https://www.graalvm.org/ 
public class com.oracle.truffle.llvm.tests.interop.PolyglotBuiltinTest$TestHostInteropNode extends com.oracle.truffle.llvm.tests.interop.InteropTestBase$SulongTestNode
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.oracle.truffle.llvm.tests.interop.PolyglotBuiltinTest$TestHostInteropNode
  super_class: com.oracle.truffle.llvm.tests.interop.InteropTestBase$SulongTestNode
{
  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.oracle.truffle.llvm.tests.interop.PolyglotBuiltinTest$TestHostInteropNode this
         0: .line 158
            aload 0 /* this */
            getstatic com.oracle.truffle.llvm.tests.interop.PolyglotBuiltinTest.testLibrary:Ljava/lang/Object;
            ldc "test_host_interop"
            invokespecial com.oracle.truffle.llvm.tests.interop.InteropTestBase$SulongTestNode.<init>:(Ljava/lang/Object;Ljava/lang/String;)V
         1: .line 159
            return
        end local 0 // com.oracle.truffle.llvm.tests.interop.PolyglotBuiltinTest$TestHostInteropNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/oracle/truffle/llvm/tests/interop/PolyglotBuiltinTest$TestHostInteropNode;
}
SourceFile: "PolyglotBuiltinTest.java"
NestHost: com.oracle.truffle.llvm.tests.interop.PolyglotBuiltinTest
InnerClasses:
  public SulongTestNode = com.oracle.truffle.llvm.tests.interop.InteropTestBase$SulongTestNode of com.oracle.truffle.llvm.tests.interop.InteropTestBase
  public TestHostInteropNode = com.oracle.truffle.llvm.tests.interop.PolyglotBuiltinTest$TestHostInteropNode of com.oracle.truffle.llvm.tests.interop.PolyglotBuiltinTest