https://openjdk.java.net/ 
final class org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure extends org.graalvm.compiler.nodes.VirtualState$NodeClosure<org.graalvm.compiler.nodes.ValueNode>
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure
  super_class: org.graalvm.compiler.nodes.VirtualState$NodeClosure
{
  private final jdk.internal.vm.compiler.collections.EconomicSet<org.graalvm.compiler.nodes.virtual.VirtualObjectNode> virtual;
    descriptor: Ljdk/internal/vm/compiler/collections/EconomicSet;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljdk/internal/vm/compiler/collections/EconomicSet<Lorg/graalvm/compiler/nodes/virtual/VirtualObjectNode;>;

  private final org.graalvm.compiler.virtual.phases.ea.GraphEffectList effects;
    descriptor: Lorg/graalvm/compiler/virtual/phases/ea/GraphEffectList;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final BlockT state;
    descriptor: Lorg/graalvm/compiler/virtual/phases/ea/PartialEscapeBlockState;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: TBlockT;

  final org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure this$0;
    descriptor: Lorg/graalvm/compiler/virtual/phases/ea/PartialEscapeClosure;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  private void <init>(jdk.internal.vm.compiler.collections.EconomicSet<org.graalvm.compiler.nodes.virtual.VirtualObjectNode>, org.graalvm.compiler.virtual.phases.ea.GraphEffectList, );
    descriptor: (Lorg/graalvm/compiler/virtual/phases/ea/PartialEscapeClosure;Ljdk/internal/vm/compiler/collections/EconomicSet;Lorg/graalvm/compiler/virtual/phases/ea/GraphEffectList;Lorg/graalvm/compiler/virtual/phases/ea/PartialEscapeBlockState;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=5, args_size=5
        start local 0 // org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure this
        start local 2 // jdk.internal.vm.compiler.collections.EconomicSet virtual
        start local 3 // org.graalvm.compiler.virtual.phases.ea.GraphEffectList effects
        start local 4 // org.graalvm.compiler.virtual.phases.ea.PartialEscapeBlockState state
         0: .line 141
            aload 0 /* this */
            aload 1
            putfield org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure.this$0:Lorg/graalvm/compiler/virtual/phases/ea/PartialEscapeClosure;
            aload 0 /* this */
            invokespecial org.graalvm.compiler.nodes.VirtualState$NodeClosure.<init>:()V
         1: .line 142
            aload 0 /* this */
            aload 2 /* virtual */
            putfield org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure.virtual:Ljdk/internal/vm/compiler/collections/EconomicSet;
         2: .line 143
            aload 0 /* this */
            aload 3 /* effects */
            putfield org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure.effects:Lorg/graalvm/compiler/virtual/phases/ea/GraphEffectList;
         3: .line 144
            aload 0 /* this */
            aload 4 /* state */
            putfield org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure.state:Lorg/graalvm/compiler/virtual/phases/ea/PartialEscapeBlockState;
         4: .line 145
            return
        end local 4 // org.graalvm.compiler.virtual.phases.ea.PartialEscapeBlockState state
        end local 3 // org.graalvm.compiler.virtual.phases.ea.GraphEffectList effects
        end local 2 // jdk.internal.vm.compiler.collections.EconomicSet virtual
        end local 0 // org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    5     0     this  Lorg/graalvm/compiler/virtual/phases/ea/PartialEscapeClosure$CollectVirtualObjectsClosure;
            0    5     2  virtual  Ljdk/internal/vm/compiler/collections/EconomicSet<Lorg/graalvm/compiler/nodes/virtual/VirtualObjectNode;>;
            0    5     3  effects  Lorg/graalvm/compiler/virtual/phases/ea/GraphEffectList;
            0    5     4    state  TBlockT;
    Signature: (Ljdk/internal/vm/compiler/collections/EconomicSet<Lorg/graalvm/compiler/nodes/virtual/VirtualObjectNode;>;Lorg/graalvm/compiler/virtual/phases/ea/GraphEffectList;TBlockT;)V
    MethodParameters:
         Name  Flags
      this$0   final
      virtual  
      effects  
      state    

