https://www.graalvm.org/ 
public final class com.oracle.truffle.object.ShapeBasic extends com.oracle.truffle.object.ShapeImpl
  minor version: 0
  major version: 59
  flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
  this_class: com.oracle.truffle.object.ShapeBasic
  super_class: com.oracle.truffle.object.ShapeImpl
{
  void <init>(com.oracle.truffle.api.object.Layout, java.lang.Object, java.lang.Object, int, com.oracle.truffle.api.Assumption);
    descriptor: (Lcom/oracle/truffle/api/object/Layout;Ljava/lang/Object;Ljava/lang/Object;ILcom/oracle/truffle/api/Assumption;)V
    flags: (0x0000) 
    Code:
      stack=6, locals=6, args_size=6
        start local 0 // com.oracle.truffle.object.ShapeBasic this
        start local 1 // com.oracle.truffle.api.object.Layout layout
        start local 2 // java.lang.Object sharedData
        start local 3 // java.lang.Object objectType
        start local 4 // int flags
        start local 5 // com.oracle.truffle.api.Assumption singleContextAssumption
         0: .line 48
            aload 0 /* this */
            aload 1 /* layout */
            aload 3 /* objectType */
            aload 2 /* sharedData */
            iload 4 /* flags */
            aload 5 /* singleContextAssumption */
            invokespecial com.oracle.truffle.object.ShapeImpl.<init>:(Lcom/oracle/truffle/api/object/Layout;Ljava/lang/Object;Ljava/lang/Object;ILcom/oracle/truffle/api/Assumption;)V
         1: .line 49
            return
        end local 5 // com.oracle.truffle.api.Assumption singleContextAssumption
        end local 4 // int flags
        end local 3 // java.lang.Object objectType
        end local 2 // java.lang.Object sharedData
        end local 1 // com.oracle.truffle.api.object.Layout layout
        end local 0 // com.oracle.truffle.object.ShapeBasic this
      LocalVariableTable:
        Start  End  Slot                     Name  Signature
            0    2     0                     this  Lcom/oracle/truffle/object/ShapeBasic;
            0    2     1                   layout  Lcom/oracle/truffle/api/object/Layout;
            0    2     2               sharedData  Ljava/lang/Object;
            0    2     3               objectType  Ljava/lang/Object;
            0    2     4                    flags  I
            0    2     5  singleContextAssumption  Lcom/oracle/truffle/api/Assumption;
    MethodParameters:
                         Name  Flags
      layout                   
      sharedData               
      objectType               
      flags                    
      singleContextAssumption  

  void <init>(com.oracle.truffle.api.object.Layout, java.lang.Object, com.oracle.truffle.object.ShapeImpl, java.lang.Object, com.oracle.truffle.object.PropertyMap, com.oracle.truffle.object.Transition, com.oracle.truffle.api.object.Shape$Allocator, int);
    descriptor: (Lcom/oracle/truffle/api/object/Layout;Ljava/lang/Object;Lcom/oracle/truffle/object/ShapeImpl;Ljava/lang/Object;Lcom/oracle/truffle/object/PropertyMap;Lcom/oracle/truffle/object/Transition;Lcom/oracle/truffle/api/object/Shape$Allocator;I)V
    flags: (0x0000) 
    Code:
      stack=9, locals=9, args_size=9
        start local 0 // com.oracle.truffle.object.ShapeBasic this
        start local 1 // com.oracle.truffle.api.object.Layout layout
        start local 2 // java.lang.Object sharedData
        start local 3 // com.oracle.truffle.object.ShapeImpl parent
        start local 4 // java.lang.Object objectType
        start local 5 // com.oracle.truffle.object.PropertyMap propertyMap
        start local 6 // com.oracle.truffle.object.Transition transition
        start local 7 // com.oracle.truffle.api.object.Shape$Allocator allocator
        start local 8 // int flags
         0: .line 52
            aload 0 /* this */
            aload 1 /* layout */
            aload 3 /* parent */
            aload 4 /* objectType */
            aload 2 /* sharedData */
            aload 5 /* propertyMap */
            aload 6 /* transition */
            aload 7 /* allocator */
            iload 8 /* flags */
            invokespecial com.oracle.truffle.object.ShapeImpl.<init>:(Lcom/oracle/truffle/api/object/Layout;Lcom/oracle/truffle/object/ShapeImpl;Ljava/lang/Object;Ljava/lang/Object;Lcom/oracle/truffle/object/PropertyMap;Lcom/oracle/truffle/object/Transition;Lcom/oracle/truffle/api/object/Shape$Allocator;I)V
         1: .line 53
            return
        end local 8 // int flags
        end local 7 // com.oracle.truffle.api.object.Shape$Allocator allocator
        end local 6 // com.oracle.truffle.object.Transition transition
        end local 5 // com.oracle.truffle.object.PropertyMap propertyMap
