https://github.com/jruby/jruby/jruby-core: JRuby is the effort to recreate the Ruby (https://www.ruby-lang.org) interpreter in Java. (JRuby)
  • headius
  • enebo
  • wmeissner
  • BanzaiMan
  • mkristian 
public class org.jruby.runtime.ObjectSpace
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.jruby.runtime.ObjectSpace
  super_class: java.lang.Object
{
  private final java.lang.ref.ReferenceQueue<java.lang.Object> deadReferences;
    descriptor: Ljava/lang/ref/ReferenceQueue;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/lang/ref/ReferenceQueue<Ljava/lang/Object;>;

  private final java.lang.ref.ReferenceQueue<org.jruby.runtime.ObjectSpace$ObjectGroup> objectGroupReferenceQueue;
    descriptor: Ljava/lang/ref/ReferenceQueue;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/lang/ref/ReferenceQueue<Lorg/jruby/runtime/ObjectSpace$ObjectGroup;>;

  private org.jruby.runtime.ObjectSpace$WeakReferenceListNode top;
    descriptor: Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;
    flags: (0x0002) ACC_PRIVATE

  private java.lang.ref.ReferenceQueue deadIdentityReferences;
    descriptor: Ljava/lang/ref/ReferenceQueue;
    flags: (0x0002) ACC_PRIVATE

  private final java.util.Map<java.lang.Long, org.jruby.runtime.ObjectSpace$IdReference> identities;
    descriptor: Ljava/util/Map;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/Map<Ljava/lang/Long;Lorg/jruby/runtime/ObjectSpace$IdReference;>;

  private final java.util.Map<org.jruby.runtime.builtin.IRubyObject, java.lang.Long> identitiesByObject;
    descriptor: Ljava/util/Map;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/Map<Lorg/jruby/runtime/builtin/IRubyObject;Ljava/lang/Long;>;

  private static final java.util.concurrent.atomic.AtomicLong maxId;
    descriptor: Ljava/util/concurrent/atomic/AtomicLong;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private final java.lang.ThreadLocal<java.lang.ref.Reference<org.jruby.runtime.ObjectSpace$ObjectGroup>> currentObjectGroup;
    descriptor: Ljava/lang/ThreadLocal;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/lang/ThreadLocal<Ljava/lang/ref/Reference<Lorg/jruby/runtime/ObjectSpace$ObjectGroup;>;>;

  private java.lang.ref.Reference<org.jruby.runtime.ObjectSpace$GroupSweeper> groupSweeperReference;
    descriptor: Ljava/lang/ref/Reference;
    flags: (0x0002) ACC_PRIVATE
    Signature: Ljava/lang/ref/Reference<Lorg/jruby/runtime/ObjectSpace$GroupSweeper;>;

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=4, locals=0, args_size=0
         0: .line 66
            new java.util.concurrent.atomic.AtomicLong
            dup
            ldc 1000
            invokespecial java.util.concurrent.atomic.AtomicLong.<init>:(J)V
            putstatic org.jruby.runtime.ObjectSpace.maxId:Ljava/util/concurrent/atomic/AtomicLong;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // org.jruby.runtime.ObjectSpace this
         0: .line 58
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 59
            aload 0 /* this */
            new java.lang.ref.ReferenceQueue
            dup
            invokespecial java.lang.ref.ReferenceQueue.<init>:()V
            putfield org.jruby.runtime.ObjectSpace.deadReferences:Ljava/lang/ref/ReferenceQueue;
         2: .line 60
            aload 0 /* this */
            new java.lang.ref.ReferenceQueue
            dup
            invokespecial java.lang.ref.ReferenceQueue.<init>:()V
            putfield org.jruby.runtime.ObjectSpace.objectGroupReferenceQueue:Ljava/lang/ref/ReferenceQueue;
         3: .line 63
            aload 0 /* this */
            new java.lang.ref.ReferenceQueue
            dup
            invokespecial java.lang.ref.ReferenceQueue.<init>:()V
            putfield org.jruby.runtime.ObjectSpace.deadIdentityReferences:Ljava/lang/ref/ReferenceQueue;
         4: .line 64
            aload 0 /* this */
            new java.util.HashMap
            dup
            bipush 64
            invokespecial java.util.HashMap.<init>:(I)V
            putfield org.jruby.runtime.ObjectSpace.identities:Ljava/util/Map;
         5: .line 65
            aload 0 /* this */
            new org.jruby.util.WeakIdentityHashMap
            dup
            bipush 64
            invokespecial org.jruby.util.WeakIdentityHashMap.<init>:(I)V
            putfield org.jruby.runtime.ObjectSpace.identitiesByObject:Ljava/util/Map;
         6: .line 67
            aload 0 /* this */
            new java.lang.ThreadLocal
            dup
            invokespecial java.lang.ThreadLocal.<init>:()V
            putfield org.jruby.runtime.ObjectSpace.currentObjectGroup:Ljava/lang/ThreadLocal;
         7: .line 58
            return
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    8     0  this  Lorg/jruby/runtime/ObjectSpace;

