Nested 'synchronized' statement

Reports nested synchronized statements. It is recommended to avoid nested synchronization if possible, because in some cases it may lead to a deadlock.

Example:

  synchronized (lockA){
    //thread 1 is waiting for lockB
    synchronized (lockB){ //warning
    }
  }
  ...
  synchronized (lockB) {
    //thread 2 is waiting for lockA
    synchronized (lockA) { //warning
    }
  }

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.

NestedSynchronizedStatement

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

Inspection Details
By default bundled with:	IntelliJ IDEA 2024.2, Qodana for JVM 2024.2,
Can be installed with plugin:	Java, 242.22892

Last modified: 11 September 2024