java - OutOfMemoryError on Eclipse using a webapp when compiling on browser -


i receive following error when trying compile webapp on browser:

[error] outofmemoryerror: increase heap size or lower gwt.jjs.maxthreads java.lang.outofmemoryerror: java heap space     @ java.util.arrays.copyof(unknown source)     @ java.lang.abstractstringbuilder.expandcapacity(unknown source)     @ java.lang.abstractstringbuilder.ensurecapacityinternal(unknown source)     @ java.lang.abstractstringbuilder.append(unknown source)     @ java.lang.stringbuffer.append(unknown source)     @ java.io.stringwriter.write(unknown source)     @ java.io.printwriter.write(unknown source)     @ java.io.printwriter.write(unknown source)     @ java.io.printwriter.print(unknown source)     @ com.google.gwt.dev.util.abstracttextoutput.printandcount(abstracttextoutput.java:161)     @ com.google.gwt.dev.util.abstracttextoutput.print(abstracttextoutput.java:117)     @ com.google.gwt.dev.js.jstostringgenerationvisitor._nameref(jstostringgenerationvisitor.java:1120)     @ com.google.gwt.dev.js.jstostringgenerationvisitor.visit(jstostringgenerationvisitor.java:645)     @ com.google.gwt.dev.js.ast.jsnameref.traverse(jsnameref.java:121)     @ com.google.gwt.dev.js.ast.jsvisitor.dotraverse(jsvisitor.java:467)     @ com.google.gwt.dev.js.ast.jsvisitor.doaccept(jsvisitor.java:444)     @ com.google.gwt.dev.js.jssourcegenerationvisitorwithsizebreakdown.generateandbill(jssourcegenerationvisitorwithsizebreakdown.java:71)     @ com.google.gwt.dev.js.jsreportgenerationvisitor.generateandbill(jsreportgenerationvisitor.java:109)     @ com.google.gwt.dev.js.jssourcegenerationvisitorwithsizebreakdown.doaccept(jssourcegenerationvisitorwithsizebreakdown.java:63)     @ com.google.gwt.dev.js.ast.jsvisitor.accept(jsvisitor.java:109)     @ com.google.gwt.dev.js.jstostringgenerationvisitor.visit(jstostringgenerationvisitor.java:594)     @ com.google.gwt.dev.js.ast.jsinvocation.traverse(jsinvocation.java:91)     @ com.google.gwt.dev.js.ast.jsvisitor.dotraverse(jsvisitor.java:467)     @ com.google.gwt.dev.js.ast.jsvisitor.doaccept(jsvisitor.java:444)     @ com.google.gwt.dev.js.jssourcegenerationvisitorwithsizebreakdown.generateandbill(jssourcegenerationvisitorwithsizebreakdown.java:71)     @ com.google.gwt.dev.js.jsreportgenerationvisitor.generateandbill(jsreportgenerationvisitor.java:109)     @ com.google.gwt.dev.js.jssourcegenerationvisitorwithsizebreakdown.doaccept(jssourcegenerationvisitorwithsizebreakdown.java:63)     @ com.google.gwt.dev.js.ast.jsvisitor.accept(jsvisitor.java:109)     @ com.google.gwt.dev.js.jstostringgenerationvisitor.visit(jstostringgenerationvisitor.java:445)     @ com.google.gwt.dev.js.ast.jsexprstmt.traverse(jsexprstmt.java:41)     @ com.google.gwt.dev.js.ast.jsvisitor.dotraverse(jsvisitor.java:467)     @ com.google.gwt.dev.js.ast.jsvisitor.doaccept(jsvisitor.java:444)                [error] out of memory; increase amount of memory, use -xmx flag @ startup (java -xmx128m ...)             [error] unrecoverable exception, shutting down com.google.gwt.core.ext.unabletocompleteexception: (see previous log entries)     @ com.google.gwt.dev.threadedpermutationworkerfactory$threadedpermutationworker.compile(threadedpermutationworkerfactory.java:56)     @ com.google.gwt.dev.permutationworkerfactory$manager$workerthread.run(permutationworkerfactory.java:74)     @ java.lang.thread.run(unknown source)             [error] not permutation compiled , completed (0/1)       [warn] recompile failed       [warn] continuing serve previous version

i don't understand why getting error because have modified run configuration of project in arguments, vm arguments -xmx1024m.

also, eclipse.ini looks this:

-startup ../../../.p2/pool/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar --launcher.library ../../../.p2/pool/plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.300.v20150602-1417 -product org.eclipse.epp.package.jee.product --launcher.defaultaction openfile --launcher.xxmaxpermsize 256m -showsplash org.eclipse.platform --launcher.xxmaxpermsize 256m --launcher.defaultaction openfile --launcher.appendvmargs -install c:/users/andrei/eclipse/jee-mars2/eclipse -vm c:/program files/java/jre1.8.0_71/bin -vmargs -dosgi.requiredjavaversion=1.7 -xms256m -xmx2048m -doomph.update.url=http://download.eclipse.org/oomph/updates/milestone/latest -doomph.redirection.index.redirection=index:/->http://git.eclipse.org/c/oomph/org.eclipse.oomph.git/plain/setups/

try setting maxpermspace : -xms512m -xmx1024m -xx:maxpermsize=512m


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