What are the examples of Decorator design pattern in JDK?

I want to know where Decorator Design Pattern is being used in JDK. I think below methods of java.util.Collections class are coming under that category..

• synchronizedList()
• synchronizedMap()
• synchronizedSet()
• unmodifiableSet()
• unmodifiableMap()
• unmodifiableList()

Please let me know some other implementation and correct if I am wrong.