        end local 4 // java.lang.Object objectType
        end local 3 // com.oracle.truffle.object.ShapeImpl parent
        end local 2 // java.lang.Object sharedData
        end local 1 // com.oracle.truffle.api.object.Layout layout
        end local 0 // com.oracle.truffle.object.ShapeBasic this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    2     0         this  Lcom/oracle/truffle/object/ShapeBasic;
            0    2     1       layout  Lcom/oracle/truffle/api/object/Layout;
            0    2     2   sharedData  Ljava/lang/Object;
            0    2     3       parent  Lcom/oracle/truffle/object/ShapeImpl;
            0    2     4   objectType  Ljava/lang/Object;
            0    2     5  propertyMap  Lcom/oracle/truffle/object/PropertyMap;
            0    2     6   transition  Lcom/oracle/truffle/object/Transition;
            0    2     7    allocator  Lcom/oracle/truffle/api/object/Shape$Allocator;
            0    2     8        flags  I
    MethodParameters:
             Name  Flags
      layout       
      sharedData   
      parent       
      objectType   
      propertyMap  
      transition   
      allocator    
      flags        

  protected com.oracle.truffle.object.ShapeImpl createShape(com.oracle.truffle.api.object.Layout, java.lang.Object, com.oracle.truffle.object.ShapeImpl, java.lang.Object, com.oracle.truffle.object.PropertyMap, com.oracle.truffle.object.Transition, com.oracle.truffle.api.object.Shape$Allocator, int);
    descriptor: (Lcom/oracle/truffle/api/object/Layout;Ljava/lang/Object;Lcom/oracle/truffle/object/ShapeImpl;Ljava/lang/Object;Lcom/oracle/truffle/object/PropertyMap;Lcom/oracle/truffle/object/Transition;Lcom/oracle/truffle/api/object/Shape$Allocator;I)Lcom/oracle/truffle/object/ShapeImpl;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=10, locals=9, args_size=9
        start local 0 // com.oracle.truffle.object.ShapeBasic this
        start local 1 // com.oracle.truffle.api.object.Layout layout
        start local 2 // java.lang.Object sharedData
        start local 3 // com.oracle.truffle.object.ShapeImpl parent
        start local 4 // java.lang.Object objectType
        start local 5 // com.oracle.truffle.object.PropertyMap propertyMap
        start local 6 // com.oracle.truffle.object.Transition transition
        start local 7 // com.oracle.truffle.api.object.Shape$Allocator allocator
        start local 8 // int flags
         0: .line 58
            new com.oracle.truffle.object.ShapeBasic
            dup
            aload 1 /* layout */
            aload 2 /* sharedData */
            aload 3 /* parent */
            aload 4 /* objectType */
            aload 5 /* propertyMap */
            aload 6 /* transition */
            aload 7 /* allocator */
            iload 8 /* flags */
            invokespecial com.oracle.truffle.object.ShapeBasic.<init>:(Lcom/oracle/truffle/api/object/Layout;Ljava/lang/Object;Lcom/oracle/truffle/object/ShapeImpl;Ljava/lang/Object;Lcom/oracle/truffle/object/PropertyMap;Lcom/oracle/truffle/object/Transition;Lcom/oracle/truffle/api/object/Shape$Allocator;I)V
            areturn
        end local 8 // int flags
        end local 7 // com.oracle.truffle.api.object.Shape$Allocator allocator
        end local 6 // com.oracle.truffle.object.Transition transition
        end local 5 // com.oracle.truffle.object.PropertyMap propertyMap
        end local 4 // java.lang.Object objectType
        end local 3 // com.oracle.truffle.object.ShapeImpl parent
        end local 2 // java.lang.Object sharedData
        end local 1 // com.oracle.truffle.api.object.Layout layout
        end local 0 // com.oracle.truffle.object.ShapeBasic this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    1     0         this  Lcom/oracle/truffle/object/ShapeBasic;
            0    1     1       layout  Lcom/oracle/truffle/api/object/Layout;
            0    1     2   sharedData  Ljava/lang/Object;
            0    1     3       parent  Lcom/oracle/truffle/object/ShapeImpl;
            0    1     4   objectType  Ljava/lang/Object;
            0    1     5  propertyMap  Lcom/oracle/truffle/object/PropertyMap;
            0    1     6   transition  Lcom/oracle/truffle/object/Transition;
            0    1     7    allocator  Lcom/oracle/truffle/api/object/Shape$Allocator;
            0    1     8        flags  I
    MethodParameters:
             Name  Flags
      layout       
      sharedData   
      parent       
      objectType   
      propertyMap  
      transition   
      allocator    
      flags        
}
SourceFile: "ShapeBasic.java"
InnerClasses:
  public abstract Allocator = com.oracle.truffle.api.object.Shape$Allocator of com.oracle.truffle.api.object.Shape