_HOME which you should have set.If it does not find it, it will go through the vm-s in its list /etc/eclipse/java_home.

So, we try to see if the script works:


Code:
~$ export JAVA_HOME=/usr/lib/jvm/java-1.5.0-sun
$ eclipse
using specified vm: /usr/lib/jvm/java-1.5.0-sun
........
That is, the script works just fine if you set the env variable.

For a permanent setting add it to ~/.bashrc or ~/.bash_profile or whatever you use for your profile (I think .bashrc is default)

PS: At configuring the update alternatives.You can just do the old way and simbolic link applications in /usr/bin to the correct applications.Like :
Code:
ln -sf /usr/lib/jvm/java-1.5.0-sun/bin/java java
I don't know if it is correct or not, but this is how I did it.
And I also have a javah in my /usr/bin maybe you should list that too in your list.


1) What exactly shall I do? Shall I set a bash-script somewhere? Which? Where?
2) What can I do to get my Eclipse running with the sun-Java?
3) How can I see whether it worked in the end? Is there something where I can see that in Eclipse?

Greetings
Bruce

I am running
Kubuntu 6.06
KDE 3.5.5
Machine: i686

[hod139]

The fourth line of your error message makes me think that you have not set up eclipse correctly since it is trying to use gcj.

What's scary to me is that you are getting an error if you put

/usr/lib/jvm/java-1.5.0-sun at the top of
/etc/eclipse/java_home

Maybe something went wrong with the java install, does the directory

/usr/lib/jvm/java-1.5.0-sun
exist on your machine?

[Bruce Leeds]

Yes it exists.
My file is:


# This file determines the search order the Eclipse Platform uses to find a
# compatible JAVA_HOME. This setting may be overridden on a per-user basis by
# altering the JAVA_HOME setting in ~/.eclipse/eclipserc.

/usr/lib/jvm/java-1.5.0-sun
/usr/lib/jvm/java-gcj
/usr/lib/kaffe/pthreads
/usr/lib/j2se/1.5
/usr/lib/j2se/1.4
/usr/lib/j2sdk1.5-ibm
/usr/lib/j2sdk1.4-ibm
/usr/lib/j2sdk1.5-sun
/usr/lib/j2sdk1.4-sun


Any idea?

[Bruce Leeds]

I got it!

I needed to install as well the package:
"sun-java5-jdk"

Either you forgot to write that in your tutorial and should ad it,
or in my case the installation of
"sun-java5-bin"
didn't install
"sun-java5-jdk"
too and it should have done it.

For all German speaker there outside:
http://wiki.ubuntuusers.de/Java
helped me.
It is an excellent wiki if you allow me to advertise a bit - it is German anyway.
Ah, I just saw, it's the same "brand" as ubuntuforums - only the German part of it, so I'm advertising this forum anyway. ;-)

There I read that there is a Java 6.
Can I download and install it the same way as I did with Java 5?
Would you recommend it?

I wasn't able to find it with Adept.
Do I have to set free some repositories?

I know, that I can see which JRE is installed under Windows--Preferences--Java--Installed JRE.
But where can I see which jdk-Java is used by Eclipse?

Greetings
Bruce

[hod139]

I got it!

I needed to install as well the package:
"sun-java5-jdk"

Either you forgot to write that in your tutorial and should ad it

The second line of my first post says: "the entire install process consists of installing the following 2 meta packages: eclipse sun-java5-jdk" (emphasis added).


There I read that there is a Java 6.
Can I download and install it the same way as I did with Java 5?
Would you recommend it?

I wasn't able to find it with Adept.
Do I have to set free some repositories?
You can install it the same way, changing java 5 to 6 where appropriate. The package name is sun-java6-jdk and is available in the backports repository. As for recommending it, sure go ahead. I may even update the first post.


I know, that I can see which JRE is installed under Windows--Preferences--Java--Installed JRE.
But where can I see which jdk-Java is used by Eclipse?
If you start eclipse from the command line it should tell you. Alternatively, edit

/etc/eclipse/java_home
That file is the search order eclipse uses to find JREs.

[geovino]

How do install the java file without installing Eclipse? I don't want the program, but because I install it once I keep getting error messages about having to install this java file. I just want to install it but I have gotten any instructions. How do I install a j2sdk-1_4_2_13-linux-i586.bin ?

[hod139]

How do I install a j2sdk-1_4_2_13-linux-i586.bin ?
The point of this howto is how to install Java (and Eclipse) using the repositories, not using Sun's website. To my knowledge, I do not know how to install such an old version of java from the repositories. I would suggest you don't install such an old version at all. Add the multiverse repository and install either sun-java5-jdk or sun-java6-jdk. If you really want to install from Sun's website, see this guide (http://phossal.com/thread?view=702216931).

[andypaxo]

Thanks so much for the advice!
It would have taken hours to figure out why Eclipse wasn't doing what it should, but this sorted it out.

[Nikron]

I'd suggest to Fiesty Fawn users that they download eclipse from eclipse.org, because eclipse from the repos, while up to date makes you install 200 megs worth of GCJ

[AndyMan1]

Many Kudos and internet cookies. After MUCH frustration, this is the thing that got me all fixed up!

[biTaZ]

This is a saver,

Man, I'm working on Eclipse for my Job on both Windows and Linux boxes and I couldn't understand why the Ubuntu version was lagging behind Gentoo and Windows!

Big Thanks for the howto.
If you'll ask me, this eclipse *feature* forcing gcj is purely a bug. The version on my Gentoo box DOES take the global setting into account.

Also, the location of the eclipse.ini was different on my system:
$ locate eclipse.ini
/usr/lib/eclipse/eclipse.ini

[mintcoffee]

Many Kudos and internet cookies. After MUCH frustration, this is the thing that got me all fixed up!

