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Build R2.1 I was about to post a patch (~4MB) to dev.eclipse.org, and when right clicking on the ZIP file to get to commit menu, Eclipse froze for several minutes, to perform some compare action for free: main" prio=5 tid=0x00234D28 nid=0x830 runnable [6e000..6fc40] at org.eclipse.compare.ZipFileStructureCreator.getStructure (ZipFileStructureCreator.java:237) at org.eclipse.compare.internal.ResourceCompareInput.getStructure (ResourceCompareInput.java:221) at org.eclipse.compare.internal.ResourceCompareInput.setSelection (ResourceCompareInput.java:151) at org.eclipse.compare.internal.CompareAction.selectionChanged (CompareAction.java:48) at org.eclipse.ui.internal.PluginAction.refreshEnablement (PluginAction.java:205) at org.eclipse.ui.internal.PluginAction.selectionChanged (PluginAction.java:272) at org.eclipse.ui.internal.ObjectActionContributor.contributeObjectActions (ObjectActionContributor.java:98) at org.eclipse.ui.internal.ObjectActionContributorManager.contributeObjectActions (ObjectActionContributorManager.java:133) at org.eclipse.ui.internal.PopupMenuExtender.addObjectActions (PopupMenuExtender.java:57) at org.eclipse.ui.internal.PopupMenuExtender.menuAboutToShow (PopupMenuExtender.java:78) at org.eclipse.jface.action.MenuManager.fireAboutToShow (MenuManager.java:255) at org.eclipse.jface.action.MenuManager.handleAboutToShow (MenuManager.java:334) at org.eclipse.jface.action.MenuManager.access$0(MenuManager.java:331) at org.eclipse.jface.action.MenuManager$2.menuShown(MenuManager.java:343) at org.eclipse.swt.widgets.TypedListener.handleEvent (TypedListener.java:116) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:81) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:840) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:865) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:845) at org.eclipse.swt.widgets.Control.WM_INITMENUPOPUP(Control.java:3141) at org.eclipse.swt.widgets.Control.windowProc(Control.java:2785) at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1229) at org.eclipse.swt.widgets.Display.windowProc(Display.java:2361) at org.eclipse.swt.internal.win32.OS.TrackPopupMenu(Native Method) at org.eclipse.swt.widgets.Menu._setVisible(Menu.java:218) at org.eclipse.swt.widgets.Display.runPopups(Display.java:1863) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1538) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1402) at org.eclipse.ui.internal.Workbench.run(Workbench.java:1385) at org.eclipse.core.internal.boot.InternalBootLoader.run (InternalBootLoader.java:845) at org.eclipse.core.boot.BootLoader.run(BootLoader.java:461) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.eclipse.core.launcher.Main.basicRun(Main.java:291) at org.eclipse.core.launcher.Main.run(Main.java:747) at org.eclipse.core.launcher.Main.main(Main.java:583) Note: I have CVS label decoration enabled.
I haven't selected this JAR for an explicit compare each other action.
Actually, the deadly scenario is to right click on 2 selected files at once. Steps: - checkout project jdt-core-home from dev.eclipse.org - select both patches/org.eclipse.jdt.core_2.2.0.zip and r2.2/main.html - right click to access team menus -> freezes (worked around by disabling completely the ZIP/JAR compare code). Side-note: it feels like ResourceCompareInput.setSelection could be slightly improved to avoid retrieving structure for right element if left structure came back as null. ... fLeft= getStructure(fLeftResource); if (fLeft != null) { // don't bother if left has no comparable structure fRight= getStructure(fRightResource); } if (incomparable(fLeft, fRight)) return false; ... but this isn't what's causing grief here unfortunately.
It seems to occur only if selecting both a ZIP/JAR and some html. Selecting 2 ZIPs does some work but it takes only a second to complete.
This bug keeps hitting me and is quite painfull.
fixed and released for I20030603
Has been fixed for M1