https://lucene.apache.org/lucene-parent/lucene-core: Apache Lucene Java Core (The Apache Software Foundation) 
final class org.apache.lucene.index.DocumentsWriterPerThreadPool implements java.lang.Iterable<org.apache.lucene.index.DocumentsWriterPerThread>, java.io.Closeable
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: org.apache.lucene.index.DocumentsWriterPerThreadPool
  super_class: java.lang.Object
{
  private final java.util.Set<org.apache.lucene.index.DocumentsWriterPerThread> dwpts;
    descriptor: Ljava/util/Set;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/Set<Lorg/apache/lucene/index/DocumentsWriterPerThread;>;

  private final java.util.Deque<org.apache.lucene.index.DocumentsWriterPerThread> freeList;
    descriptor: Ljava/util/Deque;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/Deque<Lorg/apache/lucene/index/DocumentsWriterPerThread;>;

  private final java.util.function.Supplier<org.apache.lucene.index.DocumentsWriterPerThread> dwptFactory;
    descriptor: Ljava/util/function/Supplier;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/function/Supplier<Lorg/apache/lucene/index/DocumentsWriterPerThread;>;

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

  private boolean closed;
    descriptor: Z
    flags: (0x0002) ACC_PRIVATE

  static final boolean $assertionsDisabled;
    descriptor: Z
    flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 48
            ldc Lorg/apache/lucene/index/DocumentsWriterPerThreadPool;
            invokevirtual java.lang.Class.desiredAssertionStatus:()Z
            ifne 1
            iconst_1
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_0
      StackMap locals:
      StackMap stack: int
         2: putstatic org.apache.lucene.index.DocumentsWriterPerThreadPool.$assertionsDisabled:Z
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>(java.util.function.Supplier<org.apache.lucene.index.DocumentsWriterPerThread>);
    descriptor: (Ljava/util/function/Supplier;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
        start local 1 // java.util.function.Supplier dwptFactory
         0: .line 57
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 50
            aload 0 /* this */
            new java.util.IdentityHashMap
            dup
            invokespecial java.util.IdentityHashMap.<init>:()V
            invokestatic java.util.Collections.newSetFromMap:(Ljava/util/Map;)Ljava/util/Set;
            putfield org.apache.lucene.index.DocumentsWriterPerThreadPool.dwpts:Ljava/util/Set;
         2: .line 51
            aload 0 /* this */
            new java.util.ArrayDeque
            dup
            invokespecial java.util.ArrayDeque.<init>:()V
            putfield org.apache.lucene.index.DocumentsWriterPerThreadPool.freeList:Ljava/util/Deque;
         3: .line 53
            aload 0 /* this */
            iconst_0
            putfield org.apache.lucene.index.DocumentsWriterPerThreadPool.takenWriterPermits:I
         4: .line 58
            aload 0 /* this */
            aload 1 /* dwptFactory */
            putfield org.apache.lucene.index.DocumentsWriterPerThreadPool.dwptFactory:Ljava/util/function/Supplier;
         5: .line 59
            return
        end local 1 // java.util.function.Supplier dwptFactory
        end local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    6     0         this  Lorg/apache/lucene/index/DocumentsWriterPerThreadPool;
            0    6     1  dwptFactory  Ljava/util/function/Supplier<Lorg/apache/lucene/index/DocumentsWriterPerThread;>;
    Signature: (Ljava/util/function/Supplier<Lorg/apache/lucene/index/DocumentsWriterPerThread;>;)V
    MethodParameters:
             Name  Flags
      dwptFactory  

  synchronized int size();
    descriptor: ()I
    flags: (0x0020) ACC_SYNCHRONIZED
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
         0: .line 65
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.dwpts:Ljava/util/Set;
            invokeinterface java.util.Set.size:()I
            ireturn
        end local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/index/DocumentsWriterPerThreadPool;

  synchronized void lockNewWriters();
    descriptor: ()V
    flags: (0x0020) ACC_SYNCHRONIZED
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
         0: .line 72
            getstatic org.apache.lucene.index.DocumentsWriterPerThreadPool.$assertionsDisabled:Z
            ifne 1
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.takenWriterPermits:I
            ifge 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 73
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            dup
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.takenWriterPermits:I
            iconst_1
            iadd
            putfield org.apache.lucene.index.DocumentsWriterPerThreadPool.takenWriterPermits:I
         2: .line 74
            return
        end local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/lucene/index/DocumentsWriterPerThreadPool;

