UnknownGuard

Reports @GuardedBy annotations in which the specified guarding field is unknown.

Example:

private Object state;

    @GuardedBy("lock") //unknown guard reference
    public void bar() {
        state = new Object();
    }

Supported @GuardedBy annotations are:

• net.jcip.annotations.GuardedBy
• javax.annotation.concurrent.GuardedBy
• org.apache.http.annotation.GuardedBy
• com.android.annotations.concurrency.GuardedBy
• androidx.annotation.GuardedBy
• com.google.errorprone.annotations.concurrent.GuardedBy