https://www.graalvm.org/ 
final class com.oracle.truffle.polyglot.EngineAccessor$StrongClassLoaderSupplier extends com.oracle.truffle.polyglot.EngineAccessor$AbstractClassLoaderSupplier
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.polyglot.EngineAccessor$StrongClassLoaderSupplier
  super_class: com.oracle.truffle.polyglot.EngineAccessor$AbstractClassLoaderSupplier
{
  private final java.lang.ClassLoader classLoader;
    descriptor: Ljava/lang/ClassLoader;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  void <init>(java.lang.ClassLoader);
    descriptor: (Ljava/lang/ClassLoader;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.truffle.polyglot.EngineAccessor$StrongClassLoaderSupplier this
        start local 1 // java.lang.ClassLoader classLoader
         0: .line 1396
            aload 0 /* this */
            aload 1 /* classLoader */
            invokespecial com.oracle.truffle.polyglot.EngineAccessor$AbstractClassLoaderSupplier.<init>:(Ljava/lang/ClassLoader;)V
         1: .line 1397
            aload 0 /* this */
            aload 1 /* classLoader */
            putfield com.oracle.truffle.polyglot.EngineAccessor$StrongClassLoaderSupplier.classLoader:Ljava/lang/ClassLoader;
         2: .line 1398
            return
        end local 1 // java.lang.ClassLoader classLoader
        end local 0 // com.oracle.truffle.polyglot.EngineAccessor$StrongClassLoaderSupplier this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    3     0         this  Lcom/oracle/truffle/polyglot/EngineAccessor$StrongClassLoaderSupplier;
            0    3     1  classLoader  Ljava/lang/ClassLoader;
    MethodParameters:
             Name  Flags
      classLoader  

  public java.lang.ClassLoader get();
    descriptor: ()Ljava/lang/ClassLoader;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.truffle.polyglot.EngineAccessor$StrongClassLoaderSupplier this
         0: .line 1402
            aload 0 /* this */
            getfield com.oracle.truffle.polyglot.EngineAccessor$StrongClassLoaderSupplier.classLoader:Ljava/lang/ClassLoader;
            areturn
        end local 0 // com.oracle.truffle.polyglot.EngineAccessor$StrongClassLoaderSupplier this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/truffle/polyglot/EngineAccessor$StrongClassLoaderSupplier;

  public java.lang.Object get();
    descriptor: ()Ljava/lang/Object;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
         0: .line 1
            aload 0
            invokevirtual com.oracle.truffle.polyglot.EngineAccessor$StrongClassLoaderSupplier.get:()Ljava/lang/ClassLoader;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
SourceFile: "EngineAccessor.java"
NestHost: com.oracle.truffle.polyglot.EngineAccessor
InnerClasses:
  abstract AbstractClassLoaderSupplier = com.oracle.truffle.polyglot.EngineAccessor$AbstractClassLoaderSupplier of com.oracle.truffle.polyglot.EngineAccessor
  final StrongClassLoaderSupplier = com.oracle.truffle.polyglot.EngineAccessor$StrongClassLoaderSupplier of com.oracle.truffle.polyglot.EngineAccessor