missing rights to run java applet in browser after upgrade to 10.04

[a.dimuzio]

I'm having a very strange error after upgrading to (K)Ubuntu 10.04.. basically Java Applets don't work in any browser (tried with Firefox, Chrome and Opera).
The applet loads (plugin and JVM detected by all browsers) but it is grayed out.

After trying all possible solutions I could think of (including installing alternatives jvm) I tried to run the browser as superuser: the applet is then working correctly.

So somehow it seems to be a user right problem, but I'm not sure where this is coming from, both java (sun-6) and the browsers were installed and working ok in 9.10.

Here is the directory list of /usr/lib/jvm/java-6-sun/jre/lib/i386



drwxr-xr-x 2 root root 4.0K 2010-05-07 14:03 client
drwxr-xr-x 2 root root 4.0K 2010-05-07 14:03 headless
drwxr-xr-x 2 root root 4.0K 2010-05-07 14:03 jli
lrwxrwxrwx 1 root root 23 2010-05-07 14:03 jvm.cfg -> /etc/java-6-sun/jvm.cfg
-rw-r--r-- 1 root root 13K 2010-04-12 23:36 libattach.so
-rw-r--r-- 1 root root 609K 2010-04-12 23:36 libawt.so
-rw-r--r-- 1 root root 395K 2010-04-12 23:36 libcmm.so
-rw-r--r-- 1 root root 177K 2010-04-12 23:36 libdcpr.so
-rw-r--r-- 1 root root 281K 2010-04-12 23:39 libdeploy.so
-rw-r--r-- 1 root root 19K 2010-04-12 23:36 libdt_socket.so
-rw-r--r-- 1 root root 636K 2010-04-12 23:36 libfontmanager.so
-rw-r--r-- 1 root root 218K 2010-04-12 23:36 libhprof.so
-rw-r--r-- 1 root root 46K 2010-04-12 23:36 libinstrument.so
-rw-r--r-- 1 root root 20K 2010-04-12 23:36 libioser12.so
-rw-r--r-- 1 root root 39K 2010-04-12 23:36 libj2gss.so
-rw-r--r-- 1 root root 12K 2010-04-12 23:36 libj2pcsc.so
-rw-r--r-- 1 root root 71K 2010-04-12 23:36 libj2pkcs11.so
-rw-r--r-- 1 root root 6.3K 2010-04-12 23:36 libjaas_unix.so
-rw-r--r-- 1 root root 25K 2010-04-12 23:36 libjava_crw_demo.so
-rw-r--r-- 1 root root 79K 2010-04-12 23:39 libjavaplugin_jni.so
-rw-r--r-- 1 root root 350K 2010-04-12 23:39 libjavaplugin_nscp_gcc29.so
-rw-r--r-- 1 root root 263K 2010-04-12 23:39 libjavaplugin_nscp.so
-rw-r--r-- 1 root root 185K 2010-04-12 23:36 libjava.so
-rw-r--r-- 1 root root 5.3K 2010-04-12 23:36 libjawt.so
-rw-r--r-- 1 root root 70K 2010-04-12 23:36 libJdbcOdbc.so
-rw-r--r-- 1 root root 273K 2010-04-12 23:36 libjdwp.so
-rw-r--r-- 1 root root 207K 2010-04-12 23:36 libjpeg.so
-rw-r--r-- 1 root root 8.0K 2010-04-12 23:36 libjsig.so
-rw-r--r-- 1 root root 80K 2010-04-12 23:36 libjsoundalsa.so
-rw-r--r-- 1 root root 231K 2010-04-12 23:36 libjsound.so
-rw-r--r-- 1 root root 34K 2010-04-12 23:36 libmanagement.so
-rw-r--r-- 1 root root 812K 2010-04-12 23:36 libmlib_image.so
-rw-r--r-- 1 root root 5.2K 2010-04-12 23:36 libnative_chmod_g.so
-rw-r--r-- 1 root root 5.3K 2010-04-12 23:36 libnative_chmod.so
-rw-r--r-- 1 root root 94K 2010-04-12 23:36 libnet.so
-rw-r--r-- 1 root root 37K 2010-04-12 23:36 libnio.so
-rw-r--r-- 1 root root 76K 2010-04-12 23:39 libnpjp2.so
-rw-r--r-- 1 root root 13K 2010-04-12 23:36 libnpt.so
lrwxrwxrwx 1 root root 31 2010-05-07 14:03 libodbcinst.so -> ../../../../../libodbcinst.so.1
lrwxrwxrwx 1 root root 27 2010-05-07 14:03 libodbc.so -> ../../../../../libodbc.so.1
-rw-r--r-- 1 root root 4.8K 2010-04-12 23:36 librmi.so
-rw-r--r-- 1 root root 38K 2010-04-12 23:36 libsaproc.so
-rw-r--r-- 1 root root 263K 2010-04-12 23:36 libsplashscreen.so
-rw-r--r-- 1 root root 141K 2010-04-12 23:36 libunpack.so
-rw-r--r-- 1 root root 56K 2010-04-12 23:36 libverify.so
-rw-r--r-- 1 root root 75K 2010-04-12 23:36 libzip.so
drwxr-xr-x 2 root root 4.0K 2010-05-07 14:03 motif21
drwxr-xr-x 2 root root 4.0K 2010-05-07 14:03 native_threads
drwxr-xr-x 2 root root 4.0K 2010-05-07 14:03 server
drwxr-xr-x 2 root root 4.0K 2010-05-07 14:03 xawt


