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'ThreadLocal' field not declared 'static final'

Reports fields of type java.lang.ThreadLocal that are not declared static final.

In the most common case, a java.lang.ThreadLocal instance associates state with a thread. A non-static non-final java.lang.ThreadLocal field associates state with an instance-thread combination. This is usually unnecessary and quite often is a bug that can cause memory leaks and incorrect behavior.

A quick-fix is suggested to make the field static final.


private ThreadLocal tl = ThreadLocal.withInitial(() -> Boolean.TRUE);

Inspection Details

Available in:

IntelliJ IDEA 2023.3, Qodana for JVM 2023.3


Java, 233.SNAPSHOT

Last modified: 13 July 2023