'Project Explorer' has encountered a problem.
An internal error has occurred.

An internal error has occurred.
Java heap space

eclipse.buildId=4.4.1.M20140925-0400
java.version=1.7.0_76
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Framework arguments: -product org.eclipse.epp.package.cpp.product
Command-line arguments: -os linux -ws gtk -arch x86_64 -product org.eclipse.epp.package.cpp.product

org.eclipse.ui
Error
Tue Jan 27 17:57:39 CET 2015
An internal error has occurred.

java.lang.OutOfMemoryError: Java heap space
at org.eclipse.ui.part.ResourceTransfer.nativeToJava(ResourceTransfer.java:162)
at org.eclipse.swt.dnd.Clipboard.getContents(Clipboard.java:330)
at org.eclipse.swt.dnd.Clipboard.getContents(Clipboard.java:241)
at org.eclipse.ui.internal.navigator.resources.actions.PasteAction$1.run(PasteAction.java:192)
at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:187)
at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:156)
at org.eclipse.swt.widgets.Display.syncExec(Display.java:4590)
at org.eclipse.ui.internal.navigator.resources.actions.PasteAction.updateSelection(PasteAction.java:186)
at org.eclipse.ui.actions.BaseSelectionListenerAction.selectionChanged(BaseSelectionListenerAction.java:124)
at org.eclipse.ui.internal.navigator.resources.actions.EditActionGroup.updateActionBars(EditActionGroup.java:153)
at org.eclipse.ui.internal.navigator.resources.actions.EditActionGroup.fillActionBars(EditActionGroup.java:99)
at org.eclipse.ui.internal.navigator.resources.actions.EditActionProvider.fillActionBars(EditActionProvider.java:49)
at org.eclipse.ui.navigator.NavigatorActionService$3.run(NavigatorActionService.java:259)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.navigator.NavigatorActionService.fillActionBars(NavigatorActionService.java:253)
at org.eclipse.ui.navigator.CommonNavigatorManager$2.run(CommonNavigatorManager.java:92)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.navigator.CommonNavigatorManager$UpdateActionBarsJob.runInUIThread(CommonNavigatorManager.java:87)
at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:97)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3774)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3412)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)

-startup
plugins/org.eclipse.equinox.launcher_1.3.0.v20140415-2008.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.gtk.linux.x86_64_1.1.200.v20140603-1326
-product
org.eclipse.epp.package.cpp.product
--launcher.defaultAction
openFile
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
-vm
/usr/lib/jvm/java-7-oracle/jre/bin/java
-vmargs
-Dosgi.requiredJavaVersion=1.7
-XX:MaxPermSize=1024m
-Xms512m
-Xmx1024m