Java
'ThreadLocal.set()' with null as an argument
Info
New
Last modified: 03 December 2024 Reports java.lang.ThreadLocal.set()
with null as an argument.
This call does not free the resources, and it may cause a memory leak.
It may happen because:
Firstly,
ThreadLocal.set(null)
finds a map associated with the current Thread. If there is no such a map, it will be createdIt sets key and value:
map.set(this, value)
, wherethis
refers to instance ofThreadLocal
java.lang.ThreadLocal.remove()
should be used to free the resources.
Example:
ThreadLocal<Integer> threadLocal = new ThreadLocal<>();
threadLocal.set(null);
After the quick-fix is applied:
threadLocal.remove();
- By ID
Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.
ThreadLocalSetWithNull
New in 2023.2
Inspection Details | |
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By default bundled with: | |
Can be installed with plugin: | Java, 243.23126 |
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