public class android.net.lowpan.LowpanScanner
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: android.net.lowpan.LowpanScanner
  super_class: java.lang.Object
{
  private static final java.lang.String TAG;
    descriptor: Ljava/lang/String;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private android.net.lowpan.ILowpanInterface mBinder;
    descriptor: Landroid/net/lowpan/ILowpanInterface;
    flags: (0x0002) ACC_PRIVATE

  private android.net.lowpan.LowpanScanner$Callback mCallback;
    descriptor: Landroid/net/lowpan/LowpanScanner$Callback;
    flags: (0x0002) ACC_PRIVATE

  private android.os.Handler mHandler;
    descriptor: Landroid/os/Handler;
    flags: (0x0002) ACC_PRIVATE

  private java.util.ArrayList<java.lang.Integer> mChannelMask;
    descriptor: Ljava/util/ArrayList;
    flags: (0x0002) ACC_PRIVATE
    Signature: Ljava/util/ArrayList<Ljava/lang/Integer;>;

  private int mTxPower;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 39
            ldc Landroid/net/lowpan/LowpanScanner;
            invokevirtual java.lang.Class.getSimpleName:()Ljava/lang/String;
            putstatic android.net.lowpan.LowpanScanner.TAG:Ljava/lang/String;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>(android.net.lowpan.ILowpanInterface);
    descriptor: (Landroid/net/lowpan/ILowpanInterface;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // android.net.lowpan.LowpanScanner this
        start local 1 // android.net.lowpan.ILowpanInterface binder
         0: .line 67
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 60
            aload 0 /* this */
            aconst_null
            putfield android.net.lowpan.LowpanScanner.mCallback:Landroid/net/lowpan/LowpanScanner$Callback;
         2: .line 61
            aload 0 /* this */
            aconst_null
            putfield android.net.lowpan.LowpanScanner.mHandler:Landroid/os/Handler;
         3: .line 62
            aload 0 /* this */
            aconst_null
            putfield android.net.lowpan.LowpanScanner.mChannelMask:Ljava/util/ArrayList;
         4: .line 63
            aload 0 /* this */
            ldc 2147483647
            putfield android.net.lowpan.LowpanScanner.mTxPower:I
         5: .line 68
            aload 0 /* this */
            aload 1 /* binder */
            putfield android.net.lowpan.LowpanScanner.mBinder:Landroid/net/lowpan/ILowpanInterface;
         6: .line 69
            return
        end local 1 // android.net.lowpan.ILowpanInterface binder
        end local 0 // android.net.lowpan.LowpanScanner this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    7     0    this  Landroid/net/lowpan/LowpanScanner;
            0    7     1  binder  Landroid/net/lowpan/ILowpanInterface;
    MethodParameters:
        Name  Flags
      binder  

  public synchronized void setCallback(android.net.lowpan.LowpanScanner$Callback, android.os.Handler);
    descriptor: (Landroid/net/lowpan/LowpanScanner$Callback;Landroid/os/Handler;)V
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // android.net.lowpan.LowpanScanner this
        start local 1 // android.net.lowpan.LowpanScanner$Callback cb
        start local 2 // android.os.Handler handler
         0: .line 73
            aload 0 /* this */
            aload 1 /* cb */
            putfield android.net.lowpan.LowpanScanner.mCallback:Landroid/net/lowpan/LowpanScanner$Callback;
         1: .line 74
            aload 0 /* this */
            aload 2 /* handler */
            putfield android.net.lowpan.LowpanScanner.mHandler:Landroid/os/Handler;
         2: .line 75
            return
        end local 2 // android.os.Handler handler
        end local 1 // android.net.lowpan.LowpanScanner$Callback cb
        end local 0 // android.net.lowpan.LowpanScanner this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    3     0     this  Landroid/net/lowpan/LowpanScanner;
            0    3     1       cb  Landroid/net/lowpan/LowpanScanner$Callback;
            0    3     2  handler  Landroid/os/Handler;
    MethodParameters:
         Name  Flags
      cb       
      handler  