  synchronized void unlockNewWriters();
    descriptor: ()V
    flags: (0x0020) ACC_SYNCHRONIZED
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
         0: .line 77
            getstatic org.apache.lucene.index.DocumentsWriterPerThreadPool.$assertionsDisabled:Z
            ifne 1
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.takenWriterPermits:I
            ifgt 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 78
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            dup
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.takenWriterPermits:I
            iconst_1
            isub
            putfield org.apache.lucene.index.DocumentsWriterPerThreadPool.takenWriterPermits:I
         2: .line 79
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.takenWriterPermits:I
            ifne 4
         3: .line 80
            aload 0 /* this */
            invokevirtual java.lang.Object.notifyAll:()V
         4: .line 82
      StackMap locals:
      StackMap stack:
            return
        end local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/apache/lucene/index/DocumentsWriterPerThreadPool;

  private synchronized org.apache.lucene.index.DocumentsWriterPerThread newWriter();
    descriptor: ()Lorg/apache/lucene/index/DocumentsWriterPerThread;
    flags: (0x0022) ACC_PRIVATE, ACC_SYNCHRONIZED
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
         0: .line 90
            getstatic org.apache.lucene.index.DocumentsWriterPerThreadPool.$assertionsDisabled:Z
            ifne 5
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.takenWriterPermits:I
            ifge 5
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 94
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            invokevirtual java.lang.Object.wait:()V
         2: .line 95
            goto 5
      StackMap locals:
      StackMap stack: java.lang.InterruptedException
         3: astore 1 /* ie */
        start local 1 // java.lang.InterruptedException ie
         4: .line 96
            new org.apache.lucene.util.ThreadInterruptedException
            dup
            aload 1 /* ie */
            invokespecial org.apache.lucene.util.ThreadInterruptedException.<init>:(Ljava/lang/InterruptedException;)V
            athrow
        end local 1 // java.lang.InterruptedException ie
         5: .line 91
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.takenWriterPermits:I
            ifgt 1
         6: .line 102
            aload 0 /* this */
            invokevirtual org.apache.lucene.index.DocumentsWriterPerThreadPool.ensureOpen:()V
         7: .line 103
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.dwptFactory:Ljava/util/function/Supplier;
            invokeinterface java.util.function.Supplier.get:()Ljava/lang/Object;
            checkcast org.apache.lucene.index.DocumentsWriterPerThread
            astore 1 /* dwpt */
        start local 1 // org.apache.lucene.index.DocumentsWriterPerThread dwpt
         8: .line 104
            aload 1 /* dwpt */
            invokevirtual org.apache.lucene.index.DocumentsWriterPerThread.lock:()V
         9: .line 105
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.dwpts:Ljava/util/Set;
            aload 1 /* dwpt */
            invokeinterface java.util.Set.add:(Ljava/lang/Object;)Z
            pop
        10: .line 106
            aload 1 /* dwpt */
            areturn
        end local 1 // org.apache.lucene.index.DocumentsWriterPerThread dwpt
        end local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   11     0  this  Lorg/apache/lucene/index/DocumentsWriterPerThreadPool;
            4    5     1    ie  Ljava/lang/InterruptedException;
            8   11     1  dwpt  Lorg/apache/lucene/index/DocumentsWriterPerThread;
      Exception table:
        from    to  target  type
           1     2       3  Class java.lang.InterruptedException