  public void registerObjectId(long, org.jruby.runtime.builtin.IRubyObject);
    descriptor: (JLorg/jruby/runtime/builtin/IRubyObject;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=8, locals=5, args_size=3
        start local 0 // org.jruby.runtime.ObjectSpace this
        start local 1 // long id
        start local 3 // org.jruby.runtime.builtin.IRubyObject object
         0: .line 71
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.identities:Ljava/util/Map;
            dup
            astore 4
            monitorenter
         1: .line 72
            aload 0 /* this */
            invokevirtual org.jruby.runtime.ObjectSpace.cleanIdentities:()V
         2: .line 73
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.identities:Ljava/util/Map;
            lload 1 /* id */
            invokestatic java.lang.Long.valueOf:(J)Ljava/lang/Long;
            new org.jruby.runtime.ObjectSpace$IdReference
            dup
            aload 3 /* object */
            lload 1 /* id */
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.deadIdentityReferences:Ljava/lang/ref/ReferenceQueue;
            invokespecial org.jruby.runtime.ObjectSpace$IdReference.<init>:(Lorg/jruby/runtime/builtin/IRubyObject;JLjava/lang/ref/ReferenceQueue;)V
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         3: .line 74
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.identitiesByObject:Ljava/util/Map;
            aload 3 /* object */
            lload 1 /* id */
            invokestatic java.lang.Long.valueOf:(J)Ljava/lang/Long;
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         4: .line 71
            aload 4
            monitorexit
         5: goto 8
      StackMap locals: org.jruby.runtime.ObjectSpace long org.jruby.runtime.builtin.IRubyObject java.util.Map
      StackMap stack: java.lang.Throwable
         6: aload 4
            monitorexit
         7: athrow
         8: .line 76
      StackMap locals:
      StackMap stack:
            return
        end local 3 // org.jruby.runtime.builtin.IRubyObject object
        end local 1 // long id
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    9     0    this  Lorg/jruby/runtime/ObjectSpace;
            0    9     1      id  J
            0    9     3  object  Lorg/jruby/runtime/builtin/IRubyObject;
      Exception table:
        from    to  target  type
           1     5       6  any
           6     7       6  any
    MethodParameters:
        Name  Flags
      id      
      object  

  public static long calculateObjectId(java.lang.Object);
    descriptor: (Ljava/lang/Object;)J
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // java.lang.Object object
         0: .line 80
            getstatic org.jruby.runtime.ObjectSpace.maxId:Ljava/util/concurrent/atomic/AtomicLong;
            invokevirtual java.util.concurrent.atomic.AtomicLong.getAndIncrement:()J
            ldc 2
            lmul
            lreturn
        end local 0 // java.lang.Object object
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0  object  Ljava/lang/Object;
    MethodParameters:
        Name  Flags
      object  

  public long createAndRegisterObjectId(org.jruby.runtime.builtin.IRubyObject);
    descriptor: (Lorg/jruby/runtime/builtin/IRubyObject;)J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=2
        start local 0 // org.jruby.runtime.ObjectSpace this
        start local 1 // org.jruby.runtime.builtin.IRubyObject rubyObject
         0: .line 84
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.identities:Ljava/util/Map;
            dup
            astore 2
            monitorenter
         1: .line 85
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.identitiesByObject:Ljava/util/Map;
            aload 1 /* rubyObject */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.lang.Long
            astore 3 /* longId */
        start local 3 // java.lang.Long longId
         2: .line 86
            aload 3 /* longId */
            ifnonnull 4
         3: .line 87
            aload 0 /* this */
            aload 1 /* rubyObject */
            invokevirtual org.jruby.runtime.ObjectSpace.createId:(Lorg/jruby/runtime/builtin/IRubyObject;)J
            invokestatic java.lang.Long.valueOf:(J)Ljava/lang/Long;
            astore 3 /* longId */
         4: .line 89
      StackMap locals: java.util.Map java.lang.Long
      StackMap stack:
            aload 3 /* longId */
            invokevirtual java.lang.Long.longValue:()J
            aload 2
            monitorexit
         5: lreturn
        end local 3 // java.lang.Long longId
         6: .line 84
      StackMap locals: org.jruby.runtime.ObjectSpace org.jruby.runtime.builtin.IRubyObject java.util.Map
      StackMap stack: java.lang.Throwable
            aload 2
            monitorexit
         7: athrow
        end local 1 // org.jruby.runtime.builtin.IRubyObject rubyObject
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    8     0        this  Lorg/jruby/runtime/ObjectSpace;
            0    8     1  rubyObject  Lorg/jruby/runtime/builtin/IRubyObject;
            2    6     3      longId  Ljava/lang/Long;
      Exception table:
        from    to  target  type
           1     5       6  any
           6     7       6  any
    MethodParameters:
            Name  Flags
      rubyObject  