  public void setCallback(android.net.lowpan.LowpanScanner$Callback);
    descriptor: (Landroid/net/lowpan/LowpanScanner$Callback;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // android.net.lowpan.LowpanScanner this
        start local 1 // android.net.lowpan.LowpanScanner$Callback cb
         0: .line 79
            aload 0 /* this */
            aload 1 /* cb */
            aconst_null
            invokevirtual android.net.lowpan.LowpanScanner.setCallback:(Landroid/net/lowpan/LowpanScanner$Callback;Landroid/os/Handler;)V
         1: .line 80
            return
        end local 1 // android.net.lowpan.LowpanScanner$Callback cb
        end local 0 // android.net.lowpan.LowpanScanner this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Landroid/net/lowpan/LowpanScanner;
            0    2     1    cb  Landroid/net/lowpan/LowpanScanner$Callback;
    MethodParameters:
      Name  Flags
      cb    

  public void setChannelMask(java.util.Collection<java.lang.Integer>);
    descriptor: (Ljava/util/Collection;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // android.net.lowpan.LowpanScanner this
        start local 1 // java.util.Collection mask
         0: .line 90
            aload 1 /* mask */
            ifnonnull 3
         1: .line 91
            aload 0 /* this */
            aconst_null
            putfield android.net.lowpan.LowpanScanner.mChannelMask:Ljava/util/ArrayList;
         2: .line 92
            goto 8
         3: .line 93
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield android.net.lowpan.LowpanScanner.mChannelMask:Ljava/util/ArrayList;
            ifnonnull 6
         4: .line 94
            aload 0 /* this */
            new java.util.ArrayList
            dup
            invokespecial java.util.ArrayList.<init>:()V
            putfield android.net.lowpan.LowpanScanner.mChannelMask:Ljava/util/ArrayList;
         5: .line 95
            goto 7
         6: .line 96
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield android.net.lowpan.LowpanScanner.mChannelMask:Ljava/util/ArrayList;
            invokevirtual java.util.ArrayList.clear:()V
         7: .line 98
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield android.net.lowpan.LowpanScanner.mChannelMask:Ljava/util/ArrayList;
            aload 1 /* mask */
            invokevirtual java.util.ArrayList.addAll:(Ljava/util/Collection;)Z
            pop
         8: .line 100
      StackMap locals:
      StackMap stack:
            return
        end local 1 // java.util.Collection mask
        end local 0 // android.net.lowpan.LowpanScanner this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    9     0  this  Landroid/net/lowpan/LowpanScanner;
            0    9     1  mask  Ljava/util/Collection<Ljava/lang/Integer;>;
    Signature: (Ljava/util/Collection<Ljava/lang/Integer;>;)V
    MethodParameters:
      Name  Flags
      mask  

  public java.util.Collection<java.lang.Integer> getChannelMask();
    descriptor: ()Ljava/util/Collection;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // android.net.lowpan.LowpanScanner this
         0: .line 108
            aload 0 /* this */
            getfield android.net.lowpan.LowpanScanner.mChannelMask:Ljava/util/ArrayList;
            invokevirtual java.util.ArrayList.clone:()Ljava/lang/Object;
            checkcast java.util.Collection
            areturn
        end local 0 // android.net.lowpan.LowpanScanner this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Landroid/net/lowpan/LowpanScanner;
    Signature: ()Ljava/util/Collection<Ljava/lang/Integer;>;

  public void addChannel(int);
    descriptor: (I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // android.net.lowpan.LowpanScanner this
        start local 1 // int channel
         0: .line 122
            aload 0 /* this */
            getfield android.net.lowpan.LowpanScanner.mChannelMask:Ljava/util/ArrayList;
            ifnonnull 2
         1: .line 123
            aload 0 /* this */
            new java.util.ArrayList
            dup
            invokespecial java.util.ArrayList.<init>:()V
            putfield android.net.lowpan.LowpanScanner.mChannelMask:Ljava/util/ArrayList;
         2: .line 125
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield android.net.lowpan.LowpanScanner.mChannelMask:Ljava/util/ArrayList;
            iload 1 /* channel */
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            invokevirtual java.util.ArrayList.add:(Ljava/lang/Object;)Z
            pop
         3: .line 126
            return
        end local 1 // int channel
        end local 0 // android.net.lowpan.LowpanScanner this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    4     0     this  Landroid/net/lowpan/LowpanScanner;
            0    4     1  channel  I
    MethodParameters:
         Name  Flags
      channel  

