https://www.graalvm.org/ 
class com.oracle.svm.hosted.dashboard.ToJson$JsonObject$1 extends com.oracle.svm.hosted.dashboard.ToJson$JsonObject
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: com.oracle.svm.hosted.dashboard.ToJson$JsonObject$1
  super_class: com.oracle.svm.hosted.dashboard.ToJson$JsonObject
{
  private final java.util.stream.Stream val$names;
    descriptor: Ljava/util/stream/Stream;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  private final java.util.function.Function val$func;
    descriptor: Ljava/util/function/Function;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  void <init>(java.util.stream.Stream, java.util.function.Function);
    descriptor: (Ljava/util/stream/Stream;Ljava/util/function/Function;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // com.oracle.svm.hosted.dashboard.ToJson$JsonObject$1 this
         0: .line 313
            aload 0 /* this */
            aload 1
            putfield com.oracle.svm.hosted.dashboard.ToJson$JsonObject$1.val$names:Ljava/util/stream/Stream;
            aload 0 /* this */
            aload 2
            putfield com.oracle.svm.hosted.dashboard.ToJson$JsonObject$1.val$func:Ljava/util/function/Function;
            aload 0 /* this */
            invokespecial com.oracle.svm.hosted.dashboard.ToJson$JsonObject.<init>:()V
            return
        end local 0 // com.oracle.svm.hosted.dashboard.ToJson$JsonObject$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/svm/hosted/dashboard/ToJson$JsonObject$1;
    MethodParameters:
           Name  Flags
      val$names  final
      val$func   final

  java.util.stream.Stream<java.lang.String> getNames();
    descriptor: ()Ljava/util/stream/Stream;
    flags: (0x0000) 
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.oracle.svm.hosted.dashboard.ToJson$JsonObject$1 this
         0: .line 316
            aload 0 /* this */
            getfield com.oracle.svm.hosted.dashboard.ToJson$JsonObject$1.val$names:Ljava/util/stream/Stream;
            areturn
        end local 0 // com.oracle.svm.hosted.dashboard.ToJson$JsonObject$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/svm/hosted/dashboard/ToJson$JsonObject$1;
    Signature: ()Ljava/util/stream/Stream<Ljava/lang/String;>;

  com.oracle.svm.hosted.dashboard.ToJson$JsonValue getValue(java.lang.String);
    descriptor: (Ljava/lang/String;)Lcom/oracle/svm/hosted/dashboard/ToJson$JsonValue;
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // com.oracle.svm.hosted.dashboard.ToJson$JsonObject$1 this
        start local 1 // java.lang.String name
         0: .line 321
            aload 0 /* this */
            getfield com.oracle.svm.hosted.dashboard.ToJson$JsonObject$1.val$func:Ljava/util/function/Function;
            aload 1 /* name */
            invokeinterface java.util.function.Function.apply:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast com.oracle.svm.hosted.dashboard.ToJson$JsonValue
            areturn
        end local 1 // java.lang.String name
        end local 0 // com.oracle.svm.hosted.dashboard.ToJson$JsonObject$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/oracle/svm/hosted/dashboard/ToJson$JsonObject$1;
            0    1     1  name  Ljava/lang/String;
    MethodParameters:
      Name  Flags
      name  
}
SourceFile: "ToJson.java"
EnclosingMethod: com.oracle.svm.hosted.dashboard.ToJson$JsonObject.get:(Ljava/util/stream/Stream;Ljava/util/function/Function;)Lcom/oracle/svm/hosted/dashboard/ToJson$JsonObject;
NestHost: com.oracle.svm.hosted.dashboard.ToJson
InnerClasses:
  public abstract JsonObject = com.oracle.svm.hosted.dashboard.ToJson$JsonObject of com.oracle.svm.hosted.dashboard.ToJson
  com.oracle.svm.hosted.dashboard.ToJson$JsonObject$1
  public abstract JsonValue = com.oracle.svm.hosted.dashboard.ToJson$JsonValue of com.oracle.svm.hosted.dashboard.ToJson