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#setContents(String)
	 */
	public void setContents(String contents) {
		int oldLength= fDocument.getLength();
		
		if (contents == null) {
			
			if (oldLength != 0)
				fSetCmd.set(""); 
		
		} else {
			
			
			if (DEBUG_LINE_DELIMITERS) {
				validateLineDelimiters(contents);
			}
			
			if (!contents.equals(fDocument.get()))
				fSetCmd.set(contents);
		}
	}
	
	
	private void validateLineDelimiters(String contents) {
		if (fLegalLineDelimiters == null) {
			
			HashSet existingDelimiters= new HashSet();
			for (int i= fDocument.getNumberOfLines() - 1; i >= 0; i-- ) {