  private long createId(org.jruby.runtime.builtin.IRubyObject);
    descriptor: (Lorg/jruby/runtime/builtin/IRubyObject;)J
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=4, locals=4, args_size=2
        start local 0 // org.jruby.runtime.ObjectSpace this
        start local 1 // org.jruby.runtime.builtin.IRubyObject object
         0: .line 94
            aload 1 /* object */
            invokestatic org.jruby.runtime.ObjectSpace.calculateObjectId:(Ljava/lang/Object;)J
            lstore 2 /* id */
        start local 2 // long id
         1: .line 95
            aload 0 /* this */
            lload 2 /* id */
            aload 1 /* object */
            invokevirtual org.jruby.runtime.ObjectSpace.registerObjectId:(JLorg/jruby/runtime/builtin/IRubyObject;)V
         2: .line 96
            lload 2 /* id */
            lreturn
        end local 2 // long id
        end local 1 // org.jruby.runtime.builtin.IRubyObject object
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lorg/jruby/runtime/ObjectSpace;
            0    3     1  object  Lorg/jruby/runtime/builtin/IRubyObject;
            1    3     2      id  J
    MethodParameters:
        Name  Flags
      object  

  public org.jruby.runtime.builtin.IRubyObject id2ref(long);
    descriptor: (J)Lorg/jruby/runtime/builtin/IRubyObject;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=5, args_size=2
        start local 0 // org.jruby.runtime.ObjectSpace this
        start local 1 // long id
         0: .line 100
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.identities:Ljava/util/Map;
            dup
            astore 3
            monitorenter
         1: .line 101
            aload 0 /* this */
            invokevirtual org.jruby.runtime.ObjectSpace.cleanIdentities:()V
         2: .line 102
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.identities:Ljava/util/Map;
            lload 1 /* id */
            invokestatic java.lang.Long.valueOf:(J)Ljava/lang/Long;
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast org.jruby.runtime.ObjectSpace$IdReference
            astore 4 /* reference */
        start local 4 // org.jruby.runtime.ObjectSpace$IdReference reference
         3: .line 103
            aload 4 /* reference */
            ifnonnull 6
         4: .line 104
            aload 3
            monitorexit
         5: aconst_null
            areturn
         6: .line 106
      StackMap locals: java.util.Map org.jruby.runtime.ObjectSpace$IdReference
      StackMap stack:
            aload 4 /* reference */
            invokevirtual org.jruby.runtime.ObjectSpace$IdReference.get:()Ljava/lang/Object;
            checkcast org.jruby.runtime.builtin.IRubyObject
            aload 3
            monitorexit
         7: areturn
        end local 4 // org.jruby.runtime.ObjectSpace$IdReference reference
         8: .line 100
      StackMap locals: org.jruby.runtime.ObjectSpace long java.util.Map
      StackMap stack: java.lang.Throwable
            aload 3
            monitorexit
         9: athrow
        end local 1 // long id
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0   10     0       this  Lorg/jruby/runtime/ObjectSpace;
            0   10     1         id  J
            3    8     4  reference  Lorg/jruby/runtime/ObjectSpace$IdReference;
      Exception table:
        from    to  target  type
           1     5       8  any
           6     7       8  any
           8     9       8  any
    MethodParameters:
      Name  Flags
      id    

  private void cleanIdentities();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // org.jruby.runtime.ObjectSpace this
         0: .line 112
            goto 2
        start local 1 // org.jruby.runtime.ObjectSpace$IdReference ref
         1: .line 113
      StackMap locals: org.jruby.runtime.ObjectSpace$IdReference
      StackMap stack:
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.identities:Ljava/util/Map;
            aload 1 /* ref */
            getfield org.jruby.runtime.ObjectSpace$IdReference.id:J
            invokestatic java.lang.Long.valueOf:(J)Ljava/lang/Long;
            invokeinterface java.util.Map.remove:(Ljava/lang/Object;)Ljava/lang/Object;
            pop
        end local 1 // org.jruby.runtime.ObjectSpace$IdReference ref
         2: .line 112
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.deadIdentityReferences:Ljava/lang/ref/ReferenceQueue;
            invokevirtual java.lang.ref.ReferenceQueue.poll:()Ljava/lang/ref/Reference;
            checkcast org.jruby.runtime.ObjectSpace$IdReference
            dup
            astore 1 /* ref */
        start local 1 // org.jruby.runtime.ObjectSpace$IdReference ref
         3: ifnonnull 1
         4: .line 115
            return
        end local 1 // org.jruby.runtime.ObjectSpace$IdReference ref
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/jruby/runtime/ObjectSpace;
            1    2     1   ref  Lorg/jruby/runtime/ObjectSpace$IdReference;
            3    5     1   ref  Lorg/jruby/runtime/ObjectSpace$IdReference;

  public long idOf(org.jruby.runtime.builtin.IRubyObject);
    descriptor: (Lorg/jruby/runtime/builtin/IRubyObject;)J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.jruby.runtime.ObjectSpace this
        start local 1 // org.jruby.runtime.builtin.IRubyObject rubyObject
         0: .line 119
            aload 0 /* this */
            aload 1 /* rubyObject */
            invokevirtual org.jruby.runtime.ObjectSpace.createAndRegisterObjectId:(Lorg/jruby/runtime/builtin/IRubyObject;)J
            lreturn
        end local 1 // org.jruby.runtime.builtin.IRubyObject rubyObject
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    1     0        this  Lorg/jruby/runtime/ObjectSpace;
            0    1     1  rubyObject  Lorg/jruby/runtime/builtin/IRubyObject;
    RuntimeVisibleAnnotations: 
      java.lang.Deprecated()
    MethodParameters:
            Name  Flags
      rubyObject  

