Bug 54922 [implementation] Java editor disposes default StyledText caret's image
Build id: 200403040800 Java editor, according to the insert mode, sets a special Caret in the StyledText. I've two problem with that: 1- This caret is not bidi aware 2- At some point they dispose the image of the StyledText default Caret We (SWT Team) have some major changes (still to be release) in StyledText that will expose this UI bug. Here is the stack trace: java.lang.Exception: Stack trace at java.lang.Thread.dumpStack(Thread.java:1064) at org.eclipse.swt.graphics.Image.dispose(Image.java:825) at org.eclipse.ui.texteditor.AbstractTextEditor.disposeNonDefaultCaret (AbstractTextEditor.java:4378) at org.eclipse.ui.texteditor.AbstractTextEditor.updateCaret (AbstractTextEditor.java:4359) at org.eclipse.ui.texteditor.AbstractTextEditor.handleInsertModeChanged (AbstractTextEditor.java:4399) at org.eclipse.ui.texteditor.AbstractTextEditor.setInsertMode (AbstractTextEditor.java:4234) at org.eclipse.ui.texteditor.AbstractTextEditor.switchToNextInsertMode (AbstractTextEditor.java:4266) at org.eclipse.ui.texteditor.AbstractTextEditor.access$4 (AbstractTextEditor.java:4253) at org.eclipse.ui.texteditor.AbstractTextEditor$ToggleInsertModeAction.run (AbstractTextEditor.java:808) at org.eclipse.ui.texteditor.TextNavigationAction.runWithEvent (TextNavigationAction.java:106) at org.eclipse.ui.commands.ActionHandler.execute(ActionHandler.java:68) at org.eclipse.ui.internal.commands.Command.execute(Command.java:160) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand (WorkbenchKeyboard.java:475) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press (WorkbenchKeyboard.java:887) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent (WorkbenchKeyboard.java:931) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings (WorkbenchKeyboard.java:568) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$2 (WorkbenchKeyboard.java:500) at org.eclipse.ui.internal.keys.WorkbenchKeyboard$1.handleEvent (WorkbenchKeyboard.java:256) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82) at org.eclipse.swt.widgets.Display.filterEvent(Display.java:705) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:809) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:834) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:819) at org.eclipse.swt.widgets.Control.sendKeyEvent(Control.java:1720) at org.eclipse.swt.widgets.Control.sendKeyEvent(Control.java:1716) at org.eclipse.swt.widgets.Control.WM_KEYDOWN(Control.java:3487) at org.eclipse.swt.widgets.Control.windowProc(Control.java:2971) at org.eclipse.swt.widgets.Display.windowProc(Display.java:2962) at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java:1362) at org.eclipse.swt.internal.BidiUtil.windowProc(BidiUtil.java:647) at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method) at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:1438) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2100) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1509) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1480) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench (Workbench.java:257) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:139) at org.eclipse.ui.internal.ide.IDEApplication.run (IDEApplication.java:48) at org.eclipse.core.internal.runtime.PlatformActivator$1.run (PlatformActivator.java:260) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:173) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:106) 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:305) at org.eclipse.core.launcher.Main.run(Main.java:745) at org.eclipse.core.launcher.Main.main(Main.java:713)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
public void modifyText(ModifyEvent e) {
			numberFieldChanged((Text) e.widget);
		}
	};
	
	private List fSyntaxColorList;
	private List fAppearanceColorList;
	private List fContentAssistColorList;
	private List fAnnotationList;
	private ColorEditor fSyntaxForegroundColorEditor;
	private ColorEditor fAppearanceColorEditor;
	private ColorEditor fAnnotationForegroundColorEditor;
	private ColorEditor fContentAssistColorEditor;
	private ColorEditor fBackgroundColorEditor;
	private Button fBackgroundDefaultRadioButton;
	private Button fBackgroundCustomRadioButton;
	private Button fBackgroundColorButton;
	private Button fBoldCheckBox;
	private Button fAddJavaDocTagsButton;
	private Button fEscapeStringsButton;
	private Button fGuessMethodArgumentsButton;
	private SourceViewer fPreviewViewer;
	private Color fBackgroundColor;
    private Control fAutoInsertDelayText;
    private Control fAutoInsertJavaTriggerText;
    private Control fAutoInsertJavaDocTriggerText;
	private Label fAutoInsertDelayLabel;
	private Label fAutoInsertJavaTriggerLabel;
	private Label fAutoInsertJavaDocTriggerLabel;
	private Button fShowInTextCheckBox;