Bah, Keep your cookies to yourself!!! We get enough of them surfing the web :grin:

[fintan.mcgee]

Thank You. I was just about to ditch eclipse (with CDT) as a C++ IDE as many features had serious issues (particularly the content assist and C++ Indexer) . This looks like it has sorted it out.

[ksenos]

Thanks for this guide. It seems it really worked. I have to say that the location of eclipse.ini file was also different on my system.

/usr/lib/eclipse/eclipse.ini

Does anyone know if there is going to be a chance to get eclipse without the gcj dependency?

[hod139]

Thanks for this guide. It seems it really worked. I have to say that the location of eclipse.ini file was also different on my system.
/usr/lib/eclipse/eclipse.ini
Thanks, I guess the location in was changed in feisty. I will update the guide to include this new location.


Does anyone know if there is going to be a chance to get eclipse without the gcj dependency?You can follow this bug (https://bugs.launchpad.net/ubuntu/+source/libcommons-dbcp-java/+bug/81876). Hopefully they will have it straightened out by the next release.

[nabla]

why not just get eclipse from eclipse.org, extract to /opt/ , make a menu entry to launch it and it's done. and no gcj dependency crap.

[hod139]

why not just get eclipse from eclipse.org, extract to /opt/ , make a menu entry to launch it and it's done. and no gcj dependency crap.
That is another approach, and one that you are free to use. However, the point of this tutorial is how to use the repository version of eclipse, since many people prefer to use the repository instead of installing from the developers website.

[jdunn]

I'm a java newbie and I'm having alot of trouble with Eclipse. I downloaded Eclipse from the repositories and I followed your guide. My "Hello World" program has no syntax errors but when I try to compile, I get this in the console:

Activation.main: warning: sun.rmi.activation.execPolicy system
property unspecified and no ExecPermissions/ExecOptionPermissions
granted; subsequent activation attempts may fail due to unsuccessful
ExecPermission/ExecOptionPermission permission checks. For
documentation on how to configure rmid security, refer to:

http://java.sun.com/j2se/1.4/docs/tooldocs/solaris/rmid.html
http://java.sun.com/j2se/1.4/docs/tooldocs/win32/rmid.html


Your guide mentions nothing about setting file permissions. I don't want to run this as root and I have no idea where to set permissions.

**Update**
NM. I got it working somehow. I'm not sure what I did to fix it. :KS

[jdunn]

Okay. Now that I have Eclipse working, I noticed another problem: I can't print from Eclipse but I can print from any other Linux Applications including Firefox, OpenOffice, etc. In Eclipse, File->Print is "greyed out" and I need to print out source code and results for my course. My printing is done on a remote printer attached to my Windows XP computer via SAMBA.

[korny]

Eclipse has only very recently started to support printing on Linux - it wasn't supported in Eclipse 3.2.2 which is the version available in Feisty. (Actually when I started this post I assumed it wasn't supported at all, glad to see it is *finally* available in 3.3 ...)

So if you want printing, either use an external program or get Eclipse 3.3 M1 or later.
See http://www.eclipse.org/swt/faq.php#printOnGTK

Maybe a quick solution would be to get a different Java editor just for printing - try JEdit, it's a nice general-purpose editor written in Java, it should print code quite well. http://jedit.org

[jdunn]

Thanks Korny. That's good to know. I'm guessing 3.22 is the current stable version. If I go to the download section of the eclipse web sight, it says the current version for Linux is 3.22

Version 3.3 is a Release Candidate. I'll wait until its official.

[keneida]

somehow it is all kind of wrong.
I found out that /usr/bin/eclipse has hardcoded javavm options to use gcj

-vmargs -Djava.library.path=/usr/lib/jni \
-Dgnu.gcj.precompiled.db.path=/var/lib/gcj-4.1/classmap.db \
-Dgnu.gcj.runtime.VMClassLoader.library_control=nev er \
-Dosgi.locking=none ${VMARGS}
so i commented it out. From the debug it looks that it finally uses proper sun jvm.
However when i run a java program i get:

Exception in thread "main" java.lang.NoClassDefFoundError: .....
at gnu.java.lang.MainThread.run(libgcj.so.70)
Caused by: java.lang.ClassNotFoundException: info.fingo.asist.transis.jms.Sender not found in gnu.gcj.runtime.SystemClassLoader{......}
at java.net.URLClassLoader.findClass(libgcj.so.70)
at gnu.gcj.runtime.SystemClassLoader.findClass(libgcj .so.70)
at java.lang.ClassLoader.loadClass(libgcj.so.70)
at java.lang.ClassLoader.loadClass(libgcj.so.70)
at gnu.java.lang.MainThread.run(libgcj.so.70)


i do not know what to think about it

[afasias]

I am having a very hard time using eclipse on ubuntu feisty.
I have installed eclipse and sun's jdk on two different computers.
On the first computer (the one I use at work) I have installed both eclipse and sun's jdk 1.6 simply by extracting all files in folders and call it from there.
On the other computer (the one I use at home) I have installed both eclipse and sun's jdk 1.6 using the ubuntu packages (eclipse and java-6-sun).
I took care of making eclipse using the sun's jdk instead of gcj. I can say that eclipse works pretty fast most of the time, but there are some other issues.
code assistance is so slow that makes it unusable. The first time the code assistant is enabled it takes 5-6 minutes (it's not a typo: minutes) for the assistance window to appear. the eclipse windows gets grayed (not responding). after that first time, code assistance comes up pretty fast (like 1 sec or less). While eclipse is not responding, I see high levels of cpu usage by java and no disc activity.
Also, another delay occurs when trying to select a suggestion. if I have an error in the code, and red mark appears on the left, i click on it to see what eclipse suggests me to do. instantly eclipse is getting in the not-responding-mode and I have to wait for about 2 mins to get the suggestions window. And it does not only do this on the first time, it does this *every* time I click on the red mark.
Any logical explanation of why all these problems occur? Any solutions? Please help..

