java/11 : java.base/java/lang/invoke/MethodType$ConcurrentWeakInternSet.class

MethodType$ConcurrentWeakInternSet
https://openjdk.java.net/
GPLv2 + Classpath Exception
class java.lang.invoke.MethodType$ConcurrentWeakInternSet<T>
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: java.lang.invoke.MethodType$ConcurrentWeakInternSet
  super_class: java.lang.Object
{
  private final java.util.concurrent.ConcurrentMap<java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry<T>, java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry<T>> map;
    descriptor: Ljava/util/concurrent/ConcurrentMap;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/concurrent/ConcurrentMap<Ljava/lang/invoke/MethodType$ConcurrentWeakInternSet$WeakEntry<TT;>;Ljava/lang/invoke/MethodType$ConcurrentWeakInternSet$WeakEntry<TT;>;>;

  private final java.lang.ref.ReferenceQueue<T> stale;
    descriptor: Ljava/lang/ref/ReferenceQueue;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/lang/ref/ReferenceQueue<TT;>;

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // java.lang.invoke.MethodType$ConcurrentWeakInternSet this
         0: .line 1263
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 1264
            aload 0 /* this */
            new java.util.concurrent.ConcurrentHashMap
            dup
            sipush 512
            invokespecial java.util.concurrent.ConcurrentHashMap.<init>:(I)V
            putfield java.lang.invoke.MethodType$ConcurrentWeakInternSet.map:Ljava/util/concurrent/ConcurrentMap;
         2: .line 1265
            aload 0 /* this */
            new java.lang.ref.ReferenceQueue
            dup
            invokespecial java.lang.ref.ReferenceQueue.<init>:()V
            putfield java.lang.invoke.MethodType$ConcurrentWeakInternSet.stale:Ljava/lang/ref/ReferenceQueue;
         3: .line 1266
            return
        end local 0 // java.lang.invoke.MethodType$ConcurrentWeakInternSet this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Ljava/lang/invoke/MethodType$ConcurrentWeakInternSet<TT;>;

  public T get();
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=4, args_size=2
        start local 0 // java.lang.invoke.MethodType$ConcurrentWeakInternSet this
        start local 1 // java.lang.Object elem
         0: .line 1276
            aload 1 /* elem */
            ifnonnull 1
            new java.lang.NullPointerException
            dup
            invokespecial java.lang.NullPointerException.<init>:()V
            athrow
         1: .line 1277
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            invokevirtual java.lang.invoke.MethodType$ConcurrentWeakInternSet.expungeStaleElements:()V
         2: .line 1279
            aload 0 /* this */
            getfield java.lang.invoke.MethodType$ConcurrentWeakInternSet.map:Ljava/util/concurrent/ConcurrentMap;
            new java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry
            dup
            aload 1 /* elem */
            invokespecial java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry.<init>:(Ljava/lang/Object;)V
            invokeinterface java.util.concurrent.ConcurrentMap.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry
            astore 2 /* value */
        start local 2 // java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry value
         3: .line 1280
            aload 2 /* value */
            ifnull 7
         4: .line 1281
            aload 2 /* value */
            invokevirtual java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry.get:()Ljava/lang/Object;
            astore 3 /* res */
        start local 3 // java.lang.Object res
         5: .line 1282
            aload 3 /* res */
            ifnull 7
         6: .line 1283
            aload 3 /* res */
            areturn
        end local 3 // java.lang.Object res
         7: .line 1286
      StackMap locals: java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry
      StackMap stack:
            aconst_null
            areturn
        end local 2 // java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry value
        end local 1 // java.lang.Object elem
        end local 0 // java.lang.invoke.MethodType$ConcurrentWeakInternSet this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    8     0   this  Ljava/lang/invoke/MethodType$ConcurrentWeakInternSet<TT;>;
            0    8     1   elem  TT;
            3    8     2  value  Ljava/lang/invoke/MethodType$ConcurrentWeakInternSet$WeakEntry<TT;>;
            5    7     3    res  TT;
    Signature: (TT;)TT;
    MethodParameters:
      Name  Flags
      elem  

