http://ehcache.org: The implementation module of Ehcache 3 (Terracotta Inc., a wholly-owned subsidiary of Software AG USA, Inc.) 
public class org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue<K, V> extends org.ehcache.impl.internal.loaderwriter.writebehind.AbstractWriteBehind<K, V>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue
  super_class: org.ehcache.impl.internal.loaderwriter.writebehind.AbstractWriteBehind
{
  private static final org.slf4j.Logger LOGGER;
    descriptor: Lorg/slf4j/Logger;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private final org.ehcache.spi.loaderwriter.CacheLoaderWriter<K, V> cacheLoaderWriter;
    descriptor: Lorg/ehcache/spi/loaderwriter/CacheLoaderWriter;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Lorg/ehcache/spi/loaderwriter/CacheLoaderWriter<TK;TV;>;

  private final java.util.concurrent.ConcurrentMap<K, org.ehcache.impl.internal.loaderwriter.writebehind.operations.SingleOperation<K, V>> latest;
    descriptor: Ljava/util/concurrent/ConcurrentMap;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/concurrent/ConcurrentMap<TK;Lorg/ehcache/impl/internal/loaderwriter/writebehind/operations/SingleOperation<TK;TV;>;>;

  private final java.util.concurrent.BlockingQueue<java.lang.Runnable> executorQueue;
    descriptor: Ljava/util/concurrent/BlockingQueue;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/concurrent/BlockingQueue<Ljava/lang/Runnable;>;

  private final java.util.concurrent.ExecutorService executor;
    descriptor: Ljava/util/concurrent/ExecutorService;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 40
            ldc Lorg/ehcache/impl/internal/loaderwriter/writebehind/NonBatchingLocalHeapWriteBehindQueue;
            invokestatic org.slf4j.LoggerFactory.getLogger:(Ljava/lang/Class;)Lorg/slf4j/Logger;
            putstatic org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.LOGGER:Lorg/slf4j/Logger;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(org.ehcache.core.spi.service.ExecutionService, java.lang.String, org.ehcache.spi.loaderwriter.WriteBehindConfiguration<?>, org.ehcache.spi.loaderwriter.CacheLoaderWriter<K, V>);
    descriptor: (Lorg/ehcache/core/spi/service/ExecutionService;Ljava/lang/String;Lorg/ehcache/spi/loaderwriter/WriteBehindConfiguration;Lorg/ehcache/spi/loaderwriter/CacheLoaderWriter;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=5, args_size=5
        start local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
        start local 1 // org.ehcache.core.spi.service.ExecutionService executionService
        start local 2 // java.lang.String defaultThreadPool
        start local 3 // org.ehcache.spi.loaderwriter.WriteBehindConfiguration config
        start local 4 // org.ehcache.spi.loaderwriter.CacheLoaderWriter cacheLoaderWriter
         0: .line 48
            aload 0 /* this */
            aload 4 /* cacheLoaderWriter */
            invokespecial org.ehcache.impl.internal.loaderwriter.writebehind.AbstractWriteBehind.<init>:(Lorg/ehcache/spi/loaderwriter/CacheLoaderWriter;)V
         1: .line 43
            aload 0 /* this */
            new org.ehcache.impl.internal.concurrent.ConcurrentHashMap
            dup
            invokespecial org.ehcache.impl.internal.concurrent.ConcurrentHashMap.<init>:()V
            putfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.latest:Ljava/util/concurrent/ConcurrentMap;
         2: .line 49
            aload 0 /* this */
            aload 4 /* cacheLoaderWriter */
            putfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.cacheLoaderWriter:Lorg/ehcache/spi/loaderwriter/CacheLoaderWriter;
