https://www.graalvm.org/ 
final class com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType extends com.oracle.truffle.polyglot.HostExecuteNode$TypeCheckNode
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType
  super_class: com.oracle.truffle.polyglot.HostExecuteNode$TypeCheckNode
{
  final java.lang.Class<?> clazz;
    descriptor: Ljava/lang/Class;
    flags: (0x0010) ACC_FINAL
    Signature: Ljava/lang/Class<*>;

  void <init>(java.lang.Class<?>);
    descriptor: (Ljava/lang/Class;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType this
        start local 1 // java.lang.Class clazz
         0: .line 869
            aload 0 /* this */
            invokespecial com.oracle.truffle.polyglot.HostExecuteNode$TypeCheckNode.<init>:()V
         1: .line 870
            aload 0 /* this */
            aload 1 /* clazz */
            putfield com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType.clazz:Ljava/lang/Class;
         2: .line 871
            return
        end local 1 // java.lang.Class clazz
        end local 0 // com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0   this  Lcom/oracle/truffle/polyglot/HostExecuteNode$JavaObjectType;
            0    3     1  clazz  Ljava/lang/Class<*>;
    Signature: (Ljava/lang/Class<*>;)V
    MethodParameters:
       Name  Flags
      clazz  

  boolean execute(java.lang.Object, com.oracle.truffle.api.interop.InteropLibrary, com.oracle.truffle.polyglot.PolyglotLanguageContext);
    descriptor: (Ljava/lang/Object;Lcom/oracle/truffle/api/interop/InteropLibrary;Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;)Z
    flags: (0x0000) 
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType this
        start local 1 // java.lang.Object arg
        start local 2 // com.oracle.truffle.api.interop.InteropLibrary interop
        start local 3 // com.oracle.truffle.polyglot.PolyglotLanguageContext languageContext
         0: .line 875
            aload 1 /* arg */
            instanceof com.oracle.truffle.polyglot.HostObject
            ifeq 1
            aload 1 /* arg */
            checkcast com.oracle.truffle.polyglot.HostObject
            invokevirtual com.oracle.truffle.polyglot.HostObject.getObjectClass:()Ljava/lang/Class;
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType.clazz:Ljava/lang/Class;
            if_acmpne 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 3 // com.oracle.truffle.polyglot.PolyglotLanguageContext languageContext
        end local 2 // com.oracle.truffle.api.interop.InteropLibrary interop
        end local 1 // java.lang.Object arg
        end local 0 // com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType this
      LocalVariableTable:
        Start  End  Slot             Name  Signature
            0    2     0             this  Lcom/oracle/truffle/polyglot/HostExecuteNode$JavaObjectType;
            0    2     1              arg  Ljava/lang/Object;
            0    2     2          interop  Lcom/oracle/truffle/api/interop/InteropLibrary;
            0    2     3  languageContext  Lcom/oracle/truffle/polyglot/PolyglotLanguageContext;
    MethodParameters:
                 Name  Flags
      arg              
      interop          
      languageContext  

  public int hashCode();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType this
         0: .line 880
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType.clazz:Ljava/lang/Class;
            ifnonnull 1
            iconst_0
            goto 2
      StackMap locals:
      StackMap stack:
         1: aload 0 /* this */
            getfield com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType.clazz:Ljava/lang/Class;
            invokevirtual java.lang.Object.hashCode:()I
      StackMap locals:
      StackMap stack: int
         2: ireturn
        end local 0 // com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lcom/oracle/truffle/polyglot/HostExecuteNode$JavaObjectType;

  public boolean equals(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType this
        start local 1 // java.lang.Object obj
         0: .line 885
            aload 0 /* this */
            aload 1 /* obj */
            if_acmpne 2
         1: .line 886
            iconst_1
            ireturn
         2: .line 888
      StackMap locals:
      StackMap stack:
            aload 1 /* obj */
            instanceof com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType
            ifne 4
         3: .line 889
            iconst_0
            ireturn
         4: .line 891
      StackMap locals:
      StackMap stack:
            aload 1 /* obj */
            checkcast com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType
            astore 2 /* other */
        start local 2 // com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType other
         5: .line 892
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType.clazz:Ljava/lang/Class;
            aload 2 /* other */
            getfield com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType.clazz:Ljava/lang/Class;
            invokestatic java.util.Objects.equals:(Ljava/lang/Object;Ljava/lang/Object;)Z
            ireturn
        end local 2 // com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType other
        end local 1 // java.lang.Object obj
        end local 0 // com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    6     0   this  Lcom/oracle/truffle/polyglot/HostExecuteNode$JavaObjectType;
            0    6     1    obj  Ljava/lang/Object;
            5    6     2  other  Lcom/oracle/truffle/polyglot/HostExecuteNode$JavaObjectType;
    MethodParameters:
      Name  Flags
      obj   

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType this
         0: .line 897
            new java.lang.StringBuilder
            dup
            ldc "JavaObject["
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType.clazz:Ljava/lang/Class;
            invokevirtual java.lang.Class.getTypeName:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc "]"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 0 // com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/polyglot/HostExecuteNode$JavaObjectType;
}
SourceFile: "HostExecuteNode.java"
NestHost: com.oracle.truffle.polyglot.HostExecuteNode
InnerClasses:
  final JavaObjectType = com.oracle.truffle.polyglot.HostExecuteNode$JavaObjectType of com.oracle.truffle.polyglot.HostExecuteNode
  abstract TypeCheckNode = com.oracle.truffle.polyglot.HostExecuteNode$TypeCheckNode of com.oracle.truffle.polyglot.HostExecuteNode