https://www.graalvm.org/ 
class com.oracle.truffle.js.nodes.function.BuiltinArgumentBuilder$1 extends com.oracle.truffle.js.nodes.function.BuiltinArgumentBuilder
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.truffle.js.nodes.function.BuiltinArgumentBuilder$1
  super_class: com.oracle.truffle.js.nodes.function.BuiltinArgumentBuilder
{
  private int order;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  void <init>();
    descriptor: ()V
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.js.nodes.function.BuiltinArgumentBuilder$1 this
         0: .line 63
            aload 0 /* this */
            invokespecial com.oracle.truffle.js.nodes.function.BuiltinArgumentBuilder.<init>:()V
            return
        end local 0 // com.oracle.truffle.js.nodes.function.BuiltinArgumentBuilder$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/js/nodes/function/BuiltinArgumentBuilder$1;

  protected void assertOrder(int);
    descriptor: (I)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.js.nodes.function.BuiltinArgumentBuilder$1 this
        start local 1 // int order
         0: .line 68
            getstatic com.oracle.truffle.js.nodes.function.BuiltinArgumentBuilder.$assertionsDisabled:Z
            ifne 1
            aload 0 /* this */
            getfield com.oracle.truffle.js.nodes.function.BuiltinArgumentBuilder$1.order:I
            iload 1 /* order */
            if_icmplt 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 69
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            iload 1 /* order */
            putfield com.oracle.truffle.js.nodes.function.BuiltinArgumentBuilder$1.order:I
         2: .line 70
            return
        end local 1 // int order
        end local 0 // com.oracle.truffle.js.nodes.function.BuiltinArgumentBuilder$1 this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    3     0   this  Lcom/oracle/truffle/js/nodes/function/BuiltinArgumentBuilder$1;
            0    3     1  order  I
    MethodParameters:
       Name  Flags
      order  
}
SourceFile: "BuiltinArgumentBuilder.java"
EnclosingMethod: com.oracle.truffle.js.nodes.function.BuiltinArgumentBuilder.builder:()Lcom/oracle/truffle/js/nodes/function/BuiltinArgumentBuilder;
NestHost: com.oracle.truffle.js.nodes.function.BuiltinArgumentBuilder
InnerClasses:
  com.oracle.truffle.js.nodes.function.BuiltinArgumentBuilder$1