https://www.graalvm.org/ 
class com.oracle.svm.core.windows.WindowsVMLockFeature$2 extends com.oracle.svm.core.locks.ClassInstanceReplacer<com.oracle.svm.core.locks.VMCondition, com.oracle.svm.core.windows.WindowsVMCondition>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.svm.core.windows.WindowsVMLockFeature$2
  super_class: com.oracle.svm.core.locks.ClassInstanceReplacer
{
  final com.oracle.svm.core.windows.WindowsVMLockFeature this$0;
    descriptor: Lcom/oracle/svm/core/windows/WindowsVMLockFeature;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  void <init>(com.oracle.svm.core.windows.WindowsVMLockFeature, java.lang.Class);
    descriptor: (Lcom/oracle/svm/core/windows/WindowsVMLockFeature;Ljava/lang/Class;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.oracle.svm.core.windows.WindowsVMLockFeature$2 this
        start local 2 // java.lang.Class $anonymous0
         0: .line 72
            aload 0 /* this */
            aload 1
            putfield com.oracle.svm.core.windows.WindowsVMLockFeature$2.this$0:Lcom/oracle/svm/core/windows/WindowsVMLockFeature;
            aload 0 /* this */
            aload 2 /* $anonymous0 */
            invokespecial com.oracle.svm.core.locks.ClassInstanceReplacer.<init>:(Ljava/lang/Class;)V
            return
        end local 2 // java.lang.Class $anonymous0
        end local 0 // com.oracle.svm.core.windows.WindowsVMLockFeature$2 this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    1     0         this  Lcom/oracle/svm/core/windows/WindowsVMLockFeature$2;
            0    1     2  $anonymous0  Ljava/lang/Class<Lcom/oracle/svm/core/locks/VMCondition;>;
    MethodParameters:
             Name  Flags
      this$0       final
      $anonymous0  

  protected com.oracle.svm.core.windows.WindowsVMCondition createReplacement(com.oracle.svm.core.locks.VMCondition);
    descriptor: (Lcom/oracle/svm/core/locks/VMCondition;)Lcom/oracle/svm/core/windows/WindowsVMCondition;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // com.oracle.svm.core.windows.WindowsVMLockFeature$2 this
        start local 1 // com.oracle.svm.core.locks.VMCondition source
         0: .line 75
            new com.oracle.svm.core.windows.WindowsVMCondition
            dup
            aload 0 /* this */
            getfield com.oracle.svm.core.windows.WindowsVMLockFeature$2.this$0:Lcom/oracle/svm/core/windows/WindowsVMLockFeature;
            getfield com.oracle.svm.core.windows.WindowsVMLockFeature.mutexReplacer:Lcom/oracle/svm/core/locks/ClassInstanceReplacer;
            aload 1 /* source */
            invokevirtual com.oracle.svm.core.locks.VMCondition.getMutex:()Lcom/oracle/svm/core/locks/VMMutex;
            invokevirtual com.oracle.svm.core.locks.ClassInstanceReplacer.apply:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast com.oracle.svm.core.windows.WindowsVMMutex
            invokespecial com.oracle.svm.core.windows.WindowsVMCondition.<init>:(Lcom/oracle/svm/core/windows/WindowsVMMutex;)V
            areturn
        end local 1 // com.oracle.svm.core.locks.VMCondition source
        end local 0 // com.oracle.svm.core.windows.WindowsVMLockFeature$2 this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0    this  Lcom/oracle/svm/core/windows/WindowsVMLockFeature$2;
            0    1     1  source  Lcom/oracle/svm/core/locks/VMCondition;
    MethodParameters:
        Name  Flags
      source  

  protected java.lang.Object createReplacement(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x1044) ACC_PROTECTED, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=2, locals=2, args_size=2
         0: .line 1
            aload 0
            aload 1
            checkcast com.oracle.svm.core.locks.VMCondition
            invokevirtual com.oracle.svm.core.windows.WindowsVMLockFeature$2.createReplacement:(Lcom/oracle/svm/core/locks/VMCondition;)Lcom/oracle/svm/core/windows/WindowsVMCondition;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Lcom/oracle/svm/core/locks/ClassInstanceReplacer<Lcom/oracle/svm/core/locks/VMCondition;Lcom/oracle/svm/core/windows/WindowsVMCondition;>;
SourceFile: "WindowsVMLockSupport.java"
EnclosingMethod: com.oracle.svm.core.windows.WindowsVMLockFeature
NestHost: com.oracle.svm.core.windows.WindowsVMLockFeature
InnerClasses:
  com.oracle.svm.core.windows.WindowsVMLockFeature$2