https://www.graalvm.org/ 
class com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntryComparator implements java.util.Comparator<com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntry>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntryComparator
  super_class: java.lang.Object
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntryComparator this
         0: .line 700
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntryComparator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/graal/pointsto/BigBang$ConstantObjectsProfiler$ConstantCounterEntryComparator;

  public int compare(com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntry, com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntry);
    descriptor: (Lcom/oracle/graal/pointsto/BigBang$ConstantObjectsProfiler$ConstantCounterEntry;Lcom/oracle/graal/pointsto/BigBang$ConstantObjectsProfiler$ConstantCounterEntry;)I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntryComparator this
        start local 1 // com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntry o1
        start local 2 // com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntry o2
         0: .line 704
            aload 2 /* o2 */
            getfield com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntry.counter:I
            aload 1 /* o1 */
            getfield com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntry.counter:I
            invokestatic java.lang.Integer.compare:(II)I
            ireturn
        end local 2 // com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntry o2
        end local 1 // com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntry o1
        end local 0 // com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntryComparator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/graal/pointsto/BigBang$ConstantObjectsProfiler$ConstantCounterEntryComparator;
            0    1     1    o1  Lcom/oracle/graal/pointsto/BigBang$ConstantObjectsProfiler$ConstantCounterEntry;
            0    1     2    o2  Lcom/oracle/graal/pointsto/BigBang$ConstantObjectsProfiler$ConstantCounterEntry;
    MethodParameters:
      Name  Flags
      o1    
      o2    

  public int compare(java.lang.Object, java.lang.Object);
    descriptor: (Ljava/lang/Object;Ljava/lang/Object;)I
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=3, locals=3, args_size=3
         0: .line 1
            aload 0
            aload 1
            checkcast com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntry
            aload 2
            checkcast com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntry
            invokevirtual com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntryComparator.compare:(Lcom/oracle/graal/pointsto/BigBang$ConstantObjectsProfiler$ConstantCounterEntry;Lcom/oracle/graal/pointsto/BigBang$ConstantObjectsProfiler$ConstantCounterEntry;)I
            ireturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Ljava/lang/Object;Ljava/util/Comparator<Lcom/oracle/graal/pointsto/BigBang$ConstantObjectsProfiler$ConstantCounterEntry;>;
SourceFile: "BigBang.java"
NestHost: com.oracle.graal.pointsto.BigBang
InnerClasses:
  public ConstantObjectsProfiler = com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler of com.oracle.graal.pointsto.BigBang
  ConstantCounterEntry = com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntry of com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler
  ConstantCounterEntryComparator = com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler$ConstantCounterEntryComparator of com.oracle.graal.pointsto.BigBang$ConstantObjectsProfiler