https://www.graalvm.org/ 
class com.oracle.truffle.llvm.tests.interop.LLVMInteropTest$10 implements org.graalvm.polyglot.proxy.ProxyExecutable
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.truffle.llvm.tests.interop.LLVMInteropTest$10
  super_class: java.lang.Object
{
  final com.oracle.truffle.llvm.tests.interop.LLVMInteropTest this$0;
    descriptor: Lcom/oracle/truffle/llvm/tests/interop/LLVMInteropTest;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  private final java.lang.StringBuilder val$buf;
    descriptor: Ljava/lang/StringBuilder;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  void <init>(com.oracle.truffle.llvm.tests.interop.LLVMInteropTest, java.lang.StringBuilder);
    descriptor: (Lcom/oracle/truffle/llvm/tests/interop/LLVMInteropTest;Ljava/lang/StringBuilder;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.oracle.truffle.llvm.tests.interop.LLVMInteropTest$10 this
         0: .line 1522
            aload 0 /* this */
            aload 1
            putfield com.oracle.truffle.llvm.tests.interop.LLVMInteropTest$10.this$0:Lcom/oracle/truffle/llvm/tests/interop/LLVMInteropTest;
            aload 0 /* this */
            aload 2
            putfield com.oracle.truffle.llvm.tests.interop.LLVMInteropTest$10.val$buf:Ljava/lang/StringBuilder;
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // com.oracle.truffle.llvm.tests.interop.LLVMInteropTest$10 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/llvm/tests/interop/LLVMInteropTest$10;
    MethodParameters:
         Name  Flags
      this$0   final
      val$buf  final

  public java.lang.Object execute(org.graalvm.polyglot.Value[]);
    descriptor: ([Lorg/graalvm/polyglot/Value;)Ljava/lang/Object;
    flags: (0x0081) ACC_PUBLIC, ACC_VARARGS
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // com.oracle.truffle.llvm.tests.interop.LLVMInteropTest$10 this
        start local 1 // org.graalvm.polyglot.Value[] t
         0: .line 1525
            ldc "argument count"
            lconst_1
            aload 1 /* t */
            arraylength
            i2l
            invokestatic org.junit.Assert.assertEquals:(Ljava/lang/String;JJ)V
         1: .line 1526
            aload 1 /* t */
            iconst_0
            aaload
            invokevirtual org.graalvm.polyglot.Value.isString:()Z
            ifeq 4
         2: .line 1527
            aload 0 /* this */
            getfield com.oracle.truffle.llvm.tests.interop.LLVMInteropTest$10.val$buf:Ljava/lang/StringBuilder;
            aload 1 /* t */
            iconst_0
            aaload
            invokevirtual org.graalvm.polyglot.Value.asString:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
         3: .line 1528
            goto 5
         4: .line 1529
      StackMap locals:
      StackMap stack:
            ldc "unexpected value type"
            invokestatic org.junit.Assert.fail:(Ljava/lang/String;)V
         5: .line 1531
      StackMap locals:
      StackMap stack:
            iconst_0
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            areturn
        end local 1 // org.graalvm.polyglot.Value[] t
        end local 0 // com.oracle.truffle.llvm.tests.interop.LLVMInteropTest$10 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lcom/oracle/truffle/llvm/tests/interop/LLVMInteropTest$10;
            0    6     1     t  [Lorg/graalvm/polyglot/Value;
    MethodParameters:
      Name  Flags
      t     
}
SourceFile: "LLVMInteropTest.java"
EnclosingMethod: com.oracle.truffle.llvm.tests.interop.LLVMInteropTest.testConstruct002:()V
NestHost: com.oracle.truffle.llvm.tests.interop.LLVMInteropTest
InnerClasses:
  com.oracle.truffle.llvm.tests.interop.LLVMInteropTest$10