https://www.graalvm.org/ 
class com.oracle.truffle.polyglot.HostObject$RemoveArrayElement
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.truffle.polyglot.HostObject$RemoveArrayElement
  super_class: java.lang.Object
{
  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.HostObject$RemoveArrayElement this
         0: .line 561
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.oracle.truffle.polyglot.HostObject$RemoveArrayElement this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/polyglot/HostObject$RemoveArrayElement;

  static void doList(com.oracle.truffle.polyglot.HostObject, long, com.oracle.truffle.polyglot.HostObject$IsListNode, com.oracle.truffle.api.profiles.BranchProfile);
    descriptor: (Lcom/oracle/truffle/polyglot/HostObject;JLcom/oracle/truffle/polyglot/HostObject$IsListNode;Lcom/oracle/truffle/api/profiles/BranchProfile;)V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=5, args_size=4
        start local 0 // com.oracle.truffle.polyglot.HostObject receiver
        start local 1 // long index
        start local 3 // com.oracle.truffle.polyglot.HostObject$IsListNode isList
        start local 4 // com.oracle.truffle.api.profiles.BranchProfile error
         0: .line 566
            lload 1 /* index */
            lconst_0
            lcmp
            iflt 1
            ldc 2147483647
            lload 1 /* index */
            lcmp
            ifge 3
         1: .line 567
      StackMap locals:
      StackMap stack:
            aload 4 /* error */
            invokevirtual com.oracle.truffle.api.profiles.BranchProfile.enter:()V
         2: .line 568
            lload 1 /* index */
            invokestatic com.oracle.truffle.api.interop.InvalidArrayIndexException.create:(J)Lcom/oracle/truffle/api/interop/InvalidArrayIndexException;
            athrow
         3: .line 571
      StackMap locals:
      StackMap stack:
            aload 0 /* receiver */
            lload 1 /* index */
            invokestatic com.oracle.truffle.polyglot.HostObject$RemoveArrayElement.boundaryRemove:(Lcom/oracle/truffle/polyglot/HostObject;J)Ljava/lang/Object;
            pop
         4: .line 572
            goto 8
      StackMap locals:
      StackMap stack: java.lang.IndexOutOfBoundsException
         5: pop
         6: .line 573
            aload 4 /* error */
            invokevirtual com.oracle.truffle.api.profiles.BranchProfile.enter:()V
         7: .line 574
            lload 1 /* index */
            invokestatic com.oracle.truffle.api.interop.InvalidArrayIndexException.create:(J)Lcom/oracle/truffle/api/interop/InvalidArrayIndexException;
            athrow
         8: .line 576
      StackMap locals:
      StackMap stack:
            return
        end local 4 // com.oracle.truffle.api.profiles.BranchProfile error
        end local 3 // com.oracle.truffle.polyglot.HostObject$IsListNode isList
        end local 1 // long index
        end local 0 // com.oracle.truffle.polyglot.HostObject receiver
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    9     0  receiver  Lcom/oracle/truffle/polyglot/HostObject;
            0    9     1     index  J
            0    9     3    isList  Lcom/oracle/truffle/polyglot/HostObject$IsListNode;
            0    9     4     error  Lcom/oracle/truffle/api/profiles/BranchProfile;
      Exception table:
        from    to  target  type
           3     4       5  Class java.lang.IndexOutOfBoundsException
    Exceptions:
      throws com.oracle.truffle.api.interop.InvalidArrayIndexException
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.dsl.Specialization(guards = {"isList.execute(receiver)"}, limit = "1")
    RuntimeInvisibleParameterAnnotations: 
      0:
      1:
      2:
        com.oracle.truffle.api.dsl.Cached$Shared(value = "isList")
        com.oracle.truffle.api.dsl.Cached()
      3:
        com.oracle.truffle.api.dsl.Cached$Shared(value = "error")
        com.oracle.truffle.api.dsl.Cached()
    MethodParameters:
          Name  Flags
      receiver  
      index     
      isList    
      error     

  private static java.lang.Object boundaryRemove(com.oracle.truffle.polyglot.HostObject, long);
    descriptor: (Lcom/oracle/truffle/polyglot/HostObject;J)Ljava/lang/Object;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // com.oracle.truffle.polyglot.HostObject receiver
        start local 1 // long index
         0: .line 581
            aload 0 /* receiver */
            getfield com.oracle.truffle.polyglot.HostObject.obj:Ljava/lang/Object;
            checkcast java.util.List
            lload 1 /* index */
            l2i
            invokeinterface java.util.List.remove:(I)Ljava/lang/Object;
            areturn
        end local 1 // long index
        end local 0 // com.oracle.truffle.polyglot.HostObject receiver
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0  receiver  Lcom/oracle/truffle/polyglot/HostObject;
            0    1     1     index  J
    Exceptions:
      throws java.lang.IndexOutOfBoundsException
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.CompilerDirectives$TruffleBoundary()
    MethodParameters:
          Name  Flags
      receiver  
      index     

  static void doOther(com.oracle.truffle.polyglot.HostObject, long, com.oracle.truffle.polyglot.HostObject$IsListNode);
    descriptor: (Lcom/oracle/truffle/polyglot/HostObject;JLcom/oracle/truffle/polyglot/HostObject$IsListNode;)V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=4, args_size=3
        start local 0 // com.oracle.truffle.polyglot.HostObject receiver
        start local 1 // long index
        start local 3 // com.oracle.truffle.polyglot.HostObject$IsListNode isList
         0: .line 587
            invokestatic com.oracle.truffle.api.interop.UnsupportedMessageException.create:()Lcom/oracle/truffle/api/interop/UnsupportedMessageException;
            athrow
        end local 3 // com.oracle.truffle.polyglot.HostObject$IsListNode isList
        end local 1 // long index
        end local 0 // com.oracle.truffle.polyglot.HostObject receiver
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    1     0  receiver  Lcom/oracle/truffle/polyglot/HostObject;
            0    1     1     index  J
            0    1     3    isList  Lcom/oracle/truffle/polyglot/HostObject$IsListNode;
    Exceptions:
      throws com.oracle.truffle.api.interop.UnsupportedMessageException
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.dsl.Specialization(guards = {"!isList.execute(receiver)"}, limit = "1")
    RuntimeInvisibleParameterAnnotations: 
      0:
      1:
      2:
        com.oracle.truffle.api.dsl.Cached$Shared(value = "isList")
        com.oracle.truffle.api.dsl.Cached()
    MethodParameters:
          Name  Flags
      receiver  
      index     
      isList    
}
SourceFile: "HostObject.java"
NestHost: com.oracle.truffle.polyglot.HostObject
InnerClasses:
  public abstract TruffleBoundary = com.oracle.truffle.api.CompilerDirectives$TruffleBoundary of com.oracle.truffle.api.CompilerDirectives
  public abstract Shared = com.oracle.truffle.api.dsl.Cached$Shared of com.oracle.truffle.api.dsl.Cached
  abstract IsListNode = com.oracle.truffle.polyglot.HostObject$IsListNode of com.oracle.truffle.polyglot.HostObject
  RemoveArrayElement = com.oracle.truffle.polyglot.HostObject$RemoveArrayElement of com.oracle.truffle.polyglot.HostObject
    RuntimeVisibleAnnotations: 
      com.oracle.truffle.api.library.ExportMessage()