         3: .line 50
            aload 0 /* this */
            new java.util.concurrent.LinkedBlockingQueue
            dup
            aload 3 /* config */
            invokeinterface org.ehcache.spi.loaderwriter.WriteBehindConfiguration.getMaxQueueSize:()I
            invokespecial java.util.concurrent.LinkedBlockingQueue.<init>:(I)V
            putfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.executorQueue:Ljava/util/concurrent/BlockingQueue;
         4: .line 51
            aload 3 /* config */
            invokeinterface org.ehcache.spi.loaderwriter.WriteBehindConfiguration.getThreadPoolAlias:()Ljava/lang/String;
            ifnonnull 7
         5: .line 52
            aload 0 /* this */
            aload 1 /* executionService */
            aload 2 /* defaultThreadPool */
            aload 0 /* this */
            getfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.executorQueue:Ljava/util/concurrent/BlockingQueue;
            invokeinterface org.ehcache.core.spi.service.ExecutionService.getOrderedExecutor:(Ljava/lang/String;Ljava/util/concurrent/BlockingQueue;)Ljava/util/concurrent/ExecutorService;
            putfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.executor:Ljava/util/concurrent/ExecutorService;
         6: .line 53
            goto 8
         7: .line 54
      StackMap locals: org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue org.ehcache.core.spi.service.ExecutionService java.lang.String org.ehcache.spi.loaderwriter.WriteBehindConfiguration org.ehcache.spi.loaderwriter.CacheLoaderWriter
      StackMap stack:
            aload 0 /* this */
            aload 1 /* executionService */
            aload 3 /* config */
            invokeinterface org.ehcache.spi.loaderwriter.WriteBehindConfiguration.getThreadPoolAlias:()Ljava/lang/String;
            aload 0 /* this */
            getfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.executorQueue:Ljava/util/concurrent/BlockingQueue;
            invokeinterface org.ehcache.core.spi.service.ExecutionService.getOrderedExecutor:(Ljava/lang/String;Ljava/util/concurrent/BlockingQueue;)Ljava/util/concurrent/ExecutorService;
            putfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.executor:Ljava/util/concurrent/ExecutorService;
         8: .line 56
      StackMap locals:
      StackMap stack:
            return
        end local 4 // org.ehcache.spi.loaderwriter.CacheLoaderWriter cacheLoaderWriter
        end local 3 // org.ehcache.spi.loaderwriter.WriteBehindConfiguration config
        end local 2 // java.lang.String defaultThreadPool
        end local 1 // org.ehcache.core.spi.service.ExecutionService executionService
        end local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0    9     0               this  Lorg/ehcache/impl/internal/loaderwriter/writebehind/NonBatchingLocalHeapWriteBehindQueue<TK;TV;>;
            0    9     1   executionService  Lorg/ehcache/core/spi/service/ExecutionService;
            0    9     2  defaultThreadPool  Ljava/lang/String;
            0    9     3             config  Lorg/ehcache/spi/loaderwriter/WriteBehindConfiguration<*>;
            0    9     4  cacheLoaderWriter  Lorg/ehcache/spi/loaderwriter/CacheLoaderWriter<TK;TV;>;
    Signature: (Lorg/ehcache/core/spi/service/ExecutionService;Ljava/lang/String;Lorg/ehcache/spi/loaderwriter/WriteBehindConfiguration<*>;Lorg/ehcache/spi/loaderwriter/CacheLoaderWriter<TK;TV;>;)V
    MethodParameters:
                   Name  Flags
      executionService   
      defaultThreadPool  
      config             
      cacheLoaderWriter  

