Bug 53010 Editor preferences do not take effect on open editors
I-20040224 Go to the Java > Editor > Syntax preference page. Change the keyword color to red. Press Ok. At this point, we use to see the preview update. Not on this build (problem #1). Press Ok, and close the pref dialog. The java editor that was already open did not update. I had to close it and reopen it for the colors to take effect (problem #2)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
* 
	 * @param msg message to be set
	 */
	protected void setStatusLineErrorMessage(String msg) {
		IEditorStatusLine statusLine= (IEditorStatusLine) getAdapter(IEditorStatusLine.class);
		if (statusLine != null)
			statusLine.setMessage(true, msg, null);	
	}
	/**
	 * Sets the given message as message to this editor's status line.
	 * 
	 * @param msg message to be set
	 * @since 3.0
	 */
	protected void setStatusLineMessage(String msg) {
		IEditorStatusLine statusLine= (IEditorStatusLine) getAdapter(IEditorStatusLine.class);
		if (statusLine != null)
			statusLine.setMessage(false, msg, null);	
	}
	
	/**
	 * Returns the signed current selection.
	 * The length will be negative if the resulting selection
	 * is right-to-left (RtoL).
	 * <p>
	 * The selection offset is model based.
	 * </p>
	 * 
	 * @param sourceViewer the source viewer
	 * @return a region denoting the current signed selection, for a resulting RtoL selections lenght is < 0