  org.apache.lucene.index.DocumentsWriterPerThread getAndLock();
    descriptor: ()Lorg/apache/lucene/index/DocumentsWriterPerThread;
    flags: (0x0000) 
    Code:
      stack=2, locals=4, args_size=1
        start local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
         0: .line 114
            aload 0 /* this */
            dup
            astore 1
            monitorenter
         1: .line 115
            aload 0 /* this */
            invokevirtual org.apache.lucene.index.DocumentsWriterPerThreadPool.ensureOpen:()V
         2: .line 119
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.freeList:Ljava/util/Deque;
            invokeinterface java.util.Deque.descendingIterator:()Ljava/util/Iterator;
            astore 2 /* descendingIterator */
        start local 2 // java.util.Iterator descendingIterator
         3: .line 120
            goto 9
         4: .line 121
      StackMap locals: org.apache.lucene.index.DocumentsWriterPerThreadPool java.util.Iterator
      StackMap stack:
            aload 2 /* descendingIterator */
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast org.apache.lucene.index.DocumentsWriterPerThread
            astore 3 /* perThread */
        start local 3 // org.apache.lucene.index.DocumentsWriterPerThread perThread
         5: .line 122
            aload 3 /* perThread */
            invokevirtual org.apache.lucene.index.DocumentsWriterPerThread.tryLock:()Z
            ifeq 9
         6: .line 123
            aload 2 /* descendingIterator */
            invokeinterface java.util.Iterator.remove:()V
         7: .line 124
            aload 3 /* perThread */
            aload 1
            monitorexit
         8: areturn
        end local 3 // org.apache.lucene.index.DocumentsWriterPerThread perThread
         9: .line 120
      StackMap locals:
      StackMap stack:
            aload 2 /* descendingIterator */
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 4
        10: .line 128
            aload 0 /* this */
            invokevirtual org.apache.lucene.index.DocumentsWriterPerThreadPool.newWriter:()Lorg/apache/lucene/index/DocumentsWriterPerThread;
            aload 1
            monitorexit
        11: areturn
        end local 2 // java.util.Iterator descendingIterator
        12: .line 114
      StackMap locals: org.apache.lucene.index.DocumentsWriterPerThreadPool org.apache.lucene.index.DocumentsWriterPerThreadPool
      StackMap stack: java.lang.Throwable
            aload 1
            monitorexit
        13: athrow
        end local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
      LocalVariableTable:
        Start  End  Slot                Name  Signature
            0   14     0                this  Lorg/apache/lucene/index/DocumentsWriterPerThreadPool;
            3   12     2  descendingIterator  Ljava/util/Iterator<Lorg/apache/lucene/index/DocumentsWriterPerThread;>;
            5    9     3           perThread  Lorg/apache/lucene/index/DocumentsWriterPerThread;
      Exception table:
        from    to  target  type
           1     8      12  any
           9    11      12  any
          12    13      12  any

  private void ensureOpen();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
         0: .line 133
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.closed:Z
            ifeq 2
         1: .line 134
            new org.apache.lucene.store.AlreadyClosedException
            dup
            ldc "DWPTPool is already closed"
            invokespecial org.apache.lucene.store.AlreadyClosedException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 136
      StackMap locals:
      StackMap stack:
            return
        end local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/lucene/index/DocumentsWriterPerThreadPool;

  void marksAsFreeAndUnlock(org.apache.lucene.index.DocumentsWriterPerThread);
    descriptor: (Lorg/apache/lucene/index/DocumentsWriterPerThread;)V
    flags: (0x0000) 
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
        start local 1 // org.apache.lucene.index.DocumentsWriterPerThread state
         0: .line 139
            aload 0 /* this */
            dup
            astore 2
            monitorenter
         1: .line 140
            getstatic org.apache.lucene.index.DocumentsWriterPerThreadPool.$assertionsDisabled:Z
            ifne 2
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.dwpts:Ljava/util/Set;
            aload 1 /* state */
            invokeinterface java.util.Set.contains:(Ljava/lang/Object;)Z
            ifne 2
            new java.lang.AssertionError
            dup
            ldc "we tried to add a DWPT back to the pool but the pool doesn't know aobut this DWPT"
            invokespecial java.lang.AssertionError.<init>:(Ljava/lang/Object;)V
            athrow
         2: .line 141
      StackMap locals: org.apache.lucene.index.DocumentsWriterPerThreadPool
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.freeList:Ljava/util/Deque;
            aload 1 /* state */
            invokeinterface java.util.Deque.add:(Ljava/lang/Object;)Z
            pop
         3: .line 139
            aload 2
            monitorexit
         4: goto 7
      StackMap locals:
      StackMap stack: java.lang.Throwable
         5: aload 2
            monitorexit
         6: athrow
         7: .line 143
      StackMap locals:
      StackMap stack:
            aload 1 /* state */
            invokevirtual org.apache.lucene.index.DocumentsWriterPerThread.unlock:()V
         8: .line 144
            return
        end local 1 // org.apache.lucene.index.DocumentsWriterPerThread state
        end local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    9     0   this  Lorg/apache/lucene/index/DocumentsWriterPerThreadPool;
            0    9     1  state  Lorg/apache/lucene/index/DocumentsWriterPerThread;
      Exception table:
        from    to  target  type
           1     4       5  any
           5     6       5  any
    MethodParameters:
       Name  Flags
      state  