  protected org.ehcache.impl.internal.loaderwriter.writebehind.operations.SingleOperation<K, V> getOperation(K);
    descriptor: (Ljava/lang/Object;)Lorg/ehcache/impl/internal/loaderwriter/writebehind/operations/SingleOperation;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
        start local 1 // java.lang.Object key
         0: .line 61
            aload 0 /* this */
            getfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.latest:Ljava/util/concurrent/ConcurrentMap;
            aload 1 /* key */
            invokeinterface java.util.concurrent.ConcurrentMap.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast org.ehcache.impl.internal.loaderwriter.writebehind.operations.SingleOperation
            areturn
        end local 1 // java.lang.Object key
        end local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/ehcache/impl/internal/loaderwriter/writebehind/NonBatchingLocalHeapWriteBehindQueue<TK;TV;>;
            0    1     1   key  TK;
    Signature: (TK;)Lorg/ehcache/impl/internal/loaderwriter/writebehind/operations/SingleOperation<TK;TV;>;
    MethodParameters:
      Name  Flags
      key   

  protected void addOperation(org.ehcache.impl.internal.loaderwriter.writebehind.operations.SingleOperation<K, V>);
    descriptor: (Lorg/ehcache/impl/internal/loaderwriter/writebehind/operations/SingleOperation;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
        start local 1 // org.ehcache.impl.internal.loaderwriter.writebehind.operations.SingleOperation operation
         0: .line 66
            aload 0 /* this */
            getfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.latest:Ljava/util/concurrent/ConcurrentMap;
            aload 1 /* operation */
            invokeinterface org.ehcache.impl.internal.loaderwriter.writebehind.operations.SingleOperation.getKey:()Ljava/lang/Object;
            aload 1 /* operation */
            invokeinterface java.util.concurrent.ConcurrentMap.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         1: .line 68
            aload 0 /* this */
            aload 0 /* this */
            aload 1 /* operation */
            invokedynamic run(Lorg/ehcache/impl/internal/loaderwriter/writebehind/NonBatchingLocalHeapWriteBehindQueue;Lorg/ehcache/impl/internal/loaderwriter/writebehind/operations/SingleOperation;)Ljava/lang/Runnable;
              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:
                  ()V
                  org/ehcache/impl/internal/loaderwriter/writebehind/NonBatchingLocalHeapWriteBehindQueue.lambda$0(Lorg/ehcache/impl/internal/loaderwriter/writebehind/operations/SingleOperation;)V (7)
                  ()V
            invokevirtual org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.submit:(Ljava/lang/Runnable;)V
         2: .line 77
            return
        end local 1 // org.ehcache.impl.internal.loaderwriter.writebehind.operations.SingleOperation operation
        end local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    3     0       this  Lorg/ehcache/impl/internal/loaderwriter/writebehind/NonBatchingLocalHeapWriteBehindQueue<TK;TV;>;
            0    3     1  operation  Lorg/ehcache/impl/internal/loaderwriter/writebehind/operations/SingleOperation<TK;TV;>;
    Signature: (Lorg/ehcache/impl/internal/loaderwriter/writebehind/operations/SingleOperation<TK;TV;>;)V
    MethodParameters:
           Name  Flags
      operation  final

  public void start();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=0, locals=1, args_size=1
        start local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
         0: .line 82
            return
        end local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/ehcache/impl/internal/loaderwriter/writebehind/NonBatchingLocalHeapWriteBehindQueue<TK;TV;>;

  public void stop();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
         0: .line 86
            aload 0 /* this */
            getfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.executor:Ljava/util/concurrent/ExecutorService;
            invokestatic org.ehcache.impl.internal.executor.ExecutorUtil.shutdown:(Ljava/util/concurrent/ExecutorService;)V
         1: .line 87
            return
        end local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/ehcache/impl/internal/loaderwriter/writebehind/NonBatchingLocalHeapWriteBehindQueue<TK;TV;>;

  private void submit(java.lang.Runnable);
    descriptor: (Ljava/lang/Runnable;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
        start local 1 // java.lang.Runnable operation
         0: .line 90
            aload 0 /* this */
            getfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.executor:Ljava/util/concurrent/ExecutorService;
            aload 1 /* operation */
            invokeinterface java.util.concurrent.ExecutorService.submit:(Ljava/lang/Runnable;)Ljava/util/concurrent/Future;
            pop
         1: .line 91
            return
        end local 1 // java.lang.Runnable operation
        end local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    2     0       this  Lorg/ehcache/impl/internal/loaderwriter/writebehind/NonBatchingLocalHeapWriteBehindQueue<TK;TV;>;
            0    2     1  operation  Ljava/lang/Runnable;
    MethodParameters:
           Name  Flags
      operation  

  public long getQueueSize();
    descriptor: ()J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
         0: .line 95
            aload 0 /* this */
            getfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.executorQueue:Ljava/util/concurrent/BlockingQueue;
            invokeinterface java.util.concurrent.BlockingQueue.size:()I
            i2l
            lreturn
        end local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/ehcache/impl/internal/loaderwriter/writebehind/NonBatchingLocalHeapWriteBehindQueue<TK;TV;>;

  public java.lang.Object load(java.lang.Object);
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=2, locals=2, args_size=2
         0: .line 1
            aload 0
            aload 1
            invokespecial org.ehcache.impl.internal.loaderwriter.writebehind.AbstractWriteBehind.load:(Ljava/lang/Object;)Ljava/lang/Object;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
    Exceptions:
      throws java.lang.Exception

  public void delete(java.lang.Object);
    descriptor: (Ljava/lang/Object;)V
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=2, locals=2, args_size=2
         0: .line 1
            aload 0
            aload 1
            invokespecial org.ehcache.impl.internal.loaderwriter.writebehind.AbstractWriteBehind.delete:(Ljava/lang/Object;)V
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature
    Exceptions:
      throws org.ehcache.spi.loaderwriter.CacheWritingException