[tarek]

Thanks! Works just fine on Feisty.

[questpro]

working fine,

Thank you.

[rvdavid]

Works flawlessly on Xubuntu Gutsy Gibbon
Eclipse 3.2.2 (from repository)
Java 6 Sun

I was getting choppy performance when I first installed. The culprit was eclipse still using GCJ even after I had installed and updated alternatives to use sun java 6.

I had to update java_home in /usr/lib/eclipse/ for it to be effectively using sun suns jvm.



Regards,

[labreche]

hi,
i run into problem while using ubunt eclipse package under feisty . I've followed the thread(installed java6 from backport , ...) , but eclipse does not want to start, hanging up with message saying me to read the log bellow :




!SESSION 2007-08-14 19:11:04.580 -----------------------------------------------
eclipse.buildId=M20070212-1330
java.version=1.6.0
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=fr_FR
Command-line arguments: -os linux -ws gtk -arch x86

!ENTRY org.eclipse.osgi 2 1 2007-08-14 19:11:05.725
!MESSAGE NLS missing message: initializer_error in: org.eclipse.core.internal.runtime.messages

!ENTRY org.eclipse.osgi 2 1 2007-08-14 19:11:05.725
!MESSAGE NLS missing message: fileInitializer_fileNotFound in: org.eclipse.core.internal.runtime.messages

!ENTRY org.eclipse.osgi 2 1 2007-08-14 19:11:05.725
!MESSAGE NLS missing message: fileInitializer_IOError in: org.eclipse.core.internal.runtime.messages

!ENTRY org.eclipse.osgi 2 1 2007-08-14 19:11:05.726
!MESSAGE NLS missing message: fileInitializer_missingFileName in: org.eclipse.core.internal.runtime.messages

!ENTRY org.eclipse.osgi 4 0 2007-08-14 19:11:05.744
!MESSAGE An error occurred while automatically activating bundle org.eclipse.ui.workbench (106).
!STACK 0
org.osgi.framework.BundleException: The activator org.eclipse.ui.internal.WorkbenchPlugin for bundle org.eclipse.ui.workbench is invalid
at org.eclipse.osgi.framework.internal.core.AbstractB undle.loadBundleActivator(AbstractBundle.java:141)
at org.eclipse.osgi.framework.internal.core.BundleCon textImpl.start(BundleContextImpl.java:962)
at org.eclipse.osgi.framework.internal.core.BundleHos t.startWorker(BundleHost.java:317)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.start(AbstractBundle.java:256)
at org.eclipse.osgi.framework.util.SecureAction.start (SecureAction.java:342)
at org.eclipse.core.runtime.internal.adaptor.EclipseL azyStarter.preFindLocalClass(EclipseLazyStarter.ja va:88)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClass(ClasspathManager.java:412)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.findLocalClass(DefaultClassLoader.java:189)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findLocalClass(BundleLoader.java:334)
at org.eclipse.osgi.framework.internal.core.SingleSou rcePackage.loadClass(SingleSourcePackage.java:37)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:383)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:347)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 51)
at java.lang.ClassLoader.loadClassInternal(ClassLoade r.java:319)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java :620)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.defineClass(DefaultClassLoader.java:161)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.defineClass(ClasspathManager.java:501)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findClassImpl(ClasspathManager.java:471)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClassImpl(ClasspathManager.java:430)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClass(ClasspathManager.java:413)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.findLocalClass(DefaultClassLoader.java:189)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findLocalClass(BundleLoader.java:334)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:386)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:347)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 51)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.loadClass(BundleLoader.java:278)
at org.eclipse.osgi.framework.internal.core.BundleHos t.loadClass(BundleHost.java:227)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.loadBundleActivator(AbstractBundle.java:134)
at org.eclipse.osgi.framework.internal.core.BundleCon textImpl.start(BundleContextImpl.java:962)
at org.eclipse.osgi.framework.internal.core.BundleHos t.startWorker(BundleHost.java:317)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.start(AbstractBundle.java:256)
at org.eclipse.osgi.framework.util.SecureAction.start (SecureAction.java:342)
at org.eclipse.core.runtime.internal.adaptor.EclipseL azyStarter.preFindLocalClass(EclipseLazyStarter.ja va:88)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClass(ClasspathManager.java:412)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.findLocalClass(DefaultClassLoader.java:189)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findLocalClass(BundleLoader.java:334)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:386)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:347)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 51)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.loadClass(BundleLoader.java:278)
at org.eclipse.osgi.framework.internal.core.BundleHos t.loadClass(BundleHost.java:227)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.loadClass(AbstractBundle.java:1245)
at org.eclipse.core.internal.registry.osgi.RegistrySt rategyOSGI.createExecutableExtension(RegistryStrat egyOSGI.java:147)
at org.eclipse.core.internal.registry.ExtensionRegist ry.createExecutableExtension(ExtensionRegistry.jav a:759)
at org.eclipse.core.internal.registry.ConfigurationEl ement.createExecutableExtension(ConfigurationEleme nt.java:243)
at org.eclipse.core.internal.registry.ConfigurationEl ementHandle.createExecutableExtension(Configuratio nElementHandle.java:51)
at org.eclipse.core.internal.runtime.PlatformActivato r$1.run(PlatformActivator.java:74)
at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.runApplication(EclipseAppLauncher.java: 92)
at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.start(EclipseAppLauncher.java:68)
at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:177)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.core.launcher.Main.invokeFramework(Mai n.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java: 280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)
Caused by: java.lang.NoClassDefFoundError: org/eclipse/swt/SWTError
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Cla ss.java:2389)
at java.lang.Class.getConstructor0(Class.java:2699)
at java.lang.Class.newInstance0(Class.java:326)
at java.lang.Class.newInstance(Class.java:308)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.loadBundleActivator(AbstractBundle.java:136)
... 62 more
Root exception:
java.lang.NoClassDefFoundError: org/eclipse/swt/SWTError
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Cla ss.java:2389)
at java.lang.Class.getConstructor0(Class.java:2699)
at java.lang.Class.newInstance0(Class.java:326)
at java.lang.Class.newInstance(Class.java:308)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.loadBundleActivator(AbstractBundle.java:136)
at org.eclipse.osgi.framework.internal.core.BundleCon textImpl.start(BundleContextImpl.java:962)
at org.eclipse.osgi.framework.internal.core.BundleHos t.startWorker(BundleHost.java:317)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.start(AbstractBundle.java:256)
at org.eclipse.osgi.framework.util.SecureAction.start (SecureAction.java:342)
at org.eclipse.core.runtime.internal.adaptor.EclipseL azyStarter.preFindLocalClass(EclipseLazyStarter.ja va:88)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClass(ClasspathManager.java:412)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.findLocalClass(DefaultClassLoader.java:189)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findLocalClass(BundleLoader.java:334)
at org.eclipse.osgi.framework.internal.core.SingleSou rcePackage.loadClass(SingleSourcePackage.java:37)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:383)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:347)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 51)
at java.lang.ClassLoader.loadClassInternal(ClassLoade r.java:319)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java :620)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.defineClass(DefaultClassLoader.java:161)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.defineClass(ClasspathManager.java:501)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findClassImpl(ClasspathManager.java:471)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClassImpl(ClasspathManager.java:430)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClass(ClasspathManager.java:413)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.findLocalClass(DefaultClassLoader.java:189)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findLocalClass(BundleLoader.java:334)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:386)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:347)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 51)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.loadClass(BundleLoader.java:278)
at org.eclipse.osgi.framework.internal.core.BundleHos t.loadClass(BundleHost.java:227)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.loadBundleActivator(AbstractBundle.java:134)
at org.eclipse.osgi.framework.internal.core.BundleCon textImpl.start(BundleContextImpl.java:962)
at org.eclipse.osgi.framework.internal.core.BundleHos t.startWorker(BundleHost.java:317)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.start(AbstractBundle.java:256)
at org.eclipse.osgi.framework.util.SecureAction.start (SecureAction.java:342)
at org.eclipse.core.runtime.internal.adaptor.EclipseL azyStarter.preFindLocalClass(EclipseLazyStarter.ja va:88)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClass(ClasspathManager.java:412)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.findLocalClass(DefaultClassLoader.java:189)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findLocalClass(BundleLoader.java:334)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:386)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:347)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 51)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.loadClass(BundleLoader.java:278)
at org.eclipse.osgi.framework.internal.core.BundleHos t.loadClass(BundleHost.java:227)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.loadClass(AbstractBundle.java:1245)
at org.eclipse.core.internal.registry.osgi.RegistrySt rategyOSGI.createExecutableExtension(RegistryStrat egyOSGI.java:147)
at org.eclipse.core.internal.registry.ExtensionRegist ry.createExecutableExtension(ExtensionRegistry.jav a:759)
at org.eclipse.core.internal.registry.ConfigurationEl ement.createExecutableExtension(ConfigurationEleme nt.java:243)
at org.eclipse.core.internal.registry.ConfigurationEl ementHandle.createExecutableExtension(Configuratio nElementHandle.java:51)
at org.eclipse.core.internal.runtime.PlatformActivato r$1.run(PlatformActivator.java:74)
at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.runApplication(EclipseAppLauncher.java: 92)
at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.start(EclipseAppLauncher.java:68)
at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:177)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.core.launcher.Main.invokeFramework(Mai n.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java: 280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)