  public void setTxPower(int);
    descriptor: (I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // android.net.lowpan.LowpanScanner this
        start local 1 // int txPower
         0: .line 137
            aload 0 /* this */
            iload 1 /* txPower */
            putfield android.net.lowpan.LowpanScanner.mTxPower:I
         1: .line 138
            return
        end local 1 // int txPower
        end local 0 // android.net.lowpan.LowpanScanner this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    2     0     this  Landroid/net/lowpan/LowpanScanner;
            0    2     1  txPower  I
    MethodParameters:
         Name  Flags
      txPower  

  public int getTxPower();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // android.net.lowpan.LowpanScanner this
         0: .line 146
            aload 0 /* this */
            getfield android.net.lowpan.LowpanScanner.mTxPower:I
            ireturn
        end local 0 // android.net.lowpan.LowpanScanner this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Landroid/net/lowpan/LowpanScanner;

  private java.util.Map<java.lang.String, java.lang.Object> createScanOptionMap();
    descriptor: ()Ljava/util/Map;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=4, locals=2, args_size=1
        start local 0 // android.net.lowpan.LowpanScanner this
         0: .line 150
            new java.util.HashMap
            dup
            invokespecial java.util.HashMap.<init>:()V
            astore 1 /* map */
        start local 1 // java.util.Map map
         1: .line 152
            aload 0 /* this */
            getfield android.net.lowpan.LowpanScanner.mChannelMask:Ljava/util/ArrayList;
            ifnull 5
         2: .line 153
            getstatic android.net.lowpan.LowpanProperties.KEY_CHANNEL_MASK:Landroid/net/lowpan/LowpanProperty;
         3: .line 154
            aload 1 /* map */
            aload 0 /* this */
            getfield android.net.lowpan.LowpanScanner.mChannelMask:Ljava/util/ArrayList;
            invokevirtual java.util.ArrayList.stream:()Ljava/util/stream/Stream;
            invokedynamic applyAsInt()Ljava/util/function/ToIntFunction;
              Bootstrap: invokestatic java.lang.invoke.LambdaMetafactory.metafactory:(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;
                Method arguments:
                  (Ljava/lang/Object;)I
                  android/net/lowpan/LowpanScanner.lambda$0(Ljava/lang/Integer;)I (6)
                  (Ljava/lang/Integer;)I
            invokeinterface java.util.stream.Stream.mapToInt:(Ljava/util/function/ToIntFunction;)Ljava/util/stream/IntStream;
            invokeinterface java.util.stream.IntStream.toArray:()[I
         4: .line 153
            invokevirtual android.net.lowpan.LowpanProperty.putInMap:(Ljava/util/Map;Ljava/lang/Object;)V
         5: .line 157
      StackMap locals: java.util.Map
      StackMap stack:
            aload 0 /* this */
            getfield android.net.lowpan.LowpanScanner.mTxPower:I
            ldc 2147483647
            if_icmpeq 7
         6: .line 158
            getstatic android.net.lowpan.LowpanProperties.KEY_MAX_TX_POWER:Landroid/net/lowpan/LowpanProperty;
            aload 1 /* map */
            aload 0 /* this */
            getfield android.net.lowpan.LowpanScanner.mTxPower:I
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            invokevirtual android.net.lowpan.LowpanProperty.putInMap:(Ljava/util/Map;Ljava/lang/Object;)V
         7: .line 161
      StackMap locals:
      StackMap stack:
            aload 1 /* map */
            areturn
        end local 1 // java.util.Map map
        end local 0 // android.net.lowpan.LowpanScanner this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    8     0  this  Landroid/net/lowpan/LowpanScanner;
            1    8     1   map  Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;
    Signature: ()Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;

