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2024.3

Suspicious 'InvocationHandler' implementation

Warning
New
Last modified: 03 December 2024

Reports implementations of InvocationHandler that do not proxy standard Object methods like hashCode(), equals(), and toString().

Failing to handle these methods might cause unexpected problems upon calling them on a proxy instance.

Example:

This code snippet is designed to only proxy the Runnable.run() method. However, calls to any Object methods, like hashCode(), are proxied as well. This can lead to problems like a NullPointerException, for example, when adding myProxy to a HashSet.

New in 2020.2