Method with single 'synchronized' block can be replaced with 'synchronized' method

Reports methods whose body contains a single synchronized statement. A lock expression for this synchronized statement must be equal to this for instance methods or [ClassName].class for static methods.

To improve readability of such methods, you can remove the synchronized wrapper and mark the method as synchronized.

Example:

public int generateInt(int x) {
  synchronized (this) {
    return 1;
  }
}

After the quick-fix is applied:

public synchronized int generateInt(int x) {
  return 1;
}

Inspection Details
Available in:	IntelliJ IDEA 2023.3, Qodana for JVM 2023.3
Plugin:	Java, 233.SNAPSHOT

Last modified: 13 July 2023