  public void addFinalizer(org.jruby.runtime.builtin.IRubyObject, org.jruby.runtime.builtin.IRubyObject);
    descriptor: (Lorg/jruby/runtime/builtin/IRubyObject;Lorg/jruby/runtime/builtin/IRubyObject;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.jruby.runtime.ObjectSpace this
        start local 1 // org.jruby.runtime.builtin.IRubyObject object
        start local 2 // org.jruby.runtime.builtin.IRubyObject proc
         0: .line 123
            aload 1 /* object */
            aload 2 /* proc */
            invokeinterface org.jruby.runtime.builtin.IRubyObject.addFinalizer:(Lorg/jruby/runtime/builtin/IRubyObject;)V
         1: .line 124
            return
        end local 2 // org.jruby.runtime.builtin.IRubyObject proc
        end local 1 // org.jruby.runtime.builtin.IRubyObject object
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0    this  Lorg/jruby/runtime/ObjectSpace;
            0    2     1  object  Lorg/jruby/runtime/builtin/IRubyObject;
            0    2     2    proc  Lorg/jruby/runtime/builtin/IRubyObject;
    MethodParameters:
        Name  Flags
      object  
      proc    

  public void removeFinalizers(long);
    descriptor: (J)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=4, args_size=2
        start local 0 // org.jruby.runtime.ObjectSpace this
        start local 1 // long id
         0: .line 127
            aload 0 /* this */
            lload 1 /* id */
            invokevirtual org.jruby.runtime.ObjectSpace.id2ref:(J)Lorg/jruby/runtime/builtin/IRubyObject;
            astore 3 /* object */
        start local 3 // org.jruby.runtime.builtin.IRubyObject object
         1: .line 128
            aload 3 /* object */
            ifnull 3
         2: .line 129
            aload 3 /* object */
            invokeinterface org.jruby.runtime.builtin.IRubyObject.removeFinalizers:()V
         3: .line 131
      StackMap locals: org.jruby.runtime.builtin.IRubyObject
      StackMap stack:
            return
        end local 3 // org.jruby.runtime.builtin.IRubyObject object
        end local 1 // long id
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    4     0    this  Lorg/jruby/runtime/ObjectSpace;
            0    4     1      id  J
            1    4     3  object  Lorg/jruby/runtime/builtin/IRubyObject;
    MethodParameters:
      Name  Flags
      id    

  public void add(org.jruby.runtime.builtin.IRubyObject);
    descriptor: (Lorg/jruby/runtime/builtin/IRubyObject;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.jruby.runtime.ObjectSpace this
        start local 1 // org.jruby.runtime.builtin.IRubyObject object
         0: .line 134
            aload 1 /* object */
            invokeinterface org.jruby.runtime.builtin.IRubyObject.getMetaClass:()Lorg/jruby/RubyClass;
            ifnull 4
            aload 1 /* object */
            instanceof org.jruby.java.proxies.JavaProxy
            ifne 4
         1: .line 138
            aload 1 /* object */
            invokeinterface org.jruby.runtime.builtin.IRubyObject.isFrozen:()Z
            ifeq 2
            return
         2: .line 140
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            invokevirtual org.jruby.runtime.ObjectSpace.getObjectGroup:()Lorg/jruby/runtime/ObjectSpace$ObjectGroup;
            aload 1 /* object */
            invokevirtual org.jruby.runtime.ObjectSpace$ObjectGroup.add:(Lorg/jruby/runtime/builtin/IRubyObject;)Z
            pop
         3: .line 141
            goto 5
         4: .line 142
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 1 /* object */
            invokevirtual org.jruby.runtime.ObjectSpace.addIndividualWeakReference:(Lorg/jruby/runtime/builtin/IRubyObject;)V
         5: .line 144
      StackMap locals:
      StackMap stack:
            return
        end local 1 // org.jruby.runtime.builtin.IRubyObject object
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    6     0    this  Lorg/jruby/runtime/ObjectSpace;
            0    6     1  object  Lorg/jruby/runtime/builtin/IRubyObject;
    MethodParameters:
        Name  Flags
      object  

