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The Package Exporer Tree is empty when I switch back from the Debug perspektive to the Java perspektive on my Ubuntu Gnome Desktop. Empty means: Only triangles for tree nodes are displayed, no labels are displayed. The following exception is in the error log. java.lang.ArrayIndexOutOfBoundsException: 4 at org.eclipse.swt.widgets.Table._getItem(Table.java:153) at org.eclipse.swt.widgets.Table.cellDataProc(Table.java:181) at org.eclipse.swt.widgets.Display.cellDataProc(Display.java:759) at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method) at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:2422) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3428) at org.eclipse.jface.window.Window.runEventLoop(Window.java:827) at org.eclipse.jface.window.Window.open(Window.java:803) at org.eclipse.ui.internal.views.log.EventDetailsDialog.open(EventDetailsDialog.java:181) at org.eclipse.ui.internal.views.log.EventDetailsDialogAction.run(EventDetailsDialogAction.java:98) at org.eclipse.ui.internal.views.log.LogView$15.doubleClick(LogView.java:546) at org.eclipse.jface.viewers.StructuredViewer$1.run(StructuredViewer.java:832) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:173) at org.eclipse.jface.viewers.StructuredViewer.fireDoubleClick(StructuredViewer.java:829) at org.eclipse.jface.viewers.AbstractTreeViewer.handleDoubleSelect(AbstractTreeViewer.java:1470) at org.eclipse.jface.viewers.StructuredViewer$4.widgetDefaultSelected(StructuredViewer.java:1263) at org.eclipse.jface.util.OpenStrategy.fireDefaultSelectionEvent(OpenStrategy.java:252) at org.eclipse.jface.util.OpenStrategy.access$0(OpenStrategy.java:249) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:311) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4481) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1327) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3819) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3430) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608) at org.eclipse.equinox.launcher.Main.run(Main.java:1515) at org.eclipse.equinox.launcher.Main.main(Main.java:1488) eclipse.buildId=4.5.0.I20150603-2000 java.version=1.7.0_71 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=de_DE Framework arguments: -product org.eclipse.epp.package.jee.product Command-line arguments: -os linux -ws gtk -arch x86_64 -product org.eclipse.epp.package.jee.product
Please give a hint which desktop are you using, which visual theme, and which gtk2 and gtk 3 versions are installed. On Fedora/RHEL you can run: rpm -qa | grep gtk2;rpm -qa | grep gtk3 I guess you using Eclipse with GTK3 (default) toolkit.
$ dpkg -l | grep gtk2; dpkg -l | grep gtk3 ii gtk2-engines 1:2.20.2-1ubuntu1 theme engines for GTK+ 2.x ii gtk2-engines:i386 1:2.20.2-1ubuntu1 theme engines for GTK+ 2.x ii gtk2-engines-aurora 1.5.1-2 Aurora gtk+-2.0 theme engine ii gtk2-engines-cleanice 2.4.1-3 CleanIce themes for GTK+ 2.x ii gtk2-engines-equinox 1.50-0ubuntu1 Equinox GTK+ theme engine ii gtk2-engines-murrine 0.98.2-0ubuntu1 cairo-based gtk+-2.0 theme engine ii gtk2-engines-murrine:i386 0.98.2-0ubuntu1 cairo-based gtk+-2.0 theme engine ii gtk2-engines-oxygen 1.2.2-0ubuntu1.1 Oxygen widget theme for GTK+-based applications ii gtk2-engines-oxygen:i386 1.2.2-0ubuntu1.1 Oxygen widget theme for GTK+-based applications ii gtk2-engines-pixbuf 2.24.10-0ubuntu6.1 pixbuf-based theme for GTK+ 2.x ii gtk2-engines-pixbuf:i386 2.24.10-0ubuntu6.1 pixbuf-based theme for GTK+ 2.x ii gtk2-engines-qtcurve 1.8.14-1 This is a set of widget styles for Gtk2 based apps ii gtk2-engines-xfce 2.8.1-3 GTK+-2.0 theme engine for Xfce ii indicator-application-gtk2 0.5.0-0ubuntu1 Application Indicators ii