https://www.graalvm.org/ 
class com.oracle.truffle.tools.profiler.CPUSamplerSnippets
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.truffle.tools.profiler.CPUSamplerSnippets
  super_class: java.lang.Object
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.tools.profiler.CPUSamplerSnippets this
         0: .line 755
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.oracle.truffle.tools.profiler.CPUSamplerSnippets this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/tools/profiler/CPUSamplerSnippets;

  public void example();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=7, args_size=1
        start local 0 // com.oracle.truffle.tools.profiler.CPUSamplerSnippets this
         0: .line 761
            iconst_0
            anewarray java.lang.String
            invokestatic org.graalvm.polyglot.Context.create:([Ljava/lang/String;)Lorg/graalvm/polyglot/Context;
            astore 1 /* context */
        start local 1 // org.graalvm.polyglot.Context context
         1: .line 763
            aload 1 /* context */
            invokevirtual org.graalvm.polyglot.Context.getEngine:()Lorg/graalvm/polyglot/Engine;
            invokestatic com.oracle.truffle.tools.profiler.CPUSampler.find:(Lorg/graalvm/polyglot/Engine;)Lcom/oracle/truffle/tools/profiler/CPUSampler;
            astore 2 /* sampler */
        start local 2 // com.oracle.truffle.tools.profiler.CPUSampler sampler
         2: .line 764
            aload 2 /* sampler */
            iconst_1
            invokevirtual com.oracle.truffle.tools.profiler.CPUSampler.setCollecting:(Z)V
         3: .line 765
            aload 1 /* context */
            ldc "..."
            ldc "..."
            invokevirtual org.graalvm.polyglot.Context.eval:(Ljava/lang/String;Ljava/lang/CharSequence;)Lorg/graalvm/polyglot/Value;
            pop
         4: .line 766
            aload 2 /* sampler */
            iconst_0
            invokevirtual com.oracle.truffle.tools.profiler.CPUSampler.setCollecting:(Z)V
         5: .line 767
            aload 2 /* sampler */
            invokevirtual com.oracle.truffle.tools.profiler.CPUSampler.close:()V
         6: .line 770
            aload 2 /* sampler */
            invokevirtual com.oracle.truffle.tools.profiler.CPUSampler.getThreadToNodesMap:()Ljava/util/Map;
            invokeinterface java.util.Map.values:()Ljava/util/Collection;
            invokeinterface java.util.Collection.iterator:()Ljava/util/Iterator;
            astore 4
            goto 13
      StackMap locals: com.oracle.truffle.tools.profiler.CPUSamplerSnippets org.graalvm.polyglot.Context com.oracle.truffle.tools.profiler.CPUSampler top java.util.Iterator
      StackMap stack:
         7: aload 4
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast java.util.Collection
            astore 3 /* nodes */
        start local 3 // java.util.Collection nodes
         8: .line 771
            aload 3 /* nodes */
            invokeinterface java.util.Collection.iterator:()Ljava/util/Iterator;
            astore 6
            goto 12
      StackMap locals: com.oracle.truffle.tools.profiler.CPUSamplerSnippets org.graalvm.polyglot.Context com.oracle.truffle.tools.profiler.CPUSampler java.util.Collection java.util.Iterator top java.util.Iterator
      StackMap stack:
         9: aload 6
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast com.oracle.truffle.tools.profiler.ProfilerNode
            astore 5 /* node */
        start local 5 // com.oracle.truffle.tools.profiler.ProfilerNode node
        10: .line 772
            aload 5 /* node */
            invokevirtual com.oracle.truffle.tools.profiler.ProfilerNode.getRootName:()Ljava/lang/String;
            pop
        11: .line 773
            aload 5 /* node */
            invokevirtual com.oracle.truffle.tools.profiler.ProfilerNode.getPayload:()Ljava/lang/Object;
            checkcast com.oracle.truffle.tools.profiler.CPUSampler$Payload
            invokevirtual com.oracle.truffle.tools.profiler.CPUSampler$Payload.getSelfHitCount:()I
            pop
        end local 5 // com.oracle.truffle.tools.profiler.ProfilerNode node
        12: .line 771
      StackMap locals:
      StackMap stack:
            aload 6
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 9
        end local 3 // java.util.Collection nodes
        13: .line 769
      StackMap locals: com.oracle.truffle.tools.profiler.CPUSamplerSnippets org.graalvm.polyglot.Context com.oracle.truffle.tools.profiler.CPUSampler top java.util.Iterator
      StackMap stack:
            aload 4
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 7
        14: .line 779
            return
        end local 2 // com.oracle.truffle.tools.profiler.CPUSampler sampler
        end local 1 // org.graalvm.polyglot.Context context
        end local 0 // com.oracle.truffle.tools.profiler.CPUSamplerSnippets this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0   15     0     this  Lcom/oracle/truffle/tools/profiler/CPUSamplerSnippets;
            1   15     1  context  Lorg/graalvm/polyglot/Context;
            2   15     2  sampler  Lcom/oracle/truffle/tools/profiler/CPUSampler;
            8   13     3    nodes  Ljava/util/Collection<Lcom/oracle/truffle/tools/profiler/ProfilerNode<Lcom/oracle/truffle/tools/profiler/CPUSampler$Payload;>;>;
           10   12     5     node  Lcom/oracle/truffle/tools/profiler/ProfilerNode<Lcom/oracle/truffle/tools/profiler/CPUSampler$Payload;>;
}
SourceFile: "CPUSampler.java"
InnerClasses:
  public final Payload = com.oracle.truffle.tools.profiler.CPUSampler$Payload of com.oracle.truffle.tools.profiler.CPUSampler