error compiling l2jserver

[stormstar]

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L2J Revision 4968:
L2JDP Revision 8398:

Hello i would like to get some help here, im trying to learn and i did manage to solve this problem myself before but i dont have a clue what i done last time to make it work.

I have checked out files from trunk, made some custom edits and trying to compile, datapack is done without any troubles.

When i try to compile server side im getting this error

Buildfile: C:\Users\Call-Off-Duty\workspace\L2J_Server_BETA\build.xml
clean:
[delete] Deleting directory C:\Users\Call-Off-Duty\workspace\L2J_Server_BETA\build
checkRequirements:
getChangelogDateVersion:
init:
[mkdir] Created dir: C:\Users\Call-Off-Duty\workspace\L2J_Server_BETA\build
[mkdir] Created dir: C:\Users\Call-Off-Duty\workspace\L2J_Server_BETA\build\classes
compile:
[javac] Compiling 1551 source files to C:\Users\Call-Off-Duty\workspace\L2J_Server_BETA\build\classes
[javac] javac: invalid target release: 1.7
[javac] Usage: javac <options> <source files>
[javac] use -help for a list of possible options

BUILD FAILED
C:\Users\Call-Off-Duty\workspace\L2J_Server_BETA\build.xml:57: Compile failed; see the compiler error output for details.

Total time: 4 seconds

Anyone can help me with this quickly? i will be searching for hours to find the problem

it will be appreciated a lot!

Thanks in advance

[stormstar]

Ok i seem to have found my solution Quicker then expected

External Tools Configuration

Seperate JRE's and add right one and it compiled without any troubles