!ENTRY org.eclipse.osgi 4 0 2007-08-14 19:11:05.758
!MESSAGE An error occurred while automatically activating bundle org.eclipse.ui.ide (91).
!STACK 0
org.osgi.framework.BundleException: The activator org.eclipse.ui.internal.ide.IDEWorkbenchPlugin for bundle org.eclipse.ui.ide is invalid
at org.eclipse.osgi.framework.internal.core.AbstractB undle.loadBundleActivator(AbstractBundle.java:141)
at org.eclipse.osgi.framework.internal.core.BundleCon textImpl.start(BundleContextImpl.java:962)
at org.eclipse.osgi.framework.internal.core.BundleHos t.startWorker(BundleHost.java:317)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.start(AbstractBundle.java:256)
at org.eclipse.osgi.framework.util.SecureAction.start (SecureAction.java:342)
at org.eclipse.core.runtime.internal.adaptor.EclipseL azyStarter.preFindLocalClass(EclipseLazyStarter.ja va:88)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClass(ClasspathManager.java:412)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.findLocalClass(DefaultClassLoader.java:189)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findLocalClass(BundleLoader.java:334)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:386)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:347)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 51)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.loadClass(BundleLoader.java:278)
at org.eclipse.osgi.framework.internal.core.BundleHos t.loadClass(BundleHost.java:227)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.loadClass(AbstractBundle.java:1245)
at org.eclipse.core.internal.registry.osgi.RegistrySt rategyOSGI.createExecutableExtension(RegistryStrat egyOSGI.java:147)
at org.eclipse.core.internal.registry.ExtensionRegist ry.createExecutableExtension(ExtensionRegistry.jav a:759)
at org.eclipse.core.internal.registry.ConfigurationEl ement.createExecutableExtension(ConfigurationEleme nt.java:243)
at org.eclipse.core.internal.registry.ConfigurationEl ementHandle.createExecutableExtension(Configuratio nElementHandle.java:51)
at org.eclipse.core.internal.runtime.PlatformActivato r$1.run(PlatformActivator.java:74)
at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.runApplication(EclipseAppLauncher.java: 92)
at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.start(EclipseAppLauncher.java:68)
at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:177)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.core.launcher.Main.invokeFramework(Mai n.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java: 280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)
Caused by: java.lang.NoClassDefFoundError: org/eclipse/ui/plugin/AbstractUIPlugin
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java :620)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.defineClass(DefaultClassLoader.java:161)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.defineClass(ClasspathManager.java:501)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findClassImpl(ClasspathManager.java:471)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClassImpl(ClasspathManager.java:430)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClass(ClasspathManager.java:413)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.findLocalClass(DefaultClassLoader.java:189)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findLocalClass(BundleLoader.java:334)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:386)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:347)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 51)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.loadClass(BundleLoader.java:278)
at org.eclipse.osgi.framework.internal.core.BundleHos t.loadClass(BundleHost.java:227)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.loadBundleActivator(AbstractBundle.java:134)
... 32 more
Root exception:
java.lang.NoClassDefFoundError: org/eclipse/ui/plugin/AbstractUIPlugin
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java :620)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.defineClass(DefaultClassLoader.java:161)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.defineClass(ClasspathManager.java:501)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findClassImpl(ClasspathManager.java:471)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClassImpl(ClasspathManager.java:430)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClass(ClasspathManager.java:413)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.findLocalClass(DefaultClassLoader.java:189)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findLocalClass(BundleLoader.java:334)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:386)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:347)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 51)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.loadClass(BundleLoader.java:278)
at org.eclipse.osgi.framework.internal.core.BundleHos t.loadClass(BundleHost.java:227)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.loadBundleActivator(AbstractBundle.java:134)
at org.eclipse.osgi.framework.internal.core.BundleCon textImpl.start(BundleContextImpl.java:962)
at org.eclipse.osgi.framework.internal.core.BundleHos t.startWorker(BundleHost.java:317)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.start(AbstractBundle.java:256)
at org.eclipse.osgi.framework.util.SecureAction.start (SecureAction.java:342)
at org.eclipse.core.runtime.internal.adaptor.EclipseL azyStarter.preFindLocalClass(EclipseLazyStarter.ja va:88)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClass(ClasspathManager.java:412)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.findLocalClass(DefaultClassLoader.java:189)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findLocalClass(BundleLoader.java:334)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:386)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:347)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 51)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.loadClass(BundleLoader.java:278)
at org.eclipse.osgi.framework.internal.core.BundleHos t.loadClass(BundleHost.java:227)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.loadClass(AbstractBundle.java:1245)
at org.eclipse.core.internal.registry.osgi.RegistrySt rategyOSGI.createExecutableExtension(RegistryStrat egyOSGI.java:147)
at org.eclipse.core.internal.registry.ExtensionRegist ry.createExecutableExtension(ExtensionRegistry.jav a:759)
at org.eclipse.core.internal.registry.ConfigurationEl ement.createExecutableExtension(ConfigurationEleme nt.java:243)
at org.eclipse.core.internal.registry.ConfigurationEl ementHandle.createExecutableExtension(Configuratio nElementHandle.java:51)
at org.eclipse.core.internal.runtime.PlatformActivato r$1.run(PlatformActivator.java:74)
at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.runApplication(EclipseAppLauncher.java: 92)
at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.start(EclipseAppLauncher.java:68)
at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:177)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.core.launcher.Main.invokeFramework(Mai n.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java: 280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)

