The CERT® Oracle® Secure Coding Standard for Java™

Chapter 13. Thread-Safety Miscellaneous (TSM)

Rules

Risk Assessment Summary

TSM00-J. Do not override thread-safe methods with methods that are not thread-safe

Overriding thread-safe methods with methods that are unsafe for concurrent use can result in improper synchronization when a client that depends on the thread-safety promised by the parent inadvertently operates on an instance of the subclass. For example, an overridden synchronized method’s contract can be violated when a subclass provides an implementation that is unsafe for concurrent ...