https://www.graalvm.org/ 
public class org.graalvm.compiler.core.test.GraalCompilerTest$NotOptimizedNode extends org.graalvm.compiler.nodes.FixedWithNextNode
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.graalvm.compiler.core.test.GraalCompilerTest$NotOptimizedNode
  super_class: org.graalvm.compiler.nodes.FixedWithNextNode
{
  private static final org.graalvm.compiler.graph.NodeClass<org.graalvm.compiler.core.test.GraalCompilerTest$NotOptimizedNode> TYPE;
    descriptor: Lorg/graalvm/compiler/graph/NodeClass;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    Signature: Lorg/graalvm/compiler/graph/NodeClass<Lorg/graalvm/compiler/core/test/GraalCompilerTest$NotOptimizedNode;>;

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 1484
            ldc Lorg/graalvm/compiler/core/test/GraalCompilerTest$NotOptimizedNode;
            invokestatic org.graalvm.compiler.graph.NodeClass.create:(Ljava/lang/Class;)Lorg/graalvm/compiler/graph/NodeClass;
            putstatic org.graalvm.compiler.core.test.GraalCompilerTest$NotOptimizedNode.TYPE:Lorg/graalvm/compiler/graph/NodeClass;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  protected void <init>();
    descriptor: ()V
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.graalvm.compiler.core.test.GraalCompilerTest$NotOptimizedNode this
         0: .line 1487
            aload 0 /* this */
            getstatic org.graalvm.compiler.core.test.GraalCompilerTest$NotOptimizedNode.TYPE:Lorg/graalvm/compiler/graph/NodeClass;
            invokestatic org.graalvm.compiler.core.common.type.StampFactory.forVoid:()Lorg/graalvm/compiler/core/common/type/Stamp;
            invokespecial org.graalvm.compiler.nodes.FixedWithNextNode.<init>:(Lorg/graalvm/compiler/graph/NodeClass;Lorg/graalvm/compiler/core/common/type/Stamp;)V
         1: .line 1488
            return
        end local 0 // org.graalvm.compiler.core.test.GraalCompilerTest$NotOptimizedNode this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/graalvm/compiler/core/test/GraalCompilerTest$NotOptimizedNode;
}
SourceFile: "GraalCompilerTest.java"
NestHost: org.graalvm.compiler.core.test.GraalCompilerTest
InnerClasses:
  public NotOptimizedNode = org.graalvm.compiler.core.test.GraalCompilerTest$NotOptimizedNode of org.graalvm.compiler.core.test.GraalCompilerTest
    RuntimeVisibleAnnotations: 
      org.graalvm.compiler.nodeinfo.NodeInfo()