!ENTRY org.eclipse.osgi 4 0 2007-08-14 19:11:05.764
!MESSAGE Application error
!STACK 1
org.eclipse.core.runtime.CoreException: Plug-in org.eclipse.ui.ide was unable to load class org.eclipse.ui.internal.ide.IDEApplication.
at org.eclipse.core.internal.registry.osgi.RegistrySt rategyOSGI.throwException(RegistryStrategyOSGI.jav a:165)
at org.eclipse.core.internal.registry.osgi.RegistrySt rategyOSGI.createExecutableExtension(RegistryStrat egyOSGI.java:149)
at org.eclipse.core.internal.registry.ExtensionRegist ry.createExecutableExtension(ExtensionRegistry.jav a:759)
at org.eclipse.core.internal.registry.ConfigurationEl ement.createExecutableExtension(ConfigurationEleme nt.java:243)
at org.eclipse.core.internal.registry.ConfigurationEl ementHandle.createExecutableExtension(Configuratio nElementHandle.java:51)
at org.eclipse.core.internal.runtime.PlatformActivato r$1.run(PlatformActivator.java:74)
at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.runApplication(EclipseAppLauncher.java: 92)
at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.start(EclipseAppLauncher.java:68)
at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:177)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.core.launcher.Main.invokeFramework(Mai n.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java: 280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)
org.eclipse.core.runtime.CoreException[1]: java.lang.ClassNotFoundException: org.eclipse.ui.internal.ide.IDEApplication
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:402)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.findClass(BundleLoader.java:347)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 51)
at org.eclipse.osgi.framework.internal.core.BundleLoa der.loadClass(BundleLoader.java:278)
at org.eclipse.osgi.framework.internal.core.BundleHos t.loadClass(BundleHost.java:227)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.loadClass(AbstractBundle.java:1245)
at org.eclipse.core.internal.registry.osgi.RegistrySt rategyOSGI.createExecutableExtension(RegistryStrat egyOSGI.java:147)
at org.eclipse.core.internal.registry.ExtensionRegist ry.createExecutableExtension(ExtensionRegistry.jav a:759)
at org.eclipse.core.internal.registry.ConfigurationEl ement.createExecutableExtension(ConfigurationEleme nt.java:243)
at org.eclipse.core.internal.registry.ConfigurationEl ementHandle.createExecutableExtension(Configuratio nElementHandle.java:51)
at org.eclipse.core.internal.runtime.PlatformActivato r$1.run(PlatformActivator.java:74)
at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.runApplication(EclipseAppLauncher.java: 92)
at org.eclipse.core.runtime.internal.adaptor.EclipseA ppLauncher.start(EclipseAppLauncher.java:68)
at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.ru n(EclipseStarter.java:177)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.core.launcher.Main.invokeFramework(Mai n.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java: 280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)



i don't know where is the first error.
Any help would be apprecied

[Lazarenko]

Great! Thank you very much for this FAQ! It is extremely useful!!

