Bug 66234 [projection] Revert file sometimes does not display the imports
I was able to recreate the scenario, I have a Java file in a Java project as /* * Created on Jun 8, 2004 * * TODO To change the template for this generated file go to * Window - Preferences - Java - Code Style - Code Templates */ package com; import java.net.URL; import java.util.Date; /** * @author admin * * TODO To change the template for this generated type comment go to * Window - Preferences - Java - Code Style - Code Templates */ public class Test { Date xyz; URL abc; } I open it in the editor, delete the keyword 'package' so that that line only says com. Now I right click on file and select 'Revert File'. Notice that the imports list disappears. This is in M9.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
return segments;
	}
		
	/**
	 * Returns a segmentation of the given line appropriate for bidi rendering. The default
	 * implementation returns only the string literals of a java code line as segments.
	 * 
	 * @param widgetLineOffset the offset of the line
	 * @param line the content of the line
	 * @return the line's bidi segmentation
	 */
	protected int[] getBidiLineSegments(int widgetLineOffset, String line) {
		if (line != null && line.length() > 0) {
			ISourceViewer sourceViewer= getSourceViewer();
			if (sourceViewer != null) {
				int lineOffset;
				if (sourceViewer instanceof ITextViewerExtension5) {
					ITextViewerExtension5 extension= (ITextViewerExtension5) sourceViewer;
					lineOffset= extension.widgetOffset2ModelOffset(widgetLineOffset);
				} else {
					IRegion visible= sourceViewer.getVisibleRegion();
					lineOffset= visible.getOffset() + widgetLineOffset;
				}
				try {
					return getBidiLineSegments(sourceViewer, lineOffset);
				} catch (BadLocationException x) {
					
				}
			}
		}