Compile Error The System Is Out Of Resources

[GameBlonD]

  [javac] The system is out of resources.
    [javac] Consult the following stack trace for details.
    [javac] java.lang.OutOfMemoryError: Java heap space
    [javac]     at com.sun.tools.javac.util.Log.useSource(Log.java:211)
    [javac]     at com.sun.tools.javac.comp.MemberEnter.complete(MemberEnter.java:959)
    [javac]     at com.sun.tools.javac.code.Symbol.complete(Symbol.java:386)
    [javac]     at com.sun.tools.javac.code.Symbol$ClassSymbol.complete(Symbol.java:758)
    [javac]     at com.sun.tools.javac.comp.Enter.complete(Enter.java:451)
    [javac]     at com.sun.tools.javac.comp.Enter.main(Enter.java:429)
    [javac]     at com.sun.tools.javac.main.JavaCompiler.enterTrees(JavaCompiler.java:819)
    [javac]     at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:727)
    [javac]     at com.sun.tools.javac.main.Main.compile(Main.java:353)
    [javac]     at com.sun.tools.javac.main.Main.compile(Main.java:279)
    [javac]     at com.sun.tools.javac.main.Main.compile(Main.java:270)
    [javac]     at com.sun.tools.javac.Main.compile(Main.java:69)
    [javac]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [javac]     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    [javac]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    [javac]     at java.lang.reflect.Method.invoke(Method.java:597)
    [javac]     at org.apache.tools.ant.taskdefs.compilers.Javac13.execute(Javac13.java:56)
    [javac]     at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1065)
    [javac]     at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:882)
    [javac]     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
    [javac]     at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
    [javac]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    [javac]     at java.lang.reflect.Method.invoke(Method.java:597)
    [javac]     at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
    [javac]     at org.apache.tools.ant.Task.perform(Task.java:348)
    [javac]     at org.apache.tools.ant.Target.execute(Target.java:357)
    [javac]     at org.apache.tools.ant.Target.performTasks(Target.java:385)
    [javac]     at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
    [javac]     at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
    [javac]     at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
    [javac]     at org.eclipse.ant.internal.launching.remote.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
    [javac]     at org.apache.tools.ant.Project.executeTargets(Project.java:1189)

BUILD FAILED

Is there any way to fix this?

[^Wyatt]

"java.lang.OutOfMemoryError" You don't have enough RAM or you aren't giving enough RAM to the GS.

[GameBlonD]

"java.lang.OutOfMemoryError" You don't have enough RAM or you aren't giving enough RAM to the GS.

2 GB isn't enough to compile l2j H5 Core?

[SweeTs]

Looks like.. Your OS and all programs probably use most of your ram.. Open tasks manager and see how ram is in use, I wonder :P