[Freaky#Funga]

I've followed all instructions on 1st page, but my eclipse still says that it cannot connect to VM when debugging. When I try to download from eclipse's pages, this version says that it cannot comunicate with VM socket. I'm totaly desperate about this, because I really need to debug. ANY suggestions are most welcomed!

This is what is written in my output when I run "eclipse -deubug" and grep for "java"

testing /usr/lib/jvm/java-6-sun...found
Start VM: /usr/lib/jvm/java-6-sun/bin/java
-Djava.library.path=/usr/lib/jni
-vm /usr/lib/jvm/java-6-sun/bin/java
-Djava.library.path=/usr/lib/jni

[hod139]

I'm not sure what you are trying to do, but from the man page

-debug [optionsFile]
Puts the platform in debug mode and loads the debug options from the file at the given location, if specified. This file indicates which debug points are available for a plug-in and whether or not they are enabled. If a file location is not given, the platform looks in the directory that eclipse was started from for a file called ".options". Both URLs and file system paths are allowed as file locations.

Note: On Debian, eclipse expects that the following arguments is a path to a option file. You are not allowed to omit this file!

What exactly are you trying to do? Does eclipse work normally, that is did it install properly? If so, then maybe you should consider starting a new thread about this problem since this guide is mainly for installation of eclipse, and I don't really know how to help you more on this problem.

[Freaky#Funga]

I'm not sure what you are trying to do, but from the man page

What exactly are you trying to do? Does eclipse work normally, that is did it install properly? If so, then maybe you should consider starting a new thread about this problem since this guide is mainly for installation of eclipse, and I don't really know how to help you more on this problem.

I've tried to get most verbose output by using -debug option in order to find where is problem with my Java VM. I'm not able to run debug in Eclipse.

What I mean is that the -debug option and debuging in eclipse are 2 different things.


I've already solved my problem this way:
in Eclipse: Window -> Preferences -> Java -> Installed JREs and Search in my /usr/bin and then selecting "Java-6-sun" :KS

[hod139]

Thanks for posting your solution!

[whitespy9]

I checked my install so many times. This step was key for me...
Why Eclipse defaults to the crappiest version of jre to compile is beyond me....
Thank you for the post!

For 2, go to Window->Preferences->Compiler, and make sure compliance level is set to 5.0, not 1.4. In addition, each project can overrride these default settings, so veryfy the compliance level in the project as well: Right-click the project->Properties->Java Compliance

[frajer762]

thx, it works for me!

[agibby5]

I followed the instructions in the first post. However, I'm still having some "issues"

When I click the Eclipse shortcut from the menu, I get the following error: "The custom VM you have chosen is not a valid executable."

However, when I launch Eclipse from the command line, it launches successfully:

andy@c2d6400:~$ eclipse
using specified vm: /usr/lib/jvm/java-6-sun

How can I see what's being executed when I click the menu link? I have a feeling that its not using the proper JVM...

Thanks in advance.

[Shroin]

Thanks a lot for the guide. It provided me with all of the information I was looking for. I'm a new to linux (just replaced vista with it after taking my first quarter of comp classes at college) and I had absolutely no trouble following the instructions.

Cheers,

Shroin

[MockY]

Great How-To.
It solved the issues I had.

Thanks.

[Phkillah]

Espectacular :)

[InfoSec812]

This howto explains how to install Eclipse and Sun's Java on Ubuntu 6.06 LTS (Dapper Drake), and how to make Eclipse actually use Sun's Java solving the "Eclipse is horribly slow" problem. This tutorial should work fine for more recent versions of Ubuntu.
*snip*

VERY HELPFUL, Thanks!!!

[spinlock99]

Wow searching through old posts really works. This is exactly what I was trying to do. Thanks!

Since I have 1 gig of ram I put max heap to 256 MB and default to 100MB.

Here is what I changed in /usr/bin/eclipse script (that's where my eclipse startup script is):
Before there weren't any vm arguments
VMARGS=""

Changed it to this
VMARGS="-Xms100m -Xmx256m"



Just one follow up question: "-Xmx256m" should (tm) set eclipse to use 256 megs of ram. What does "-Xms100m" do?

Thanks again.

[hod139]

Just one follow up question: "-Xmx256m" should (tm) set eclipse to use 256 megs of ram. What does "-Xms100m" do?
Xms sets the minimum heap size, Xmx sets the maximum heap size.

[Znupi]

Hopefully no one will bash me for bumping an old thread.
I downloaded eclipse from eclipse.org and simply unpacked and ran it. It was painfully slow, so I found this thread and installed SUN's Java, but I can't edit the /etc/eclipse/java_home file, since there is no such file. If I go to Window -> Preferences -> Java -> Installed JREs there's only one in the list and it is /usr/lib/jvm/java-6-sun-1.6.0.06 . Does that mean Eclipse is using SUN's Java? If not, what can I do to make it use it? Thanks.