  public void write(java.lang.Object, java.lang.Object);
    descriptor: (Ljava/lang/Object;Ljava/lang/Object;)V
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=3, locals=3, args_size=3
         0: .line 1
            aload 0
            aload 1
            aload 2
            invokespecial org.ehcache.impl.internal.loaderwriter.writebehind.AbstractWriteBehind.write:(Ljava/lang/Object;Ljava/lang/Object;)V
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature
    Exceptions:
      throws org.ehcache.spi.loaderwriter.CacheWritingException

  private void lambda$0(org.ehcache.impl.internal.loaderwriter.writebehind.operations.SingleOperation);
    descriptor: (Lorg/ehcache/impl/internal/loaderwriter/writebehind/operations/SingleOperation;)V
    flags: (0x1002) ACC_PRIVATE, ACC_SYNTHETIC
    Code:
      stack=4, locals=4, args_size=2
        start local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
         0: .line 70
            aload 1
            aload 0 /* this */
            getfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.cacheLoaderWriter:Lorg/ehcache/spi/loaderwriter/CacheLoaderWriter;
            invokeinterface org.ehcache.impl.internal.loaderwriter.writebehind.operations.SingleOperation.performOperation:(Lorg/ehcache/spi/loaderwriter/CacheLoaderWriter;)V
         1: .line 71
            goto 8
      StackMap locals:
      StackMap stack: java.lang.Exception
         2: astore 2 /* e */
        start local 2 // java.lang.Exception e
         3: .line 72
            getstatic org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.LOGGER:Lorg/slf4j/Logger;
            ldc "Exception while processing key '{}' write behind queue : {}"
            aload 1
            invokeinterface org.ehcache.impl.internal.loaderwriter.writebehind.operations.SingleOperation.getKey:()Ljava/lang/Object;
            aload 2 /* e */
            invokeinterface org.slf4j.Logger.warn:(Ljava/lang/String;Ljava/lang/Object;Ljava/lang/Object;)V
        end local 2 // java.lang.Exception e
         4: .line 74
            aload 0 /* this */
            getfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.latest:Ljava/util/concurrent/ConcurrentMap;
            aload 1
            invokeinterface org.ehcache.impl.internal.loaderwriter.writebehind.operations.SingleOperation.getKey:()Ljava/lang/Object;
            aload 1
            invokeinterface java.util.concurrent.ConcurrentMap.remove:(Ljava/lang/Object;Ljava/lang/Object;)Z
            pop
            goto 9
         5: .line 73
      StackMap locals:
      StackMap stack: java.lang.Throwable
            astore 3
         6: .line 74
            aload 0 /* this */
            getfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.latest:Ljava/util/concurrent/ConcurrentMap;
            aload 1
            invokeinterface org.ehcache.impl.internal.loaderwriter.writebehind.operations.SingleOperation.getKey:()Ljava/lang/Object;
            aload 1
            invokeinterface java.util.concurrent.ConcurrentMap.remove:(Ljava/lang/Object;Ljava/lang/Object;)Z
            pop
         7: .line 75
            aload 3
            athrow
         8: .line 74
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue.latest:Ljava/util/concurrent/ConcurrentMap;
            aload 1
            invokeinterface org.ehcache.impl.internal.loaderwriter.writebehind.operations.SingleOperation.getKey:()Ljava/lang/Object;
            aload 1
            invokeinterface java.util.concurrent.ConcurrentMap.remove:(Ljava/lang/Object;Ljava/lang/Object;)Z
            pop
         9: .line 76
      StackMap locals:
      StackMap stack:
            return
        end local 0 // org.ehcache.impl.internal.loaderwriter.writebehind.NonBatchingLocalHeapWriteBehindQueue this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   10     0  this  Lorg/ehcache/impl/internal/loaderwriter/writebehind/NonBatchingLocalHeapWriteBehindQueue<TK;TV;>;
            3    4     2     e  Ljava/lang/Exception;
      Exception table:
        from    to  target  type
           0     1       2  Class java.lang.Exception
           0     4       5  any
}
Signature: <K:Ljava/lang/Object;V:Ljava/lang/Object;>Lorg/ehcache/impl/internal/loaderwriter/writebehind/AbstractWriteBehind<TK;TV;>;
SourceFile: "NonBatchingLocalHeapWriteBehindQueue.java"
InnerClasses:
  public final Lookup = java.lang.invoke.MethodHandles$Lookup of java.lang.invoke.MethodHandles