Synchronization on local variable or method parameter

Reports synchronization on a local variable or parameter.

It is very difficult to guarantee correct operation when such synchronization is used. It may be possible to improve such code, for example, by controlling access using a synchronized wrapper class or by synchronizing on a field.

Example:

  void bar() {
    final Object lock = new Object();
    synchronized (lock) { }
  }

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.

SynchronizationOnLocalVariableOrMethodParameter

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