[hod139]

Hopefully no one will bash me for bumping an old thread.
I downloaded eclipse from eclipse.org and simply unpacked and ran it. It was painfully slow, so I found this thread and installed SUN's Java, but I can't edit the /etc/eclipse/java_home file, since there is no such file. If I go to Window -> Preferences -> Java -> Installed JREs there's only one in the list and it is /usr/lib/jvm/java-6-sun-1.6.0.06 . Does that mean Eclipse is using SUN's Java? If not, what can I do to make it use it? Thanks.
The configuration file /etc/eclipse/java_home is where the ubuntu package of eclipse puts it. You will have to find the corresponding file in your install location. To see which JRE eclipse is using, you should be able to (at least it works with the ubuntu package) run eclipse from the command line:

$ /usr/bin/eclipse
searching for compatible vm...
testing /usr/lib/jvm/java-gcj...not found
testing /usr/lib/kaffe/pthreads...not found
testing /usr/lib/jvm/java-6-sun...found

From the output, we see eclipse started with java-6-sun

[Znupi]

The configuration file /etc/eclipse/java_home is where the ubuntu package of eclipse puts it. You will have to find the corresponding file in your install location. To see which JRE eclipse is using, you should be able to (at least it works with the ubuntu package) run eclipse from the command line:

$ /usr/bin/eclipse
searching for compatible vm...
testing /usr/lib/jvm/java-gcj...not found
testing /usr/lib/kaffe/pthreads...not found
testing /usr/lib/jvm/java-6-sun...found

From the output, we see eclipse started with java-6-sun
Thanks for your answer, but it doesn't apply for me. Starting eclipse from the command line outputs nothing to the terminal. And there is no java_home file in my eclipse installation directory.

[Znupi]

Hey, I think I fixed my problem. I reinstalled Ubuntu (I had to anyway) and redownloaded Eclipse (I need the newest version for Android :D). This time I downloaded a smaller one -- I downloaded "Eclipse IDE for Java Developers" instead of "Eclipse IDE for Java EE Developers" which was almost double in size, but I don't think that matters.
When trying to start Eclipse, an error would pop up saying it can't find the Java Virtual Machine. Here's how I changed my eclipse.ini file:
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
-vm
/usr/lib/jvm/java-6-sun/bin
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms40m
-Xmx256m
I basically added the -vm option. This page (http://wiki.eclipse.org/Eclipse.ini) was of great help.
Btw, it seems Eclipse modifies the Eclipse.ini file itself, so here's how it looks after first Eclipse launch:
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
-framework
plugins/org.eclipse.osgi_3.4.2.R34x_v20080826-1230.jar
-vm
/usr/lib/jvm/java-6-sun/bin
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms40m
-Xmx256m
-XX:MaxPermSize=256m
Hope I save someone else's trouble :)

[Znupi]

I think this should be added in the first post? I think lots of users download eclipse from their website, especially now with Android.

[ddilley]

It is almost 4 years since you poted this guide and you are still getting "Thank you"'s for it. Thank you for posting this!
"

[NeuB27]

Thanks for the help on the heaps size changing, it seems to speed things up a bit, but now my other problem.

Whenever I run an application it freezes up. Not eclipse, or the computer, but the application freezes and does not accept any input, not even the exit button or the 'OK' on a simple hello world with JOptionPane. It seems to be some type of setup problem because I can use the system console and everything works well.
Any ideas?

[hod139]

Thanks for the help on the heaps size changing, it seems to speed things up a bit, but now my other problem.

Whenever I run an application it freezes up. Not eclipse, or the computer, but the application freezes and does not accept any input, not even the exit button or the 'OK' on a simple hello world with JOptionPane. It seems to be some type of setup problem because I can use the system console and everything works well.
Any ideas?

If you haven't already, I would suggest posting your question in the programming talk forum.

[NeuB27]

Thanks I will.

[praveenmarkandu]

All I can say is "Thank You"

[pbidwell]

Sorry, I am completely new to Linux.
I do alright up until I have to edit the jvm file under /etc :(. The problem lies in the fact that I have no jvm file under that directory.
Any ideas what I'm doing wrong and what I should do?

[Phkillah]

Sorry, I am completely new to Linux.
I do alright up until I have to edit the jvm file under /etc :(. The problem lies in the fact that I have no jvm file under that directory.
Any ideas what I'm doing wrong and what I should do?

When you're new to Linux it's a headache to configure internal stuff. It's normal, don't stress :)

About your error, are you sure you did ALL the steps above?

Do them again and post the outputs of each.

Cheers :popcorn:

[pbidwell]

When you're new to Linux it's a headache to configure internal stuff. It's normal, don't stress :)

About your error, are you sure you did ALL the steps above?

Do them again and post the outputs of each.

Cheers :popcorn:

Thanks for the reply and encouragement.

Here are my commands and outputs up until I get the problem. Doesn't seem as if there is anything out of the ordinary. (You can see by the outputs that I have tried the steps a million times :)).

