Example:

  import javax.annotation.concurrent.Immutable;
  @Immutable
  class Foo {
    String bar = "foo";
  }

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