https://www.graalvm.org/ 
public abstract class com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode extends com.oracle.truffle.js.nodes.JavaScriptNode implements com.oracle.truffle.js.nodes.ReadNode
  minor version: 0
  major version: 59
  flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
  this_class: com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode
  super_class: com.oracle.truffle.js.nodes.JavaScriptNode
{
  protected final java.lang.Object identifier;
    descriptor: Ljava/lang/Object;
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL

  public void <init>(java.lang.Object);
    descriptor: (Ljava/lang/Object;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode this
        start local 1 // java.lang.Object identifier
         0: .line 64
            aload 0 /* this */
            invokespecial com.oracle.truffle.js.nodes.JavaScriptNode.<init>:()V
         1: .line 65
            aload 0 /* this */
            aload 1 /* identifier */
            putfield com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode.identifier:Ljava/lang/Object;
         2: .line 66
            return
        end local 1 // java.lang.Object identifier
        end local 0 // com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    3     0        this  Lcom/oracle/truffle/js/nodes/access/LazyReadFrameSlotNode;
            0    3     1  identifier  Ljava/lang/Object;
    MethodParameters:
            Name  Flags
      identifier  

  public java.lang.Object getIdentifier();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode this
         0: .line 69
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode.identifier:Ljava/lang/Object;
            areturn
        end local 0 // com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/nodes/access/LazyReadFrameSlotNode;

  public static com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode create(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Lcom/oracle/truffle/js/nodes/access/LazyReadFrameSlotNode;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // java.lang.Object identifier
         0: .line 73
            new com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode$LazyReadFrameSlotUninitNode
            dup
            aload 0 /* identifier */
            invokespecial com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode$LazyReadFrameSlotUninitNode.<init>:(Ljava/lang/Object;)V
            areturn
        end local 0 // java.lang.Object identifier
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    1     0  identifier  Ljava/lang/Object;
    MethodParameters:
            Name  Flags
      identifier  

  protected com.oracle.truffle.js.nodes.JavaScriptNode copyUninitialized(java.util.Set<java.lang.Class<? extends com.oracle.truffle.api.instrumentation.Tag>>);
    descriptor: (Ljava/util/Set;)Lcom/oracle/truffle/js/nodes/JavaScriptNode;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=1, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode this
        start local 1 // java.util.Set materializedTags
         0: .line 78
            aload 0 /* this */
            invokevirtual com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode.copy:()Lcom/oracle/truffle/js/nodes/JavaScriptNode;
            areturn
        end local 1 // java.util.Set materializedTags
        end local 0 // com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode this
      LocalVariableTable:
        Start  End  Slot              Name  Signature
            0    1     0              this  Lcom/oracle/truffle/js/nodes/access/LazyReadFrameSlotNode;
            0    1     1  materializedTags  Ljava/util/Set<Ljava/lang/Class<+Lcom/oracle/truffle/api/instrumentation/Tag;>;>;
    Signature: (Ljava/util/Set<Ljava/lang/Class<+Lcom/oracle/truffle/api/instrumentation/Tag;>;>;)Lcom/oracle/truffle/js/nodes/JavaScriptNode;
    MethodParameters:
                  Name  Flags
      materializedTags  
}
SourceFile: "LazyReadFrameSlotNode.java"
NestMembers:
  com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode$LazyReadFrameSlotUninitNode
InnerClasses:
  private final LazyReadFrameSlotUninitNode = com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode$LazyReadFrameSlotUninitNode of com.oracle.truffle.js.nodes.access.LazyReadFrameSlotNode