  public void apply(org.graalvm.compiler.graph.Node, org.graalvm.compiler.nodes.ValueNode);
    descriptor: (Lorg/graalvm/compiler/graph/Node;Lorg/graalvm/compiler/nodes/ValueNode;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=5, args_size=3
        start local 0 // org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure this
        start local 1 // org.graalvm.compiler.graph.Node usage
        start local 2 // org.graalvm.compiler.nodes.ValueNode value
         0: .line 149
            aload 2 /* value */
            instanceof org.graalvm.compiler.nodes.virtual.VirtualObjectNode
            ifeq 5
         1: .line 150
            aload 2 /* value */
            checkcast org.graalvm.compiler.nodes.virtual.VirtualObjectNode
            astore 3 /* object */
        start local 3 // org.graalvm.compiler.nodes.virtual.VirtualObjectNode object
         2: .line 151
            aload 3 /* object */
            invokevirtual org.graalvm.compiler.nodes.virtual.VirtualObjectNode.getObjectId:()I
            iconst_m1
            if_icmpeq 10
            aload 0 /* this */
            getfield org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure.state:Lorg/graalvm/compiler/virtual/phases/ea/PartialEscapeBlockState;
            aload 3 /* object */
            invokevirtual org.graalvm.compiler.virtual.phases.ea.PartialEscapeBlockState.getObjectStateOptional:(Lorg/graalvm/compiler/nodes/virtual/VirtualObjectNode;)Lorg/graalvm/compiler/virtual/phases/ea/ObjectState;
            ifnull 10
         3: .line 152
            aload 0 /* this */
            getfield org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure.virtual:Ljdk/internal/vm/compiler/collections/EconomicSet;
            aload 3 /* object */
            invokeinterface jdk.internal.vm.compiler.collections.EconomicSet.add:(Ljava/lang/Object;)Z
            pop
        end local 3 // org.graalvm.compiler.nodes.virtual.VirtualObjectNode object
         4: .line 154
            goto 10
         5: .line 155
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure.this$0:Lorg/graalvm/compiler/virtual/phases/ea/PartialEscapeClosure;
            aload 2 /* value */
            invokevirtual org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure.getAlias:(Lorg/graalvm/compiler/nodes/ValueNode;)Lorg/graalvm/compiler/nodes/ValueNode;
            astore 3 /* alias */
        start local 3 // org.graalvm.compiler.nodes.ValueNode alias
         6: .line 156
            aload 3 /* alias */
            instanceof org.graalvm.compiler.nodes.virtual.VirtualObjectNode
            ifeq 10
         7: .line 157
            aload 3 /* alias */
            checkcast org.graalvm.compiler.nodes.virtual.VirtualObjectNode
            astore 4 /* object */
        start local 4 // org.graalvm.compiler.nodes.virtual.VirtualObjectNode object
         8: .line 158
            aload 0 /* this */
            getfield org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure.virtual:Ljdk/internal/vm/compiler/collections/EconomicSet;
            aload 4 /* object */
            invokeinterface jdk.internal.vm.compiler.collections.EconomicSet.add:(Ljava/lang/Object;)Z
            pop
         9: .line 159
            aload 0 /* this */
            getfield org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure.effects:Lorg/graalvm/compiler/virtual/phases/ea/GraphEffectList;
            aload 1 /* usage */
            aload 2 /* value */
            aload 4 /* object */
            invokevirtual org.graalvm.compiler.virtual.phases.ea.GraphEffectList.replaceFirstInput:(Lorg/graalvm/compiler/graph/Node;Lorg/graalvm/compiler/graph/Node;Lorg/graalvm/compiler/graph/Node;)V
        end local 4 // org.graalvm.compiler.nodes.virtual.VirtualObjectNode object
        end local 3 // org.graalvm.compiler.nodes.ValueNode alias
        10: .line 162
      StackMap locals:
      StackMap stack:
            return
        end local 2 // org.graalvm.compiler.nodes.ValueNode value
        end local 1 // org.graalvm.compiler.graph.Node usage
        end local 0 // org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   11     0    this  Lorg/graalvm/compiler/virtual/phases/ea/PartialEscapeClosure$CollectVirtualObjectsClosure;
            0   11     1   usage  Lorg/graalvm/compiler/graph/Node;
            0   11     2   value  Lorg/graalvm/compiler/nodes/ValueNode;
            2    4     3  object  Lorg/graalvm/compiler/nodes/virtual/VirtualObjectNode;
            6   10     3   alias  Lorg/graalvm/compiler/nodes/ValueNode;
            8   10     4  object  Lorg/graalvm/compiler/nodes/virtual/VirtualObjectNode;
    MethodParameters:
       Name  Flags
      usage  
      value  

  public void apply(org.graalvm.compiler.graph.Node, org.graalvm.compiler.graph.Node);
    descriptor: (Lorg/graalvm/compiler/graph/Node;Lorg/graalvm/compiler/graph/Node;)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
            checkcast org.graalvm.compiler.nodes.ValueNode
            invokevirtual org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure.apply:(Lorg/graalvm/compiler/graph/Node;Lorg/graalvm/compiler/nodes/ValueNode;)V
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
Signature: Lorg/graalvm/compiler/nodes/VirtualState$NodeClosure<Lorg/graalvm/compiler/nodes/ValueNode;>;
SourceFile: "PartialEscapeClosure.java"
NestHost: org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure
InnerClasses:
  public abstract NodeClosure = org.graalvm.compiler.nodes.VirtualState$NodeClosure of org.graalvm.compiler.nodes.VirtualState
  private final CollectVirtualObjectsClosure = org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure$CollectVirtualObjectsClosure of org.graalvm.compiler.virtual.phases.ea.PartialEscapeClosure