  public synchronized java.util.Iterator<org.apache.lucene.index.DocumentsWriterPerThread> iterator();
    descriptor: ()Ljava/util/Iterator;
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
         0: .line 148
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.dwpts:Ljava/util/Set;
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.dwpts:Ljava/util/Set;
            invokeinterface java.util.Set.size:()I
            anewarray org.apache.lucene.index.DocumentsWriterPerThread
            invokeinterface java.util.Set.toArray:([Ljava/lang/Object;)[Ljava/lang/Object;
            checkcast org.apache.lucene.index.DocumentsWriterPerThread[]
            invokestatic java.util.Arrays.asList:([Ljava/lang/Object;)Ljava/util/List;
            invokeinterface java.util.List.iterator:()Ljava/util/Iterator;
            areturn
        end local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/lucene/index/DocumentsWriterPerThreadPool;
    Signature: ()Ljava/util/Iterator<Lorg/apache/lucene/index/DocumentsWriterPerThread;>;

  java.util.List<org.apache.lucene.index.DocumentsWriterPerThread> filterAndLock(java.util.function.Predicate<org.apache.lucene.index.DocumentsWriterPerThread>);
    descriptor: (Ljava/util/function/Predicate;)Ljava/util/List;
    flags: (0x0000) 
    Code:
      stack=2, locals=5, args_size=2
        start local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
        start local 1 // java.util.function.Predicate predicate
         0: .line 157
            new java.util.ArrayList
            dup
            invokespecial java.util.ArrayList.<init>:()V
            astore 2 /* list */
        start local 2 // java.util.List list
         1: .line 158
            aload 0 /* this */
            invokevirtual org.apache.lucene.index.DocumentsWriterPerThreadPool.iterator:()Ljava/util/Iterator;
            astore 4
            goto 9
      StackMap locals: org.apache.lucene.index.DocumentsWriterPerThreadPool java.util.function.Predicate java.util.List top java.util.Iterator
      StackMap stack:
         2: aload 4
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast org.apache.lucene.index.DocumentsWriterPerThread
            astore 3 /* perThread */
        start local 3 // org.apache.lucene.index.DocumentsWriterPerThread perThread
         3: .line 159
            aload 1 /* predicate */
            aload 3 /* perThread */
            invokeinterface java.util.function.Predicate.test:(Ljava/lang/Object;)Z
            ifeq 9
         4: .line 160
            aload 3 /* perThread */
            invokevirtual org.apache.lucene.index.DocumentsWriterPerThread.lock:()V
         5: .line 161
            aload 0 /* this */
            aload 3 /* perThread */
            invokevirtual org.apache.lucene.index.DocumentsWriterPerThreadPool.isRegistered:(Lorg/apache/lucene/index/DocumentsWriterPerThread;)Z
            ifeq 8
         6: .line 162
            aload 2 /* list */
            aload 3 /* perThread */
            invokeinterface java.util.List.add:(Ljava/lang/Object;)Z
            pop
         7: .line 163
            goto 9
         8: .line 166
      StackMap locals: org.apache.lucene.index.DocumentsWriterPerThreadPool java.util.function.Predicate java.util.List org.apache.lucene.index.DocumentsWriterPerThread java.util.Iterator
      StackMap stack:
            aload 3 /* perThread */
            invokevirtual org.apache.lucene.index.DocumentsWriterPerThread.unlock:()V
        end local 3 // org.apache.lucene.index.DocumentsWriterPerThread perThread
         9: .line 158
      StackMap locals: org.apache.lucene.index.DocumentsWriterPerThreadPool java.util.function.Predicate java.util.List top java.util.Iterator
      StackMap stack:
            aload 4
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 2
        10: .line 170
            aload 2 /* list */
            invokestatic java.util.Collections.unmodifiableList:(Ljava/util/List;)Ljava/util/List;
            areturn
        end local 2 // java.util.List list
        end local 1 // java.util.function.Predicate predicate
        end local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0   11     0       this  Lorg/apache/lucene/index/DocumentsWriterPerThreadPool;
            0   11     1  predicate  Ljava/util/function/Predicate<Lorg/apache/lucene/index/DocumentsWriterPerThread;>;
            1   11     2       list  Ljava/util/List<Lorg/apache/lucene/index/DocumentsWriterPerThread;>;
            3    9     3  perThread  Lorg/apache/lucene/index/DocumentsWriterPerThread;
    Signature: (Ljava/util/function/Predicate<Lorg/apache/lucene/index/DocumentsWriterPerThread;>;)Ljava/util/List<Lorg/apache/lucene/index/DocumentsWriterPerThread;>;
    MethodParameters:
           Name  Flags
      predicate  