  public void startNetScan();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=1
        start local 0 // android.net.lowpan.LowpanScanner this
         0: .line 172
            aload 0 /* this */
            invokevirtual android.net.lowpan.LowpanScanner.createScanOptionMap:()Ljava/util/Map;
            astore 1 /* map */
        start local 1 // java.util.Map map
         1: .line 175
            new android.net.lowpan.LowpanScanner$1
            dup
            aload 0 /* this */
            invokespecial android.net.lowpan.LowpanScanner$1.<init>:(Landroid/net/lowpan/LowpanScanner;)V
         2: .line 174
            astore 2 /* binderListener */
        start local 2 // android.net.lowpan.ILowpanNetScanCallback binderListener
         3: .line 222
            aload 0 /* this */
            getfield android.net.lowpan.LowpanScanner.mBinder:Landroid/net/lowpan/ILowpanInterface;
            aload 1 /* map */
            aload 2 /* binderListener */
            invokeinterface android.net.lowpan.ILowpanInterface.startNetScan:(Ljava/util/Map;Landroid/net/lowpan/ILowpanNetScanCallback;)V
         4: .line 224
            goto 9
      StackMap locals: android.net.lowpan.LowpanScanner java.util.Map android.net.lowpan.ILowpanNetScanCallback
      StackMap stack: android.os.RemoteException
         5: astore 3 /* x */
        start local 3 // android.os.RemoteException x
         6: .line 225
            aload 3 /* x */
            invokevirtual android.os.RemoteException.rethrowAsRuntimeException:()Ljava/lang/RuntimeException;
            athrow
        end local 3 // android.os.RemoteException x
         7: .line 227
      StackMap locals:
      StackMap stack: android.os.ServiceSpecificException
            astore 3 /* x */
        start local 3 // android.os.ServiceSpecificException x
         8: .line 228
            aload 3 /* x */
            invokestatic android.net.lowpan.LowpanException.rethrowFromServiceSpecificException:(Landroid/os/ServiceSpecificException;)Landroid/net/lowpan/LowpanException;
            athrow
        end local 3 // android.os.ServiceSpecificException x
         9: .line 230
      StackMap locals:
      StackMap stack:
            return
        end local 2 // android.net.lowpan.ILowpanNetScanCallback binderListener
        end local 1 // java.util.Map map
        end local 0 // android.net.lowpan.LowpanScanner this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0   10     0            this  Landroid/net/lowpan/LowpanScanner;
            1   10     1             map  Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;
            3   10     2  binderListener  Landroid/net/lowpan/ILowpanNetScanCallback;
            6    7     3               x  Landroid/os/RemoteException;
            8    9     3               x  Landroid/os/ServiceSpecificException;
      Exception table:
        from    to  target  type
           3     4       5  Class android.os.RemoteException
           3     4       7  Class android.os.ServiceSpecificException
    Exceptions:
      throws android.net.lowpan.LowpanException

  public void stopNetScan();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=1
        start local 0 // android.net.lowpan.LowpanScanner this
         0: .line 239
            aload 0 /* this */
            getfield android.net.lowpan.LowpanScanner.mBinder:Landroid/net/lowpan/ILowpanInterface;
            invokeinterface android.net.lowpan.ILowpanInterface.stopNetScan:()V
         1: .line 241
            goto 4
      StackMap locals:
      StackMap stack: android.os.RemoteException
         2: astore 1 /* x */
        start local 1 // android.os.RemoteException x
         3: .line 242
            aload 1 /* x */
            invokevirtual android.os.RemoteException.rethrowAsRuntimeException:()Ljava/lang/RuntimeException;
            athrow
        end local 1 // android.os.RemoteException x
         4: .line 244
      StackMap locals:
      StackMap stack:
            return
        end local 0 // android.net.lowpan.LowpanScanner this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Landroid/net/lowpan/LowpanScanner;
            3    4     1     x  Landroid/os/RemoteException;
      Exception table:
        from    to  target  type
           0     1       2  Class android.os.RemoteException