  private synchronized void addIndividualWeakReference(org.jruby.runtime.builtin.IRubyObject);
    descriptor: (Lorg/jruby/runtime/builtin/IRubyObject;)V
    flags: (0x0022) ACC_PRIVATE, ACC_SYNCHRONIZED
    Code:
      stack=7, locals=2, args_size=2
        start local 0 // org.jruby.runtime.ObjectSpace this
        start local 1 // org.jruby.runtime.builtin.IRubyObject object
         0: .line 147
            aload 0 /* this */
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.deadReferences:Ljava/lang/ref/ReferenceQueue;
            invokevirtual org.jruby.runtime.ObjectSpace.cleanup:(Ljava/lang/ref/ReferenceQueue;)V
         1: .line 148
            aload 0 /* this */
            new org.jruby.runtime.ObjectSpace$WeakReferenceListNode
            dup
            aload 0 /* this */
            aload 1 /* object */
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.deadReferences:Ljava/lang/ref/ReferenceQueue;
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.top:Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;
            invokespecial org.jruby.runtime.ObjectSpace$WeakReferenceListNode.<init>:(Lorg/jruby/runtime/ObjectSpace;Ljava/lang/Object;Ljava/lang/ref/ReferenceQueue;Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;)V
            putfield org.jruby.runtime.ObjectSpace.top:Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;
         2: .line 149
            return
        end local 1 // org.jruby.runtime.builtin.IRubyObject object
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lorg/jruby/runtime/ObjectSpace;
            0    3     1  object  Lorg/jruby/runtime/builtin/IRubyObject;
    MethodParameters:
        Name  Flags
      object  

  private synchronized void registerGroupSweeper();
    descriptor: ()V
    flags: (0x0022) ACC_PRIVATE, ACC_SYNCHRONIZED
    Code:
      stack=6, locals=1, args_size=1
        start local 0 // org.jruby.runtime.ObjectSpace this
         0: .line 152
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.groupSweeperReference:Ljava/lang/ref/Reference;
            ifnull 1
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.groupSweeperReference:Ljava/lang/ref/Reference;
            invokevirtual java.lang.ref.Reference.get:()Ljava/lang/Object;
            ifnonnull 2
         1: .line 153
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            new java.lang.ref.WeakReference
            dup
            new org.jruby.runtime.ObjectSpace$GroupSweeper
            dup
            aload 0 /* this */
            invokespecial org.jruby.runtime.ObjectSpace$GroupSweeper.<init>:(Lorg/jruby/runtime/ObjectSpace;)V
            invokespecial java.lang.ref.WeakReference.<init>:(Ljava/lang/Object;)V
            putfield org.jruby.runtime.ObjectSpace.groupSweeperReference:Ljava/lang/ref/Reference;
         2: .line 155
      StackMap locals:
      StackMap stack:
            return
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/jruby/runtime/ObjectSpace;

  private synchronized void splitObjectGroups();
    descriptor: ()V
    flags: (0x0022) ACC_PRIVATE, ACC_SYNCHRONIZED
    Code:
      stack=7, locals=6, args_size=1
        start local 0 // org.jruby.runtime.ObjectSpace this
         0: .line 158
            aload 0 /* this */
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.objectGroupReferenceQueue:Ljava/lang/ref/ReferenceQueue;
            invokevirtual org.jruby.runtime.ObjectSpace.cleanup:(Ljava/lang/ref/ReferenceQueue;)V
         1: .line 161
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.top:Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;
            astore 1 /* node */
        start local 1 // org.jruby.runtime.ObjectSpace$WeakReferenceListNode node
         2: .line 162
            goto 14
         3: .line 163
      StackMap locals: org.jruby.runtime.ObjectSpace$WeakReferenceListNode
      StackMap stack:
            aload 1 /* node */
            invokevirtual org.jruby.runtime.ObjectSpace$WeakReferenceListNode.get:()Ljava/lang/Object;
            astore 2 /* obj */
        start local 2 // java.lang.Object obj
         4: .line 164
            aload 2 /* obj */
            instanceof org.jruby.runtime.ObjectSpace$ObjectGroup
            ifeq 13
         5: .line 165
            aload 2 /* obj */
            checkcast org.jruby.runtime.ObjectSpace$ObjectGroup
            astore 3 /* objectGroup */
        start local 3 // org.jruby.runtime.ObjectSpace$ObjectGroup objectGroup
         6: .line 166
            iconst_0
            istore 4 /* i */
        start local 4 // int i
         7: goto 12
         8: .line 167
      StackMap locals: java.lang.Object org.jruby.runtime.ObjectSpace$ObjectGroup int
      StackMap stack:
            aload 3 /* objectGroup */
            iload 4 /* i */
            aconst_null
            invokevirtual org.jruby.runtime.ObjectSpace$ObjectGroup.set:(ILorg/jruby/runtime/builtin/IRubyObject;)Lorg/jruby/runtime/builtin/IRubyObject;
            astore 5 /* rubyObject */
        start local 5 // org.jruby.runtime.builtin.IRubyObject rubyObject
         9: .line 168
            aload 5 /* rubyObject */
            ifnull 11
        10: .line 169
            aload 0 /* this */
            new org.jruby.runtime.ObjectSpace$WeakReferenceListNode
            dup
            aload 0 /* this */
            aload 5 /* rubyObject */
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.deadReferences:Ljava/lang/ref/ReferenceQueue;
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.top:Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;
            invokespecial org.jruby.runtime.ObjectSpace$WeakReferenceListNode.<init>:(Lorg/jruby/runtime/ObjectSpace;Ljava/lang/Object;Ljava/lang/ref/ReferenceQueue;Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;)V
            putfield org.jruby.runtime.ObjectSpace.top:Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;
        end local 5 // org.jruby.runtime.builtin.IRubyObject rubyObject
        11: .line 166
      StackMap locals:
      StackMap stack:
            iinc 4 /* i */ 1
      StackMap locals:
      StackMap stack:
        12: iload 4 /* i */
            aload 3 /* objectGroup */
            invokevirtual org.jruby.runtime.ObjectSpace$ObjectGroup.size:()I
            if_icmplt 8
        end local 4 // int i
        end local 3 // org.jruby.runtime.ObjectSpace$ObjectGroup objectGroup
        13: .line 173
      StackMap locals:
      StackMap stack:
            aload 1 /* node */
            getfield org.jruby.runtime.ObjectSpace$WeakReferenceListNode.nextNode:Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;
            astore 1 /* node */
        end local 2 // java.lang.Object obj
        14: .line 162
      StackMap locals:
      StackMap stack:
            aload 1 /* node */
            ifnonnull 3
        15: .line 175
            return
        end local 1 // org.jruby.runtime.ObjectSpace$WeakReferenceListNode node
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0   16     0         this  Lorg/jruby/runtime/ObjectSpace;
            2   16     1         node  Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;
            4   14     2          obj  Ljava/lang/Object;
            6   13     3  objectGroup  Lorg/jruby/runtime/ObjectSpace$ObjectGroup;
            7   13     4            i  I
            9   11     5   rubyObject  Lorg/jruby/runtime/builtin/IRubyObject;

