https://www.graalvm.org/ 
class com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup extends com.oracle.truffle.api.instrumentation.ProbeNode$InstrumentableChildVisitor
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup
  super_class: com.oracle.truffle.api.instrumentation.ProbeNode$InstrumentableChildVisitor
{
  com.oracle.truffle.api.instrumentation.EventContext[] foundContexts;
    descriptor: [Lcom/oracle/truffle/api/instrumentation/EventContext;
    flags: (0x0000) 

  int index;
    descriptor: I
    flags: (0x0000) 

  static final boolean $assertionsDisabled;
    descriptor: Z
    flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 724
            ldc Lcom/oracle/truffle/api/instrumentation/ProbeNode;
            invokevirtual java.lang.Class.desiredAssertionStatus:()Z
            ifne 1
            iconst_1
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_0
      StackMap locals:
      StackMap stack: int
         2: putstatic com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup.$assertionsDisabled:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>(com.oracle.truffle.api.instrumentation.EventBinding$Source<?>, com.oracle.truffle.api.nodes.RootNode, java.util.Set<java.lang.Class<?>>, com.oracle.truffle.api.nodes.Node, com.oracle.truffle.api.source.SourceSection, );
    descriptor: (Lcom/oracle/truffle/api/instrumentation/EventBinding$Source;Lcom/oracle/truffle/api/nodes/RootNode;Ljava/util/Set;Lcom/oracle/truffle/api/nodes/Node;Lcom/oracle/truffle/api/source/SourceSection;I)V
    flags: (0x0000) 
    Code:
      stack=6, locals=7, args_size=7
        start local 0 // com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup this
        start local 1 // com.oracle.truffle.api.instrumentation.EventBinding$Source binding
        start local 2 // com.oracle.truffle.api.nodes.RootNode rootNode
        start local 3 // java.util.Set providedTags
        start local 4 // com.oracle.truffle.api.nodes.Node instrumentedNode
        start local 5 // com.oracle.truffle.api.source.SourceSection instrumentedNodeSourceSection
        start local 6 // int childrenCount
         0: .line 730
            aload 0 /* this */
            aload 1 /* binding */
            aload 2 /* rootNode */
            aload 3 /* providedTags */
            aload 4 /* instrumentedNode */
            aload 5 /* instrumentedNodeSourceSection */
            invokespecial com.oracle.truffle.api.instrumentation.ProbeNode$InstrumentableChildVisitor.<init>:(Lcom/oracle/truffle/api/instrumentation/EventBinding$Source;Lcom/oracle/truffle/api/nodes/RootNode;Ljava/util/Set;Lcom/oracle/truffle/api/nodes/Node;Lcom/oracle/truffle/api/source/SourceSection;)V
         1: .line 731
            aload 0 /* this */
            iload 6 /* childrenCount */
            anewarray com.oracle.truffle.api.instrumentation.EventContext
            putfield com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup.foundContexts:[Lcom/oracle/truffle/api/instrumentation/EventContext;
         2: .line 732
            return
        end local 6 // int childrenCount
        end local 5 // com.oracle.truffle.api.source.SourceSection instrumentedNodeSourceSection
        end local 4 // com.oracle.truffle.api.nodes.Node instrumentedNode
        end local 3 // java.util.Set providedTags
        end local 2 // com.oracle.truffle.api.nodes.RootNode rootNode
        end local 1 // com.oracle.truffle.api.instrumentation.EventBinding$Source binding
        end local 0 // com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup this
      LocalVariableTable:
        Start  End  Slot                           Name  Signature
            0    3     0                           this  Lcom/oracle/truffle/api/instrumentation/ProbeNode$InputChildContextLookup;
            0    3     1                        binding  Lcom/oracle/truffle/api/instrumentation/EventBinding$Source<*>;
            0    3     2                       rootNode  Lcom/oracle/truffle/api/nodes/RootNode;
            0    3     3                   providedTags  Ljava/util/Set<Ljava/lang/Class<*>;>;
            0    3     4               instrumentedNode  Lcom/oracle/truffle/api/nodes/Node;
            0    3     5  instrumentedNodeSourceSection  Lcom/oracle/truffle/api/source/SourceSection;
            0    3     6                  childrenCount  I
    Signature: (Lcom/oracle/truffle/api/instrumentation/EventBinding$Source<*>;Lcom/oracle/truffle/api/nodes/RootNode;Ljava/util/Set<Ljava/lang/Class<*>;>;Lcom/oracle/truffle/api/nodes/Node;Lcom/oracle/truffle/api/source/SourceSection;I)V
    MethodParameters:
                               Name  Flags
      binding                        
      rootNode                       
      providedTags                   
      instrumentedNode               
      instrumentedNodeSourceSection  
      childrenCount                  

