https://www.graalvm.org/ 
class org.graalvm.compiler.nodes.extended.BoxNode$PureBoxNode extends org.graalvm.compiler.nodes.extended.BoxNode
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.graalvm.compiler.nodes.extended.BoxNode$PureBoxNode
  super_class: org.graalvm.compiler.nodes.extended.BoxNode
{
  public static final org.graalvm.compiler.graph.NodeClass<org.graalvm.compiler.nodes.extended.BoxNode$PureBoxNode> TYPE;
    descriptor: Lorg/graalvm/compiler/graph/NodeClass;
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    Signature: Lorg/graalvm/compiler/graph/NodeClass<Lorg/graalvm/compiler/nodes/extended/BoxNode$PureBoxNode;>;

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 107
            ldc Lorg/graalvm/compiler/nodes/extended/BoxNode$PureBoxNode;
            invokestatic org.graalvm.compiler.graph.NodeClass.create:(Ljava/lang/Class;)Lorg/graalvm/compiler/graph/NodeClass;
            putstatic org.graalvm.compiler.nodes.extended.BoxNode$PureBoxNode.TYPE:Lorg/graalvm/compiler/graph/NodeClass;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  protected void <init>(org.graalvm.compiler.nodes.ValueNode, jdk.vm.ci.meta.ResolvedJavaType, jdk.vm.ci.meta.JavaKind);
    descriptor: (Lorg/graalvm/compiler/nodes/ValueNode;Ljdk/vm/ci/meta/ResolvedJavaType;Ljdk/vm/ci/meta/JavaKind;)V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=5, locals=4, args_size=4
        start local 0 // org.graalvm.compiler.nodes.extended.BoxNode$PureBoxNode this
        start local 1 // org.graalvm.compiler.nodes.ValueNode value
        start local 2 // jdk.vm.ci.meta.ResolvedJavaType resultType
        start local 3 // jdk.vm.ci.meta.JavaKind boxingKind
         0: .line 110
            aload 0 /* this */
            getstatic org.graalvm.compiler.nodes.extended.BoxNode$PureBoxNode.TYPE:Lorg/graalvm/compiler/graph/NodeClass;
            aload 1 /* value */
            aload 2 /* resultType */
            aload 3 /* boxingKind */
            invokespecial org.graalvm.compiler.nodes.extended.BoxNode.<init>:(Lorg/graalvm/compiler/graph/NodeClass;Lorg/graalvm/compiler/nodes/ValueNode;Ljdk/vm/ci/meta/ResolvedJavaType;Ljdk/vm/ci/meta/JavaKind;)V
         1: .line 111
            return
        end local 3 // jdk.vm.ci.meta.JavaKind boxingKind
        end local 2 // jdk.vm.ci.meta.ResolvedJavaType resultType
        end local 1 // org.graalvm.compiler.nodes.ValueNode value
        end local 0 // org.graalvm.compiler.nodes.extended.BoxNode$PureBoxNode this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    2     0        this  Lorg/graalvm/compiler/nodes/extended/BoxNode$PureBoxNode;
            0    2     1       value  Lorg/graalvm/compiler/nodes/ValueNode;
            0    2     2  resultType  Ljdk/vm/ci/meta/ResolvedJavaType;
            0    2     3  boxingKind  Ljdk/vm/ci/meta/JavaKind;
    MethodParameters:
            Name  Flags
      value       
      resultType  
      boxingKind  
}
SourceFile: "BoxNode.java"
NestHost: org.graalvm.compiler.nodes.extended.BoxNode
InnerClasses:
  private PureBoxNode = org.graalvm.compiler.nodes.extended.BoxNode$PureBoxNode of org.graalvm.compiler.nodes.extended.BoxNode
    RuntimeVisibleAnnotations: 
      org.graalvm.compiler.nodeinfo.NodeInfo(cycles = org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_8:Lorg/graalvm/compiler/nodeinfo/NodeCycles;, size = org.graalvm.compiler.nodeinfo.NodeSize.SIZE_8:Lorg/graalvm/compiler/nodeinfo/NodeSize;, allowedUsageTypes = {org.graalvm.compiler.nodeinfo.InputType.Memory:Lorg/graalvm/compiler/nodeinfo/InputType;, org.graalvm.compiler.nodeinfo.InputType.Value:Lorg/graalvm/compiler/nodeinfo/InputType;})