https://github.com/google/guava/guava: Guava is a suite of core and expanded libraries that include utility classes, google's collections, io classes, and much much more. 
public interface com.google.common.util.concurrent.CycleDetectingLockFactory$Policy
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.google.common.util.concurrent.CycleDetectingLockFactory$Policy
  super_class: java.lang.Object
{
  public abstract void handlePotentialDeadlock(com.google.common.util.concurrent.CycleDetectingLockFactory$PotentialDeadlockException);
    descriptor: (Lcom/google/common/util/concurrent/CycleDetectingLockFactory$PotentialDeadlockException;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
           Name  Flags
      exception  
}
SourceFile: "CycleDetectingLockFactory.java"
NestHost: com.google.common.util.concurrent.CycleDetectingLockFactory
InnerClasses:
  public abstract Policy = com.google.common.util.concurrent.CycleDetectingLockFactory$Policy of com.google.common.util.concurrent.CycleDetectingLockFactory
  public final PotentialDeadlockException = com.google.common.util.concurrent.CycleDetectingLockFactory$PotentialDeadlockException of com.google.common.util.concurrent.CycleDetectingLockFactory
    RuntimeInvisibleAnnotations: 
      com.google.common.annotations.Beta()