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. 
class com.google.common.util.concurrent.Striped$PaddedSemaphore extends java.util.concurrent.Semaphore
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.google.common.util.concurrent.Striped$PaddedSemaphore
  super_class: java.util.concurrent.Semaphore
{
  long unused1;
    descriptor: J
    flags: (0x0000) 

  long unused2;
    descriptor: J
    flags: (0x0000) 

  long unused3;
    descriptor: J
    flags: (0x0000) 

  void <init>(int);
    descriptor: (I)V
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.google.common.util.concurrent.Striped$PaddedSemaphore this
        start local 1 // int permits
         0: .line 582
            aload 0 /* this */
            iload 1 /* permits */
            iconst_0
            invokespecial java.util.concurrent.Semaphore.<init>:(IZ)V
         1: .line 583
            return
        end local 1 // int permits
        end local 0 // com.google.common.util.concurrent.Striped$PaddedSemaphore this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    2     0     this  Lcom/google/common/util/concurrent/Striped$PaddedSemaphore;
            0    2     1  permits  I
    MethodParameters:
         Name  Flags
      permits  
}
SourceFile: "Striped.java"
NestHost: com.google.common.util.concurrent.Striped
InnerClasses:
  private PaddedSemaphore = com.google.common.util.concurrent.Striped$PaddedSemaphore of com.google.common.util.concurrent.Striped