Command:
sudo apt-get install eclipse sun-java6-jdkOutput:
Reading package lists... Done
Building dependency tree
Reading state information... Done
eclipse is already the newest version.
sun-java6-jdk is already the newest version.
The following packages were automatically installed and are no longer required:
libfreebob0 libjack0 libmikmod2 classpath-gtkpeer tcl8.5 classpath-common
libsdl-mixer1.2 classpath libsmpeg0
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.Command:
sudo update-java-alternatives -s java-6-sunOutput:
No alternatives for firefox-3.0-javaplugin.so.
No alternatives for firefox-javaplugin.so.
No alternatives for iceape-javaplugin.so.
No alternatives for iceweasel-javaplugin.so.
No alternatives for midbrowser-javaplugin.so.
No alternatives for mozilla-javaplugin.so.
No alternatives for xulrunner-1.9-javaplugin.so.
No alternatives for xulrunner-javaplugin.so.
Using '/usr/lib/jvm/java-6-sun/bin/appletviewer' to provide 'appletviewer'.
Using '/usr/lib/jvm/java-6-sun/bin/apt' to provide 'apt'.
Using '/usr/lib/jvm/java-6-sun/bin/extcheck' to provide 'extcheck'.
Using '/usr/lib/jvm/java-6-sun/bin/HtmlConverter' to provide 'HtmlConverter'.
Using '/usr/lib/jvm/java-6-sun/bin/idlj' to provide 'idlj'.
Using '/usr/lib/jvm/java-6-sun/bin/jarsigner' to provide 'jarsigner'.
Using '/usr/lib/jvm/java-6-sun/bin/jar' to provide 'jar'.
Using '/usr/lib/jvm/java-6-sun/bin/javac' to provide 'javac'.
Using '/usr/lib/jvm/java-6-sun/bin/javadoc' to provide 'javadoc'.
Using '/usr/lib/jvm/java-6-sun/bin/javah' to provide 'javah'.
Using '/usr/lib/jvm/java-6-sun/bin/javap' to provide 'javap'.
Using '/usr/lib/jvm/java-6-sun/bin/java-rmi.cgi' to provide 'java-rmi.cgi'.
Using '/usr/lib/jvm/java-6-sun/bin/jconsole' to provide 'jconsole'.
Using '/usr/lib/jvm/java-6-sun/bin/jdb' to provide 'jdb'.
Using '/usr/lib/jvm/java-6-sun/bin/jhat' to provide 'jhat'.
Using '/usr/lib/jvm/java-6-sun/bin/jinfo' to provide 'jinfo'.
Using '/usr/lib/jvm/java-6-sun/bin/jmap' to provide 'jmap'.
Using '/usr/lib/jvm/java-6-sun/bin/jps' to provide 'jps'.
Using '/usr/lib/jvm/java-6-sun/bin/jrunscript' to provide 'jrunscript'.
Using '/usr/lib/jvm/java-6-sun/bin/jsadebugd' to provide 'jsadebugd'.
Using '/usr/lib/jvm/java-6-sun/bin/jstack' to provide 'jstack'.
Using '/usr/lib/jvm/java-6-sun/bin/jstatd' to provide 'jstatd'.
Using '/usr/lib/jvm/java-6-sun/bin/jstat' to provide 'jstat'.
Using '/usr/lib/jvm/java-6-sun/bin/native2ascii' to provide 'native2ascii'.
Using '/usr/lib/jvm/java-6-sun/bin/rmic' to provide 'rmic'.
Using '/usr/lib/jvm/java-6-sun/bin/schemagen' to provide 'schemagen'.
Using '/usr/lib/jvm/java-6-sun/bin/serialver' to provide 'serialver'.
Using '/usr/lib/jvm/java-6-sun/bin/wsgen' to provide 'wsgen'.
Using '/usr/lib/jvm/java-6-sun/bin/wsimport' to provide 'wsimport'.
Using '/usr/lib/jvm/java-6-sun/bin/xjc' to provide 'xjc'.
Using '/usr/lib/jvm/java-6-sun/jre/bin/ControlPanel' to provide 'ControlPanel'.
Using '/usr/lib/jvm/java-6-sun/jre/bin/java' to provide 'java'.
Using '/usr/lib/jvm/java-6-sun/jre/bin/java_vm' to provide 'java_vm'.
Using '/usr/lib/jvm/java-6-sun/jre/bin/javaws' to provide 'javaws'.
Using '/usr/lib/jvm/java-6-sun/jre/bin/jcontrol' to provide 'jcontrol'.
Using '/usr/lib/jvm/java-6-sun/jre/lib/jexec' to provide 'jexec'.
Using '/usr/lib/jvm/java-6-sun/jre/bin/keytool' to provide 'keytool'.
Using '/usr/lib/jvm/java-6-sun/jre/bin/orbd' to provide 'orbd'.
Using '/usr/lib/jvm/java-6-sun/jre/bin/pack200' to provide 'pack200'.
Using '/usr/lib/jvm/java-6-sun/jre/bin/policytool' to provide 'policytool'.
Using '/usr/lib/jvm/java-6-sun/jre/bin/rmid' to provide 'rmid'.
Using '/usr/lib/jvm/java-6-sun/jre/bin/rmiregistry' to provide 'rmiregistry'.
Using '/usr/lib/jvm/java-6-sun/jre/bin/servertool' to provide 'servertool'.
Using '/usr/lib/jvm/java-6-sun/jre/bin/tnameserv' to provide 'tnameserv'.
Using '/usr/lib/jvm/java-6-sun/jre/bin/unpack200' to provide 'unpack200'.
No alternatives for firefox-javaplugin.so.
No alternatives for iceape-javaplugin.so.
No alternatives for iceweasel-javaplugin.so.
No alternatives for midbrowser-javaplugin.so.
No alternatives for mozilla-javaplugin.so.
No alternatives for xulrunner-1.9-javaplugin.so.
No alternatives for xulrunner-javaplugin.so.
Command:
sudo -b gedit /etc/jvmOutput:
*Opens up a blank gedit page. I checked the /etc directory manually using the File Browser and there is absolutely no /jvm file.


I see this tutorial is for 8.04. I recently upgraded to 8.10. Could that be part of my issue? I assumed the tutorial would work 8.10 also. If this is the problem, is there any other place I can find a similar tutorial that corresponds to my version of Ubuntu?

Thanks

[pbidwell]

Never mind. I have fixed my own problem. I simply downloaded Eclipse from eclipse.org (http://eclipse.org). I have no problems now, and Java runs flawlessly with it. Maybe the Eclipse version in Synaptic is too old?

I appreciate the help!

[cmastrangelo]

Hey i did everything and then when i type this one:
sudo update-java-alternatives -s java-6-sun
It shows on the terminal: "update-alternatives: no update alternatives for ..." 3 times

and then when i type:
sudo -b gedit /etc/jvm
says: "Cannot open display"

can someone help me out w/ that?

[HonzaPokorny]

Can someone please update this thread for Lucid? Thanks

[jbraswell]

Yes, that'd be helpful. I, also, have no jvm file.

[ka3sem]

How to install the skyway version of eclipse?

http://www.skywayperspectives.org/portal/web/guest/downloads/overview