  public synchronized java.util.Iterator iterator(org.jruby.RubyModule);
    descriptor: (Lorg/jruby/RubyModule;)Ljava/util/Iterator;
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=4, locals=7, args_size=2
        start local 0 // org.jruby.runtime.ObjectSpace this
        start local 1 // org.jruby.RubyModule rubyClass
         0: .line 178
            new java.util.ArrayList
            dup
            bipush 64
            invokespecial java.util.ArrayList.<init>:(I)V
            astore 2 /* objList */
        start local 2 // java.util.ArrayList objList
         1: .line 179
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.top:Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;
            astore 3 /* current */
        start local 3 // org.jruby.runtime.ObjectSpace$WeakReferenceListNode current
         2: .line 180
            goto 16
         3: .line 181
      StackMap locals: java.util.ArrayList org.jruby.runtime.ObjectSpace$WeakReferenceListNode
      StackMap stack:
            aload 3 /* current */
            invokevirtual org.jruby.runtime.ObjectSpace$WeakReferenceListNode.get:()Ljava/lang/Object;
            astore 4 /* obj */
        start local 4 // java.lang.Object obj
         4: .line 182
            aload 4 /* obj */
            instanceof org.jruby.runtime.builtin.IRubyObject
            ifeq 9
         5: .line 183
            aload 4 /* obj */
            checkcast org.jruby.runtime.builtin.IRubyObject
            astore 5 /* rubyObject */
        start local 5 // org.jruby.runtime.builtin.IRubyObject rubyObject
         6: .line 184
            aload 1 /* rubyClass */
            aload 5 /* rubyObject */
            invokevirtual org.jruby.RubyModule.isInstance:(Lorg/jruby/runtime/builtin/IRubyObject;)Z
            ifeq 15
         7: .line 185
            aload 2 /* objList */
            aload 3 /* current */
            invokevirtual java.util.ArrayList.add:(Ljava/lang/Object;)Z
            pop
        end local 5 // org.jruby.runtime.builtin.IRubyObject rubyObject
         8: .line 188
            goto 15
      StackMap locals: java.lang.Object
      StackMap stack:
         9: aload 4 /* obj */
            instanceof org.jruby.runtime.ObjectSpace$ObjectGroup
            ifeq 15
        10: .line 189
            aload 4 /* obj */
            checkcast org.jruby.runtime.ObjectSpace$ObjectGroup
            invokevirtual org.jruby.runtime.ObjectSpace$ObjectGroup.iterator:()Ljava/util/Iterator;
            astore 6
            goto 14
      StackMap locals: org.jruby.runtime.ObjectSpace org.jruby.RubyModule java.util.ArrayList org.jruby.runtime.ObjectSpace$WeakReferenceListNode java.lang.Object top java.util.Iterator
      StackMap stack:
        11: aload 6
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast org.jruby.runtime.builtin.IRubyObject
            astore 5 /* rubyObject */
        start local 5 // org.jruby.runtime.builtin.IRubyObject rubyObject
        12: .line 190
            aload 5 /* rubyObject */
            ifnull 14
            aload 1 /* rubyClass */
            aload 5 /* rubyObject */
            invokevirtual org.jruby.RubyModule.isInstance:(Lorg/jruby/runtime/builtin/IRubyObject;)Z
            ifeq 14
        13: .line 191
            aload 2 /* objList */
            new java.lang.ref.WeakReference
            dup
            aload 5 /* rubyObject */
            invokespecial java.lang.ref.WeakReference.<init>:(Ljava/lang/Object;)V
            invokevirtual java.util.ArrayList.add:(Ljava/lang/Object;)Z
            pop
        end local 5 // org.jruby.runtime.builtin.IRubyObject rubyObject
        14: .line 189
      StackMap locals:
      StackMap stack:
            aload 6
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 11
        15: .line 196
      StackMap locals: org.jruby.runtime.ObjectSpace org.jruby.RubyModule java.util.ArrayList org.jruby.runtime.ObjectSpace$WeakReferenceListNode java.lang.Object
      StackMap stack:
            aload 3 /* current */
            getfield org.jruby.runtime.ObjectSpace$WeakReferenceListNode.nextNode:Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;
            astore 3 /* current */
        end local 4 // java.lang.Object obj
        16: .line 180
      StackMap locals:
      StackMap stack:
            aload 3 /* current */
            ifnonnull 3
        17: .line 199
            new org.jruby.runtime.ObjectSpace$1
            dup
            aload 0 /* this */
            aload 2 /* objList */
            invokespecial org.jruby.runtime.ObjectSpace$1.<init>:(Lorg/jruby/runtime/ObjectSpace;Ljava/util/ArrayList;)V
            areturn
        end local 3 // org.jruby.runtime.ObjectSpace$WeakReferenceListNode current
        end local 2 // java.util.ArrayList objList
        end local 1 // org.jruby.RubyModule rubyClass
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0   18     0        this  Lorg/jruby/runtime/ObjectSpace;
            0   18     1   rubyClass  Lorg/jruby/RubyModule;
            1   18     2     objList  Ljava/util/ArrayList<Ljava/lang/ref/Reference<Ljava/lang/Object;>;>;
            2   18     3     current  Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;
            4   16     4         obj  Ljava/lang/Object;
            6    8     5  rubyObject  Lorg/jruby/runtime/builtin/IRubyObject;
           12   14     5  rubyObject  Lorg/jruby/runtime/builtin/IRubyObject;
    MethodParameters:
           Name  Flags
      rubyClass  