  protected boolean visitChild(com.oracle.truffle.api.nodes.Node);
    descriptor: (Lcom/oracle/truffle/api/nodes/Node;)Z
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=4, args_size=2
        start local 0 // com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup this
        start local 1 // com.oracle.truffle.api.nodes.Node child
         0: .line 736
            aload 1 /* child */
            invokevirtual com.oracle.truffle.api.nodes.Node.getParent:()Lcom/oracle/truffle/api/nodes/Node;
            astore 2 /* parent */
        start local 2 // com.oracle.truffle.api.nodes.Node parent
         1: .line 737
            aload 2 /* parent */
            instanceof com.oracle.truffle.api.instrumentation.InstrumentableNode$WrapperNode
            ifeq 9
         2: .line 738
            aload 2 /* parent */
            checkcast com.oracle.truffle.api.instrumentation.InstrumentableNode$WrapperNode
            invokeinterface com.oracle.truffle.api.instrumentation.InstrumentableNode$WrapperNode.getProbeNode:()Lcom/oracle/truffle/api/instrumentation/ProbeNode;
            astore 3 /* probe */
        start local 3 // com.oracle.truffle.api.instrumentation.ProbeNode probe
         3: .line 739
            aload 0 /* this */
            getfield com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup.index:I
            aload 0 /* this */
            getfield com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup.foundContexts:[Lcom/oracle/truffle/api/instrumentation/EventContext;
            arraylength
            if_icmpge 6
         4: .line 740
            aload 0 /* this */
            getfield com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup.foundContexts:[Lcom/oracle/truffle/api/instrumentation/EventContext;
            aload 0 /* this */
            getfield com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup.index:I
            aload 3 /* probe */
            getfield com.oracle.truffle.api.instrumentation.ProbeNode.context:Lcom/oracle/truffle/api/instrumentation/EventContext;
            aastore
         5: .line 741
            goto 12
         6: .line 742
      StackMap locals: com.oracle.truffle.api.nodes.Node com.oracle.truffle.api.instrumentation.ProbeNode
      StackMap stack:
            getstatic com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup.$assertionsDisabled:Z
            ifne 7
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         7: .line 743
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aconst_null
            putfield com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup.foundContexts:[Lcom/oracle/truffle/api/instrumentation/EventContext;
         8: .line 744
            iconst_0
            ireturn
        end local 3 // com.oracle.truffle.api.instrumentation.ProbeNode probe
         9: .line 748
      StackMap locals:
      StackMap stack:
            getstatic com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup.$assertionsDisabled:Z
            ifne 10
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
        10: .line 749
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aconst_null
            putfield com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup.foundContexts:[Lcom/oracle/truffle/api/instrumentation/EventContext;
        11: .line 750
            iconst_0
            ireturn
        12: .line 752
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            dup
            getfield com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup.index:I
            iconst_1
            iadd
            putfield com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup.index:I
        13: .line 753
            iconst_1
            ireturn
        end local 2 // com.oracle.truffle.api.nodes.Node parent
        end local 1 // com.oracle.truffle.api.nodes.Node child
        end local 0 // com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   14     0    this  Lcom/oracle/truffle/api/instrumentation/ProbeNode$InputChildContextLookup;
            0   14     1   child  Lcom/oracle/truffle/api/nodes/Node;
            1   14     2  parent  Lcom/oracle/truffle/api/nodes/Node;
            3    9     3   probe  Lcom/oracle/truffle/api/instrumentation/ProbeNode;
    MethodParameters:
       Name  Flags
      child  
}
SourceFile: "ProbeNode.java"
NestHost: com.oracle.truffle.api.instrumentation.ProbeNode
InnerClasses:
  final Source = com.oracle.truffle.api.instrumentation.EventBinding$Source of com.oracle.truffle.api.instrumentation.EventBinding
  public abstract WrapperNode = com.oracle.truffle.api.instrumentation.InstrumentableNode$WrapperNode of com.oracle.truffle.api.instrumentation.InstrumentableNode
  private InputChildContextLookup = com.oracle.truffle.api.instrumentation.ProbeNode$InputChildContextLookup of com.oracle.truffle.api.instrumentation.ProbeNode
  private abstract InstrumentableChildVisitor = com.oracle.truffle.api.instrumentation.ProbeNode$InstrumentableChildVisitor of com.oracle.truffle.api.instrumentation.ProbeNode