Bug 4369 F2 should work even if "Hide Text Hover" is enabled
- enable "Hide Text Hover" - position the cursor on a type - press F2 observe: nothing happens although I explicitly requested JavaDoc help.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/text/JavaSourceViewerConfiguration.java
/**
	 * Returns the Java multiline comment scanner for this configuration.
	 *
	 * @return the Java multiline comment scanner
	 */
	protected RuleBasedScanner getMultilineCommentScanner() {
		return fJavaTextTools.getMultilineCommentScanner();
	}
	
	/**
	 * Returns the Java singleline comment scanner for this configuration.
	 *
	 * @return the Java singleline comment scanner
	 */
	protected RuleBasedScanner getSinglelineCommentScanner() {
		return fJavaTextTools.getSinglelineCommentScanner();
	}
	
	/**
	 * Returns the JavaDoc scanner for this configuration.
	 *
	 * @return the JavaDoc scanner
	 */
	protected RuleBasedScanner getJavaDocScanner() {
		return fJavaTextTools.getJavaDocScanner();
	}
	
	/**
	 * Returns the color manager for this configuration.