  public T add();
    descriptor: (Ljava/lang/Object;)Ljava/lang/Object;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=5, args_size=2
        start local 0 // java.lang.invoke.MethodType$ConcurrentWeakInternSet this
        start local 1 // java.lang.Object elem
         0: .line 1299
            aload 1 /* elem */
            ifnonnull 1
            new java.lang.NullPointerException
            dup
            invokespecial java.lang.NullPointerException.<init>:()V
            athrow
         1: .line 1306
      StackMap locals:
      StackMap stack:
            new java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry
            dup
            aload 1 /* elem */
            aload 0 /* this */
            getfield java.lang.invoke.MethodType$ConcurrentWeakInternSet.stale:Ljava/lang/ref/ReferenceQueue;
            invokespecial java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry.<init>:(Ljava/lang/Object;Ljava/lang/ref/ReferenceQueue;)V
            astore 3 /* e */
        start local 3 // java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry e
         2: .line 1308
      StackMap locals: java.lang.invoke.MethodType$ConcurrentWeakInternSet java.lang.Object top java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry
      StackMap stack:
            aload 0 /* this */
            invokevirtual java.lang.invoke.MethodType$ConcurrentWeakInternSet.expungeStaleElements:()V
         3: .line 1309
            aload 0 /* this */
            getfield java.lang.invoke.MethodType$ConcurrentWeakInternSet.map:Ljava/util/concurrent/ConcurrentMap;
            aload 3 /* e */
            aload 3 /* e */
            invokeinterface java.util.concurrent.ConcurrentMap.putIfAbsent:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry
            astore 4 /* exist */
        start local 4 // java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry exist
         4: .line 1310
            aload 4 /* exist */
            ifnonnull 5
            aload 1 /* elem */
            goto 6
      StackMap locals: java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry
      StackMap stack:
         5: aload 4 /* exist */
            invokevirtual java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry.get:()Ljava/lang/Object;
      StackMap locals:
      StackMap stack: java.lang.Object
         6: astore 2 /* interned */
        end local 4 // java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry exist
        start local 2 // java.lang.Object interned
         7: .line 1311
            aload 2 /* interned */
            ifnull 2
         8: .line 1312
            aload 2 /* interned */
            areturn
        end local 3 // java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry e
        end local 2 // java.lang.Object interned
        end local 1 // java.lang.Object elem
        end local 0 // java.lang.invoke.MethodType$ConcurrentWeakInternSet this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    9     0      this  Ljava/lang/invoke/MethodType$ConcurrentWeakInternSet<TT;>;
            0    9     1      elem  TT;
            7    9     2  interned  TT;
            2    9     3         e  Ljava/lang/invoke/MethodType$ConcurrentWeakInternSet$WeakEntry<TT;>;
            4    7     4     exist  Ljava/lang/invoke/MethodType$ConcurrentWeakInternSet$WeakEntry<TT;>;
    Signature: (TT;)TT;
    MethodParameters:
      Name  Flags
      elem  

  private void expungeStaleElements();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // java.lang.invoke.MethodType$ConcurrentWeakInternSet this
         0: .line 1317
            goto 2
        start local 1 // java.lang.ref.Reference reference
         1: .line 1318
      StackMap locals: java.lang.ref.Reference
      StackMap stack:
            aload 0 /* this */
            getfield java.lang.invoke.MethodType$ConcurrentWeakInternSet.map:Ljava/util/concurrent/ConcurrentMap;
            aload 1 /* reference */
            invokeinterface java.util.concurrent.ConcurrentMap.remove:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
        end local 1 // java.lang.ref.Reference reference
         2: .line 1317
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield java.lang.invoke.MethodType$ConcurrentWeakInternSet.stale:Ljava/lang/ref/ReferenceQueue;
            invokevirtual java.lang.ref.ReferenceQueue.poll:()Ljava/lang/ref/Reference;
            dup
            astore 1 /* reference */
        start local 1 // java.lang.ref.Reference reference
         3: ifnonnull 1
         4: .line 1320
            return
        end local 1 // java.lang.ref.Reference reference
        end local 0 // java.lang.invoke.MethodType$ConcurrentWeakInternSet this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    5     0       this  Ljava/lang/invoke/MethodType$ConcurrentWeakInternSet<TT;>;
            1    2     1  reference  Ljava/lang/ref/Reference<+TT;>;
            3    5     1  reference  Ljava/lang/ref/Reference<+TT;>;
}
Signature: <T:Ljava/lang/Object;>Ljava/lang/Object;
SourceFile: "MethodType.java"
NestHost: java.lang.invoke.MethodType
InnerClasses:
  private ConcurrentWeakInternSet = java.lang.invoke.MethodType$ConcurrentWeakInternSet of java.lang.invoke.MethodType
  private WeakEntry = java.lang.invoke.MethodType$ConcurrentWeakInternSet$WeakEntry of java.lang.invoke.MethodType$ConcurrentWeakInternSet
/

java/ 11/ java.base/java/lang/invoke/MethodType$ConcurrentWeakInternSet.class