Any idea? It seems I'm the only one to have this problem so I'm hesitating to fill a bug report...

[a.dimuzio]

Another interesting clue, I can't run policytool as a regolar user:


./policytool
Warning: Cannot convert string "-dejavu-dejavu sans-medium-r-normal--*-140-*-*-p-*-iso10646-1" to type FontStruct
Exception in thread "main" java.lang.NullPointerException: NullPointerException
at sun.awt.motif.MTextFieldPeer.setFont(Native Method)
at sun.awt.motif.MComponentPeer.initialize(MComponent Peer.java:179)
at sun.awt.motif.MTextFieldPeer.initialize(MTextField Peer.java:70)
at sun.awt.motif.MComponentPeer.init(MComponentPeer.j ava:223)
at sun.awt.motif.MComponentPeer.<init>(MComponentPeer.java:227)
at sun.awt.motif.MTextFieldPeer.<init>(MTextFieldPeer.java:74)
at sun.awt.motif.MToolkit.createTextField(MToolkit.ja va:186)
at java.awt.TextField.addNotify(TextField.java:205)
at java.awt.Container.addNotify(Container.java:2578)
at java.awt.Window.addNotify(Window.java:663)
at java.awt.Frame.addNotify(Frame.java:470)
at java.awt.Window.show(Window.java:859)
at java.awt.Component.show(Component.java:1563)
at java.awt.Component.setVisible(Component.java:1515)
at java.awt.Window.setVisible(Window.java:842)
at sun.security.tools.ToolWindow.initWindow(PolicyToo l.java:1030)
at sun.security.tools.ToolWindow.displayToolWindow(Po licyTool.java:1129)
at sun.security.tools.PolicyTool.main(PolicyTool.java :705)


Running the same command as superuser (kdesudo ./policytool) works without exceptions.

[a.dimuzio]

Solved :-)
It was not at all a rights problem.. I figured it out by creating another normal user and testing it again.. everything is working.

Then I figured it was a profile problem, something I set in the past in either .bashrc or .profile was driving java crazy.

And then I remember I had to add


export AWT_TOOLKIT="MToolkit"

to .profile to fix a bug in 9.10 avoiding java GUi to dispaly correctly.

Once this line removed everything started to work again.

The question remains, why did it happen after the upgrade? If somebody has an explication it is very much appreciated.