indicator-messages-gtk2 0.6.0-0ubuntu2 indicator that collects messages that need a response ii indicator-sound-gtk2 0.8.5.0-0ubuntu2.1 System sound indicator. ii libgtk2-notify-perl 0.05-3build1 Perl interface to libnotify ii libgtk2-perl 2:1.223-1build3 Perl interface to the 2.x series of the Gimp Toolkit library ii libgtk2-trayicon-perl 0.06-1build2 Perl interface to fill the system tray ii libgtk2.0-0 2.24.10-0ubuntu6.1 GTK+ graphical user interface library ii libgtk2.0-0:i386 2.24.10-0ubuntu6.1 GTK+ graphical user interface library ii libgtk2.0-bin 2.24.10-0ubuntu6.1 programs for the GTK+ graphical user interface library ii libgtk2.0-cil 2.12.10-2ubuntu4 CLI binding for the GTK+ toolkit 2.12 ii libgtk2.0-common 2.24.10-0ubuntu6.1 common files for the GTK+ graphical user interface library ii libgtk2.0-dev 2.24.10-0ubuntu6.1 development files for the GTK+ library ii libgwibber-gtk2 3.4.2-0ubuntu2.4 Gwibber GTK Widgets ii libwxgtk2.8-0 2.8.12.1-6ubuntu2 wxWidgets Cross-platform C++ GUI toolkit (GTK+ runtime) ii pinentry-gtk2 0.8.1-1ubuntu1 GTK+-2-based PIN or pass-phrase entry dialog for GnuPG ii python-gtk2 2.24.0-3 Python bindings for the GTK+ widget set ii python-wxgtk2.8 2.8.12.1-6ubuntu2 wxWidgets Cross-platform C++ GUI toolkit (wxPython binding) ii appmenu-gtk3 0.3.92-0ubuntu1.1 Export GTK menus over DBus ii gtk3-engines-oxygen 1.0.2-0ubuntu2 Oxygen widget theme for GTK3-based applications ii gtk3-engines-unico 1.0.2-0ubuntu1 Unico Gtk+ 3 theme engine ii ibus-gtk3 1.4.1-3ubuntu1 Intelligent Input Bus - GTK+3 support ii libavahi-ui-gtk3-0 0.6.30-5ubuntu2.1 Avahi GTK+ User interface library for GTK3 ii libcanberra-gtk3-0 0.28-3ubuntu3 GTK+ 3.0 helper for playing widget event sounds with libcanberra ii libcanberra-gtk3-module 0.28-3ubuntu3 translates GTK3 widgets signals to event sounds ii libdbusmenu-gtk3-4 0.6.2-0ubuntu0.2 library for passing menus over DBus - GTK+ version ii libindicate-gtk3 0.6.92-0ubuntu1 library for raising indicators via DBus - GTK+ bindings ii python-aptdaemon.gtk3widgets 0.43+bzr805-0ubuntu10 Python GTK+ 3 widgets to run an aptdaemon client
Preferences > General > Apperance: Theme: GTK Color and Font Theme: Classic Theme (current)
The Desktop is Gnome Shell, not Unity.
(In reply to Andreas Watermeyer from comment #3) > Preferences > General > Apperance: > Theme: GTK > Color and Font Theme: Classic Theme (current) I meant which Gnome theme you are using? Can you please post gtk 3 version (probably dpkg -l | grep gtk-3)? Is this error always reproducible with this stack trace? Can you please provide steps to reproduce? The stack trace you've posted doesn't seem to happen during the perspective switch - it looks more like happening on log entry double clicking.
This issue doesn't seem to occur for me anymore. (Fedora/Ubuntu/Cent OS). -> lowering priority. There was a stackoverflow on Eclipse, Gtk3 on unbuntu related to perspectives (or re-sizing in general), that may have caused the behaviour described: Bug 497705 – Unhandled event loop > StackOverflow in Perspective https://bugs.eclipse.org/bugs/show_bug.cgi?id=497705 In the mean time, the bug was fixed, (recently). Also, the selection logic was changed, (default selection), which is listed in the stack trace. Can you please try the newest eclipse and let me know if the issue still occurs? To download recent nightly/integration builds, please go here: http://download.eclipse.org/eclipse/downloads/ - Scroll down to "4.x Integration Builds". - Click on the most recent stable build like "I201XXXXX...", - Find your platform in the "Eclipse SDK". Download the archive, extract it and run the 'eclipse' binary. Please test on gtk3: export SWT_GTK3=1 eclipse
Doesnt appear anymore in current eclipse versions.
