Bug 46377 [misc] Save not working for linked resources in Java editor
Trying to open a java file stored in a linked folder, results in error message "Java editor could not initialize" and no editor is opened. Other functions like compiling or comparing work fine with files in a linked folder. In previous build of Eclipse the Java editor used to work fine on files in linked folder. The build I have found this bug in is the M4.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/filebuffers/DocumentAdapter2.java
* @see IBuffer#append(String) 
	 */
	public void append(String text) {
		if (DEBUG_LINE_DELIMITERS) {
			validateLineDelimiters(text);
		}
		fReplaceCmd.replace(fDocument.getLength(), 0, text);
	}
	
	/*
	 * @see IBuffer#close()
	 */
	public void close() {
		
		if (isClosed())
			return;
			
		IDocument d= fDocument;
		fDocument= null;
		d.removePrenotifiedDocumentListener(this);
		
		if (fTextFileBuffer != null) {
			ITextFileBufferManager manager= FileBuffers.getTextFileBufferManager();
			try {
				manager.disconnect(fTextFileBuffer.getLocation(), new NullProgressMonitor());
			} catch (CoreException x) {
				
			}
			fTextFileBuffer= null;
		}