https://www.graalvm.org/ 
class com.oracle.truffle.nfi.ConvertTypeNode$OptimizedConvertTypeNode extends com.oracle.truffle.nfi.ConvertTypeNode
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.truffle.nfi.ConvertTypeNode$OptimizedConvertTypeNode
  super_class: com.oracle.truffle.nfi.ConvertTypeNode
{
  final com.oracle.truffle.nfi.NFIType$TypeCachedState typeState;
    descriptor: Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
    flags: (0x0010) ACC_FINAL

  com.oracle.truffle.nfi.ConvertTypeNode$ConvertTypeImplNode convert;
    descriptor: Lcom/oracle/truffle/nfi/ConvertTypeNode$ConvertTypeImplNode;
    flags: (0x0000) 
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.nodes.Node$Child()

  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 65
            ldc Lcom/oracle/truffle/nfi/ConvertTypeNode;
            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.nfi.ConvertTypeNode$OptimizedConvertTypeNode.$assertionsDisabled:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>(com.oracle.truffle.nfi.NFIType$TypeCachedState, com.oracle.truffle.nfi.ConvertTypeNode$ConvertTypeImplNode);
    descriptor: (Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;Lcom/oracle/truffle/nfi/ConvertTypeNode$ConvertTypeImplNode;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.oracle.truffle.nfi.ConvertTypeNode$OptimizedConvertTypeNode this
        start local 1 // com.oracle.truffle.nfi.NFIType$TypeCachedState typeState
        start local 2 // com.oracle.truffle.nfi.ConvertTypeNode$ConvertTypeImplNode convert
         0: .line 70
            aload 0 /* this */
            invokespecial com.oracle.truffle.nfi.ConvertTypeNode.<init>:()V
         1: .line 71
            aload 0 /* this */
            aload 1 /* typeState */
            putfield com.oracle.truffle.nfi.ConvertTypeNode$OptimizedConvertTypeNode.typeState:Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
         2: .line 72
            aload 0 /* this */
            aload 2 /* convert */
            putfield com.oracle.truffle.nfi.ConvertTypeNode$OptimizedConvertTypeNode.convert:Lcom/oracle/truffle/nfi/ConvertTypeNode$ConvertTypeImplNode;
         3: .line 73
            return
        end local 2 // com.oracle.truffle.nfi.ConvertTypeNode$ConvertTypeImplNode convert
        end local 1 // com.oracle.truffle.nfi.NFIType$TypeCachedState typeState
        end local 0 // com.oracle.truffle.nfi.ConvertTypeNode$OptimizedConvertTypeNode this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    4     0       this  Lcom/oracle/truffle/nfi/ConvertTypeNode$OptimizedConvertTypeNode;
            0    4     1  typeState  Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
            0    4     2    convert  Lcom/oracle/truffle/nfi/ConvertTypeNode$ConvertTypeImplNode;
    MethodParameters:
           Name  Flags
      typeState  
      convert    

  java.lang.Object execute(com.oracle.truffle.nfi.NFIType, java.lang.Object);
    descriptor: (Lcom/oracle/truffle/nfi/NFIType;Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0000) 
    Code:
      stack=4, locals=3, args_size=3
        start local 0 // com.oracle.truffle.nfi.ConvertTypeNode$OptimizedConvertTypeNode this
        start local 1 // com.oracle.truffle.nfi.NFIType type
        start local 2 // java.lang.Object value
         0: .line 77
            getstatic com.oracle.truffle.nfi.ConvertTypeNode$OptimizedConvertTypeNode.$assertionsDisabled:Z
            ifne 1
            aload 0 /* this */
            getfield com.oracle.truffle.nfi.ConvertTypeNode$OptimizedConvertTypeNode.typeState:Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
            aload 1 /* type */
            getfield com.oracle.truffle.nfi.NFIType.cachedState:Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
            if_acmpeq 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 78
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.oracle.truffle.nfi.ConvertTypeNode$OptimizedConvertTypeNode.convert:Lcom/oracle/truffle/nfi/ConvertTypeNode$ConvertTypeImplNode;
            aload 0 /* this */
            getfield com.oracle.truffle.nfi.ConvertTypeNode$OptimizedConvertTypeNode.typeState:Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;
            aload 1 /* type */
            aload 2 /* value */
            invokevirtual com.oracle.truffle.nfi.ConvertTypeNode$ConvertTypeImplNode.execute:(Lcom/oracle/truffle/nfi/NFIType$TypeCachedState;Lcom/oracle/truffle/nfi/NFIType;Ljava/lang/Object;)Ljava/lang/Object;
            areturn
        end local 2 // java.lang.Object value
        end local 1 // com.oracle.truffle.nfi.NFIType type
        end local 0 // com.oracle.truffle.nfi.ConvertTypeNode$OptimizedConvertTypeNode this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    2     0   this  Lcom/oracle/truffle/nfi/ConvertTypeNode$OptimizedConvertTypeNode;
            0    2     1   type  Lcom/oracle/truffle/nfi/NFIType;
            0    2     2  value  Ljava/lang/Object;
    MethodParameters:
       Name  Flags
      type   
      value  
}
SourceFile: "ConvertTypeNode.java"
NestHost: com.oracle.truffle.nfi.ConvertTypeNode
InnerClasses:
  public abstract Child = com.oracle.truffle.api.nodes.Node$Child of com.oracle.truffle.api.nodes.Node
  abstract ConvertTypeImplNode = com.oracle.truffle.nfi.ConvertTypeNode$ConvertTypeImplNode of com.oracle.truffle.nfi.ConvertTypeNode
  OptimizedConvertTypeNode = com.oracle.truffle.nfi.ConvertTypeNode$OptimizedConvertTypeNode of com.oracle.truffle.nfi.ConvertTypeNode
  abstract TypeCachedState = com.oracle.truffle.nfi.NFIType$TypeCachedState of com.oracle.truffle.nfi.NFIType