I just can't seem to get Huge Pages working

[ajthemacboy]

Hi! I have a home server running Ubuntu 15.10. I use it almost entirely for Java servers. My applications would benefit a lot from Huge Pages, but I just can't seem to get them working.

Meminfo:

AnonHugePages:   1140736 kB
HugePages_Total:     256
HugePages_Free:      256
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB

/etc/security/limits.conf:

# End of file
aj   soft   memlock    4194304
aj   hard   memlock    4194304

/etc/default/grub:

GRUB_CMDLINE_LINUX_DEFAULT="hugepagesz=128M hugepages=8"

/etc/sysctl.conf:

vm.nr_hugepages = 256
vm.hugetlb_shm_group = 1000

Whenever I start my Java application with

-XX:+UseLargePages

I get this:

Java HotSpot(TM) 64-Bit Server VM warning: Failed to reserve large pages memory req_addr: 0x00000006c0000000 bytes: 4294967296 (errno = 12).

I've tried everything I can find. A while ago I tried creating a group just for Hugepages, and it didn't work. I want to be able to start my Java application from the default user, 'aj', so I really don't want to create a separate group anyway.

[ajthemacboy]

Bump, anyone have any suggestions?