https://www.graalvm.org/ 
class org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode extends com.oracle.truffle.api.nodes.RootNode
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode
  super_class: com.oracle.truffle.api.nodes.RootNode
{
  private org.graalvm.tools.insight.test.InsightObjectFactory$ValueNode node;
    descriptor: Lorg/graalvm/tools/insight/test/InsightObjectFactory$ValueNode;
    flags: (0x0002) ACC_PRIVATE
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.nodes.Node$Child()

  private final java.lang.String scriptName;
    descriptor: Ljava/lang/String;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final com.oracle.truffle.api.source.Source source;
    descriptor: Lcom/oracle/truffle/api/source/Source;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  void <init>(com.oracle.truffle.api.TruffleLanguage<?>, java.lang.String, com.oracle.truffle.api.source.Source);
    descriptor: (Lcom/oracle/truffle/api/TruffleLanguage;Ljava/lang/String;Lcom/oracle/truffle/api/source/Source;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=4, args_size=4
        start local 0 // org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode this
        start local 1 // com.oracle.truffle.api.TruffleLanguage tl
        start local 2 // java.lang.String scriptName
        start local 3 // com.oracle.truffle.api.source.Source source
         0: .line 111
            aload 0 /* this */
            aload 1 /* tl */
            invokespecial com.oracle.truffle.api.nodes.RootNode.<init>:(Lcom/oracle/truffle/api/TruffleLanguage;)V
         1: .line 112
            aload 0 /* this */
            aload 2 /* scriptName */
            putfield org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode.scriptName:Ljava/lang/String;
         2: .line 113
            aload 0 /* this */
            aload 3 /* source */
            putfield org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode.source:Lcom/oracle/truffle/api/source/Source;
         3: .line 114
            aload 0 /* this */
            new org.graalvm.tools.insight.test.InsightObjectFactory$ValueNode
            dup
            invokespecial org.graalvm.tools.insight.test.InsightObjectFactory$ValueNode.<init>:()V
            putfield org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode.node:Lorg/graalvm/tools/insight/test/InsightObjectFactory$ValueNode;
         4: .line 115
            return
        end local 3 // com.oracle.truffle.api.source.Source source
        end local 2 // java.lang.String scriptName
        end local 1 // com.oracle.truffle.api.TruffleLanguage tl
        end local 0 // org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    5     0        this  Lorg/graalvm/tools/insight/test/InsightObjectFactory$AgentRootNode;
            0    5     1          tl  Lcom/oracle/truffle/api/TruffleLanguage<*>;
            0    5     2  scriptName  Ljava/lang/String;
            0    5     3      source  Lcom/oracle/truffle/api/source/Source;
    Signature: (Lcom/oracle/truffle/api/TruffleLanguage<*>;Ljava/lang/String;Lcom/oracle/truffle/api/source/Source;)V
    MethodParameters:
            Name  Flags
      tl          
      scriptName  
      source      

  public java.lang.Object execute(com.oracle.truffle.api.frame.VirtualFrame);
    descriptor: (Lcom/oracle/truffle/api/frame/VirtualFrame;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode this
        start local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
         0: .line 119
            ldc "agent.px"
            aload 0 /* this */
            getfield org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode.scriptName:Ljava/lang/String;
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 4
         1: .line 120
            ldc "No agent object set yet"
            getstatic org.graalvm.tools.insight.test.InsightObjectFactory.insightObject:Lcom/oracle/truffle/api/interop/TruffleObject;
            invokestatic org.junit.Assert.assertNull:(Ljava/lang/String;Ljava/lang/Object;)V
         2: .line 121
            aload 1 /* frame */
            invokeinterface com.oracle.truffle.api.frame.VirtualFrame.getArguments:()[Ljava/lang/Object;
            iconst_0
            aaload
            checkcast com.oracle.truffle.api.interop.TruffleObject
            putstatic org.graalvm.tools.insight.test.InsightObjectFactory.insightObject:Lcom/oracle/truffle/api/interop/TruffleObject;
         3: .line 122
            getstatic org.graalvm.tools.insight.test.InsightObjectFactory.insightObject:Lcom/oracle/truffle/api/interop/TruffleObject;
            areturn
         4: .line 124
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode.node:Lorg/graalvm/tools/insight/test/InsightObjectFactory$ValueNode;
            aload 1 /* frame */
            invokevirtual org.graalvm.tools.insight.test.InsightObjectFactory$ValueNode.executeToFinishInitializationOfAgentObject:(Lcom/oracle/truffle/api/frame/VirtualFrame;)V
         5: .line 125
            getstatic org.graalvm.tools.insight.test.InsightObjectFactory.insightObject:Lcom/oracle/truffle/api/interop/TruffleObject;
            areturn
        end local 1 // com.oracle.truffle.api.frame.VirtualFrame frame
        end local 0 // org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    6     0   this  Lorg/graalvm/tools/insight/test/InsightObjectFactory$AgentRootNode;
            0    6     1  frame  Lcom/oracle/truffle/api/frame/VirtualFrame;
    MethodParameters:
       Name  Flags
      frame  

  public com.oracle.truffle.api.source.SourceSection getSourceSection();
    descriptor: ()Lcom/oracle/truffle/api/source/SourceSection;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode this
         0: .line 131
            aload 0 /* this */
            getfield org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode.source:Lcom/oracle/truffle/api/source/Source;
            iconst_0
            aload 0 /* this */
            getfield org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode.source:Lcom/oracle/truffle/api/source/Source;
            invokevirtual com.oracle.truffle.api.source.Source.getLength:()I
            invokevirtual com.oracle.truffle.api.source.Source.createSection:(II)Lcom/oracle/truffle/api/source/SourceSection;
            areturn
        end local 0 // org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/graalvm/tools/insight/test/InsightObjectFactory$AgentRootNode;
}
SourceFile: "InsightObjectFactory.java"
NestHost: org.graalvm.tools.insight.test.InsightObjectFactory
InnerClasses:
  public abstract Child = com.oracle.truffle.api.nodes.Node$Child of com.oracle.truffle.api.nodes.Node
  private AgentRootNode = org.graalvm.tools.insight.test.InsightObjectFactory$AgentRootNode of org.graalvm.tools.insight.test.InsightObjectFactory
  ValueNode = org.graalvm.tools.insight.test.InsightObjectFactory$ValueNode of org.graalvm.tools.insight.test.InsightObjectFactory