field= (IField)WorkingCopyUtil.getWorkingCopyIfExists(field);
	private ASTNode[] getFieldReferenceNodes(VariableDeclaration varDeclaration, IProgressMonitor pm) throws JavaModelException{		Assert.isTrue(varDeclaration.resolveBinding().isField());		IField field= Binding2JavaModel.find(varDeclaration.resolveBinding(), getCompilationUnit(varDeclaration).getJavaProject());		if (field == null)			return new ASTNode[0];		return getReferenceNodes(field, pm);		}