Bug 75711 AstProvider should not create AST if requested by SelectionListenerWithASTManager
3.1 M2 If SelectionListenerWithASTManager waits for an AST and the editor closes we should not create an AST for that one but return null instead.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
}
		/**
		 * {@inheritDoc}
		 */
		public double getDouble(String name) {
			double value= DOUBLE_DEFAULT_DEFAULT;
			String s= (String) fOptions.get(name);
			if (s != null) {
				try {
					value= new Double(s).doubleValue();
				} catch (NumberFormatException e) {
				}
			}
			return value;
		}
		/**
		 * {@inheritDoc}
		 */
		public float getFloat(String name) {
			float value= FLOAT_DEFAULT_DEFAULT;
			String s= (String) fOptions.get(name);
			if (s != null) {
				try {
					value= new Float(s).floatValue();
				} catch (NumberFormatException e) {
				}
			}
			return value;
		}
		/**