  public void startEnergyScan();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=1
        start local 0 // android.net.lowpan.LowpanScanner this
         0: .line 254
            aload 0 /* this */
            invokevirtual android.net.lowpan.LowpanScanner.createScanOptionMap:()Ljava/util/Map;
            astore 1 /* map */
        start local 1 // java.util.Map map
         1: .line 257
            new android.net.lowpan.LowpanScanner$2
            dup
            aload 0 /* this */
            invokespecial android.net.lowpan.LowpanScanner$2.<init>:(Landroid/net/lowpan/LowpanScanner;)V
         2: .line 256
            astore 2 /* binderListener */
        start local 2 // android.net.lowpan.ILowpanEnergyScanCallback binderListener
         3: .line 303
            aload 0 /* this */
            getfield android.net.lowpan.LowpanScanner.mBinder:Landroid/net/lowpan/ILowpanInterface;
            aload 1 /* map */
            aload 2 /* binderListener */
            invokeinterface android.net.lowpan.ILowpanInterface.startEnergyScan:(Ljava/util/Map;Landroid/net/lowpan/ILowpanEnergyScanCallback;)V
         4: .line 305
            goto 9
      StackMap locals: android.net.lowpan.LowpanScanner java.util.Map android.net.lowpan.ILowpanEnergyScanCallback
      StackMap stack: android.os.RemoteException
         5: astore 3 /* x */
        start local 3 // android.os.RemoteException x
         6: .line 306
            aload 3 /* x */
            invokevirtual android.os.RemoteException.rethrowAsRuntimeException:()Ljava/lang/RuntimeException;
            athrow
        end local 3 // android.os.RemoteException x
         7: .line 308
      StackMap locals:
      StackMap stack: android.os.ServiceSpecificException
            astore 3 /* x */
        start local 3 // android.os.ServiceSpecificException x
         8: .line 309
            aload 3 /* x */
            invokestatic android.net.lowpan.LowpanException.rethrowFromServiceSpecificException:(Landroid/os/ServiceSpecificException;)Landroid/net/lowpan/LowpanException;
            athrow
        end local 3 // android.os.ServiceSpecificException x
         9: .line 311
      StackMap locals:
      StackMap stack:
            return
        end local 2 // android.net.lowpan.ILowpanEnergyScanCallback binderListener
        end local 1 // java.util.Map map
        end local 0 // android.net.lowpan.LowpanScanner this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0   10     0            this  Landroid/net/lowpan/LowpanScanner;
            1   10     1             map  Ljava/util/Map<Ljava/lang/String;Ljava/lang/Object;>;
            3   10     2  binderListener  Landroid/net/lowpan/ILowpanEnergyScanCallback;
            6    7     3               x  Landroid/os/RemoteException;
            8    9     3               x  Landroid/os/ServiceSpecificException;
      Exception table:
        from    to  target  type
           3     4       5  Class android.os.RemoteException
           3     4       7  Class android.os.ServiceSpecificException
    Exceptions:
      throws android.net.lowpan.LowpanException

  public void stopEnergyScan();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=2, args_size=1
        start local 0 // android.net.lowpan.LowpanScanner this
         0: .line 320
            aload 0 /* this */
            getfield android.net.lowpan.LowpanScanner.mBinder:Landroid/net/lowpan/ILowpanInterface;
            invokeinterface android.net.lowpan.ILowpanInterface.stopEnergyScan:()V
         1: .line 322
            goto 4
      StackMap locals:
      StackMap stack: android.os.RemoteException
         2: astore 1 /* x */
        start local 1 // android.os.RemoteException x
         3: .line 323
            aload 1 /* x */
            invokevirtual android.os.RemoteException.rethrowAsRuntimeException:()Ljava/lang/RuntimeException;
            athrow
        end local 1 // android.os.RemoteException x
         4: .line 325
      StackMap locals:
      StackMap stack:
            return
        end local 0 // android.net.lowpan.LowpanScanner this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Landroid/net/lowpan/LowpanScanner;
            3    4     1     x  Landroid/os/RemoteException;
      Exception table:
        from    to  target  type
           0     1       2  Class android.os.RemoteException

  private static int lambda$0(java.lang.Integer);
    descriptor: (Ljava/lang/Integer;)I
    flags: (0x100a) ACC_PRIVATE, ACC_STATIC, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // java.lang.Integer i
         0: .line 154
            aload 0 /* i */
            invokevirtual java.lang.Integer.intValue:()I
            ireturn
        end local 0 // java.lang.Integer i
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0     i  Ljava/lang/Integer;
}
SourceFile: "LowpanScanner.java"
NestMembers:
  android.net.lowpan.LowpanScanner$1  android.net.lowpan.LowpanScanner$2  android.net.lowpan.LowpanScanner$Callback
InnerClasses:
  android.net.lowpan.LowpanScanner$1
  android.net.lowpan.LowpanScanner$2
  public abstract Callback = android.net.lowpan.LowpanScanner$Callback of android.net.lowpan.LowpanScanner
  public final Lookup = java.lang.invoke.MethodHandles$Lookup of java.lang.invoke.MethodHandles