eclipse juno - jalopy source code formatter give Unhandled event loop exception when formatting -


i have used eclipse indigo , juno set jalopy according jalopy installation guide.my jalopy version 1.9.4. can format code in indigo without problem. can't format code in juno. in error log view, can see unhandled event loop exception in org.eclipse.ui plugin, when try format code in juno.

this relevant exception stack trace

org.eclipse.swt.swtexception: failed execute runnable (java.util.concurrentmodificationexception) @ org.eclipse.swt.swt.error(swt.java:4361) @ org.eclipse.swt.swt.error(swt.java:4276) @ org.eclipse.swt.widgets.synchronizer.runasyncmessages(synchronizer.java:138) @ org.eclipse.swt.widgets.display.runasyncmessages(display.java:4144) @ org.eclipse.swt.widgets.display.readanddispatch(display.java:3761) @ org.eclipse.e4.ui.internal.workbench.swt.partrenderingengine$9.run(partrenderingengine.java:1022) @ org.eclipse.core.databinding.observable.realm.runwithdefault(realm.java:332) @ org.eclipse.e4.ui.internal.workbench.swt.partrenderingengine.run(partrenderingengine.java:916) @ org.eclipse.e4.ui.internal.workbench.e4workbench.createandrunui(e4workbench.java:86) @ org.eclipse.ui.internal.workbench$5.run(workbench.java:585) @ org.eclipse.core.databinding.observable.realm.runwithdefault(realm.java:332) @ org.eclipse.ui.internal.workbench.createandrunworkbench(workbench.java:540) @ org.eclipse.ui.platformui.createandrunworkbench(platformui.java:149) @ org.eclipse.ui.internal.ide.application.ideapplication.start(ideapplication.java:124) @ org.eclipse.equinox.internal.app.eclipseapphandle.run(eclipseapphandle.java:196) @ org.eclipse.core.runtime.internal.adaptor.eclipseapplauncher.runapplication(eclipseapplauncher.java:110) @ org.eclipse.core.runtime.internal.adaptor.eclipseapplauncher.start(eclipseapplauncher.java:79) @ org.eclipse.core.runtime.adaptor.eclipsestarter.run(eclipsestarter.java:353) @ org.eclipse.core.runtime.adaptor.eclipsestarter.run(eclipsestarter.java:180) @ sun.reflect.nativemethodaccessorimpl.invoke0(native method) @ sun.reflect.nativemethodaccessorimpl.invoke(unknown source) @ sun.reflect.delegatingmethodaccessorimpl.invoke(unknown source) @ java.lang.reflect.method.invoke(unknown source) @ org.eclipse.equinox.launcher.main.invokeframework(main.java:629) @ org.eclipse.equinox.launcher.main.basicrun(main.java:584) @ org.eclipse.equinox.launcher.main.run(main.java:1438) @ org.eclipse.equinox.launcher.main.main(main.java:1414) caused by: java.util.concurrentmodificationexception @ com.triemax.eclipseplugin.l(eclipseplugin.java) @ com.triemax.eclipseplugin.a(eclipseplugin.java:74) @ com.triemax.nu.run(nu.java:8) @ org.eclipse.swt.widgets.runnablelock.run(runnablelock.java:35) @ org.eclipse.swt.widgets.synchronizer.runasyncmessages(synchronizer.java:135) ... 24 more

what reason exception? how prevent this?

edit :same exception arise in eclipse kepler

the version have not compatible juno or kepler. more recent build fixes problem.


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