  synchronized boolean checkout(org.apache.lucene.index.DocumentsWriterPerThread);
    descriptor: (Lorg/apache/lucene/index/DocumentsWriterPerThread;)Z
    flags: (0x0020) ACC_SYNCHRONIZED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
        start local 1 // org.apache.lucene.index.DocumentsWriterPerThread perThread
         0: .line 178
            getstatic org.apache.lucene.index.DocumentsWriterPerThreadPool.$assertionsDisabled:Z
            ifne 1
            aload 1 /* perThread */
            invokevirtual org.apache.lucene.index.DocumentsWriterPerThread.isHeldByCurrentThread:()Z
            ifne 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 179
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.dwpts:Ljava/util/Set;
            aload 1 /* perThread */
            invokeinterface java.util.Set.remove:(Ljava/lang/Object;)Z
            ifeq 4
         2: .line 180
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.freeList:Ljava/util/Deque;
            aload 1 /* perThread */
            invokeinterface java.util.Deque.remove:(Ljava/lang/Object;)Z
            pop
         3: .line 181
            goto 6
         4: .line 182
      StackMap locals:
      StackMap stack:
            getstatic org.apache.lucene.index.DocumentsWriterPerThreadPool.$assertionsDisabled:Z
            ifne 5
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.freeList:Ljava/util/Deque;
            aload 1 /* perThread */
            invokeinterface java.util.Deque.contains:(Ljava/lang/Object;)Z
            ifeq 5
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         5: .line 183
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
         6: .line 185
      StackMap locals:
      StackMap stack:
            iconst_1
            ireturn
        end local 1 // org.apache.lucene.index.DocumentsWriterPerThread perThread
        end local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    7     0       this  Lorg/apache/lucene/index/DocumentsWriterPerThreadPool;
            0    7     1  perThread  Lorg/apache/lucene/index/DocumentsWriterPerThread;
    MethodParameters:
           Name  Flags
      perThread  

  synchronized boolean isRegistered(org.apache.lucene.index.DocumentsWriterPerThread);
    descriptor: (Lorg/apache/lucene/index/DocumentsWriterPerThread;)Z
    flags: (0x0020) ACC_SYNCHRONIZED
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
        start local 1 // org.apache.lucene.index.DocumentsWriterPerThread perThread
         0: .line 192
            aload 0 /* this */
            getfield org.apache.lucene.index.DocumentsWriterPerThreadPool.dwpts:Ljava/util/Set;
            aload 1 /* perThread */
            invokeinterface java.util.Set.contains:(Ljava/lang/Object;)Z
            ireturn
        end local 1 // org.apache.lucene.index.DocumentsWriterPerThread perThread
        end local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    1     0       this  Lorg/apache/lucene/index/DocumentsWriterPerThreadPool;
            0    1     1  perThread  Lorg/apache/lucene/index/DocumentsWriterPerThread;
    MethodParameters:
           Name  Flags
      perThread  

  public synchronized void close();
    descriptor: ()V
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
         0: .line 197
            aload 0 /* this */
            iconst_1
            putfield org.apache.lucene.index.DocumentsWriterPerThreadPool.closed:Z
         1: .line 198
            return
        end local 0 // org.apache.lucene.index.DocumentsWriterPerThreadPool this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/lucene/index/DocumentsWriterPerThreadPool;
}
Signature: Ljava/lang/Object;Ljava/lang/Iterable<Lorg/apache/lucene/index/DocumentsWriterPerThread;>;Ljava/io/Closeable;
SourceFile: "DocumentsWriterPerThreadPool.java"