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Unsynchronized method overrides 'synchronized' method

Reports non-synchronized methods overriding synchronized methods.

The overridden method will not be automatically synchronized if the superclass method is declared as synchronized. This may result in unexpected race conditions when using the subclass.

Example:

class Super { synchronized void process() {} } class Sub extends Super { // Unsynchronized method 'process()' overrides synchronized method void process() {} }

Locating this inspection

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.

NonSynchronizedMethodOverridesSynchronizedMethod
Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Java | Threading issues

Availability

By default bundled with

IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,

Can be installed with plugin

Java, 241.18072

Last modified: 18 June 2024