  private void cleanup(java.lang.ref.ReferenceQueue<?>);
    descriptor: (Ljava/lang/ref/ReferenceQueue;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=3, args_size=2
        start local 0 // org.jruby.runtime.ObjectSpace this
        start local 1 // java.lang.ref.ReferenceQueue referenceQueue
         0: .line 224
            goto 2
        start local 2 // org.jruby.runtime.ObjectSpace$WeakReferenceListNode reference
         1: .line 225
      StackMap locals: org.jruby.runtime.ObjectSpace$WeakReferenceListNode
      StackMap stack:
            aload 2 /* reference */
            invokevirtual org.jruby.runtime.ObjectSpace$WeakReferenceListNode.remove:()V
        end local 2 // org.jruby.runtime.ObjectSpace$WeakReferenceListNode reference
         2: .line 224
      StackMap locals:
      StackMap stack:
            aload 1 /* referenceQueue */
            invokevirtual java.lang.ref.ReferenceQueue.poll:()Ljava/lang/ref/Reference;
            checkcast org.jruby.runtime.ObjectSpace$WeakReferenceListNode
            dup
            astore 2 /* reference */
        start local 2 // org.jruby.runtime.ObjectSpace$WeakReferenceListNode reference
         3: ifnonnull 1
         4: .line 227
            return
        end local 2 // org.jruby.runtime.ObjectSpace$WeakReferenceListNode reference
        end local 1 // java.lang.ref.ReferenceQueue referenceQueue
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    5     0            this  Lorg/jruby/runtime/ObjectSpace;
            0    5     1  referenceQueue  Ljava/lang/ref/ReferenceQueue<*>;
            1    2     2       reference  Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;
            3    5     2       reference  Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;
    Signature: (Ljava/lang/ref/ReferenceQueue<*>;)V
    MethodParameters:
                Name  Flags
      referenceQueue  

  private org.jruby.runtime.ObjectSpace$ObjectGroup getObjectGroup();
    descriptor: ()Lorg/jruby/runtime/ObjectSpace$ObjectGroup;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=3, args_size=1
        start local 0 // org.jruby.runtime.ObjectSpace this
         0: .line 264
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.currentObjectGroup:Ljava/lang/ThreadLocal;
            invokevirtual java.lang.ThreadLocal.get:()Ljava/lang/Object;
            checkcast java.lang.ref.Reference
            astore 1 /* ref */
        start local 1 // java.lang.ref.Reference ref
         1: .line 265
            aload 1 /* ref */
            ifnull 2
            aload 1 /* ref */
            invokevirtual java.lang.ref.Reference.get:()Ljava/lang/Object;
            checkcast org.jruby.runtime.ObjectSpace$ObjectGroup
            goto 3
      StackMap locals: java.lang.ref.Reference
      StackMap stack:
         2: aconst_null
      StackMap locals:
      StackMap stack: org.jruby.runtime.ObjectSpace$ObjectGroup
         3: astore 2 /* objectGroup */
        start local 2 // org.jruby.runtime.ObjectSpace$ObjectGroup objectGroup
         4: .line 266
            aload 2 /* objectGroup */
            ifnull 5
            aload 2 /* objectGroup */
            invokevirtual org.jruby.runtime.ObjectSpace$ObjectGroup.isFull:()Z
            ifne 5
            aload 2 /* objectGroup */
            goto 6
      StackMap locals: org.jruby.runtime.ObjectSpace$ObjectGroup
      StackMap stack:
         5: aload 0 /* this */
            invokevirtual org.jruby.runtime.ObjectSpace.addObjectGroup:()Lorg/jruby/runtime/ObjectSpace$ObjectGroup;
      StackMap locals:
      StackMap stack: org.jruby.runtime.ObjectSpace$ObjectGroup
         6: areturn
        end local 2 // org.jruby.runtime.ObjectSpace$ObjectGroup objectGroup
        end local 1 // java.lang.ref.Reference ref
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    7     0         this  Lorg/jruby/runtime/ObjectSpace;
            1    7     1          ref  Ljava/lang/ref/Reference<Lorg/jruby/runtime/ObjectSpace$ObjectGroup;>;
            4    7     2  objectGroup  Lorg/jruby/runtime/ObjectSpace$ObjectGroup;

  private synchronized org.jruby.runtime.ObjectSpace$ObjectGroup addObjectGroup();
    descriptor: ()Lorg/jruby/runtime/ObjectSpace$ObjectGroup;
    flags: (0x0022) ACC_PRIVATE, ACC_SYNCHRONIZED
    Code:
      stack=6, locals=3, args_size=1
        start local 0 // org.jruby.runtime.ObjectSpace this
         0: .line 271
            aload 0 /* this */
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.objectGroupReferenceQueue:Ljava/lang/ref/ReferenceQueue;
            invokevirtual org.jruby.runtime.ObjectSpace.cleanup:(Ljava/lang/ref/ReferenceQueue;)V
         1: .line 273
            new org.jruby.runtime.ObjectSpace$WeakReferenceListNode
            dup
            aload 0 /* this */
            new org.jruby.runtime.ObjectSpace$ObjectGroup
            dup
            invokespecial org.jruby.runtime.ObjectSpace$ObjectGroup.<init>:()V
            dup
            astore 1 /* objectGroup */
        start local 1 // org.jruby.runtime.ObjectSpace$ObjectGroup objectGroup
         2: .line 274
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.objectGroupReferenceQueue:Ljava/lang/ref/ReferenceQueue;
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.top:Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;
         3: .line 273
            invokespecial org.jruby.runtime.ObjectSpace$WeakReferenceListNode.<init>:(Lorg/jruby/runtime/ObjectSpace;Ljava/lang/Object;Ljava/lang/ref/ReferenceQueue;Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;)V
            astore 2 /* ref */
        start local 2 // org.jruby.runtime.ObjectSpace$WeakReferenceListNode ref
         4: .line 275
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.currentObjectGroup:Ljava/lang/ThreadLocal;
            aload 2 /* ref */
            invokevirtual java.lang.ThreadLocal.set:(Ljava/lang/Object;)V
         5: .line 276
            aload 0 /* this */
            aload 2 /* ref */
            putfield org.jruby.runtime.ObjectSpace.top:Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode;
         6: .line 277
            aload 0 /* this */
            getfield org.jruby.runtime.ObjectSpace.groupSweeperReference:Ljava/lang/ref/Reference;
            ifnonnull 7
            aload 0 /* this */
            invokevirtual org.jruby.runtime.ObjectSpace.registerGroupSweeper:()V
         7: .line 279
      StackMap locals: org.jruby.runtime.ObjectSpace$ObjectGroup org.jruby.runtime.ObjectSpace$WeakReferenceListNode
      StackMap stack:
            aload 1 /* objectGroup */
            areturn
        end local 2 // org.jruby.runtime.ObjectSpace$WeakReferenceListNode ref
        end local 1 // org.jruby.runtime.ObjectSpace$ObjectGroup objectGroup
        end local 0 // org.jruby.runtime.ObjectSpace this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    8     0         this  Lorg/jruby/runtime/ObjectSpace;
            2    8     1  objectGroup  Lorg/jruby/runtime/ObjectSpace$ObjectGroup;
            4    8     2          ref  Lorg/jruby/runtime/ObjectSpace$WeakReferenceListNode<Lorg/jruby/runtime/ObjectSpace$ObjectGroup;>;
}
SourceFile: "ObjectSpace.java"
NestMembers:
  org.jruby.runtime.ObjectSpace$1  org.jruby.runtime.ObjectSpace$GroupSweeper  org.jruby.runtime.ObjectSpace$IdReference  org.jruby.runtime.ObjectSpace$ObjectGroup  org.jruby.runtime.ObjectSpace$WeakReferenceListNode
InnerClasses:
  org.jruby.runtime.ObjectSpace$1
  private final GroupSweeper = org.jruby.runtime.ObjectSpace$GroupSweeper of org.jruby.runtime.ObjectSpace
  private IdReference = org.jruby.runtime.ObjectSpace$IdReference of org.jruby.runtime.ObjectSpace
  private final ObjectGroup = org.jruby.runtime.ObjectSpace$ObjectGroup of org.jruby.runtime.ObjectSpace
  private WeakReferenceListNode = org.jruby.runtime.ObjectSpace$WeakReferenceListNode of org.jruby.runtime.ObjectSpace