http://hibernate.org: The core O/RM functionality as provided by Hibernate (Hibernate.org) 
public class org.hibernate.bytecode.internal.javassist.JavassistClassTransformer extends org.hibernate.bytecode.spi.AbstractClassTransformerImpl
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.hibernate.bytecode.internal.javassist.JavassistClassTransformer
  super_class: org.hibernate.bytecode.spi.AbstractClassTransformerImpl
{
  private static final org.hibernate.internal.CoreMessageLogger LOG;
    descriptor: Lorg/hibernate/internal/CoreMessageLogger;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 54
            ldc Lorg/hibernate/internal/CoreMessageLogger;
         1: .line 55
            ldc Lorg/hibernate/bytecode/internal/javassist/JavassistClassTransformer;
            invokevirtual java.lang.Class.getName:()Ljava/lang/String;
         2: .line 53
            invokestatic org.jboss.logging.Logger.getMessageLogger:(Ljava/lang/Class;Ljava/lang/String;)Ljava/lang/Object;
            checkcast org.hibernate.internal.CoreMessageLogger
            putstatic org.hibernate.bytecode.internal.javassist.JavassistClassTransformer.LOG:Lorg/hibernate/internal/CoreMessageLogger;
         3: .line 56
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>(org.hibernate.bytecode.buildtime.spi.ClassFilter, org.hibernate.bytecode.buildtime.spi.FieldFilter);
    descriptor: (Lorg/hibernate/bytecode/buildtime/spi/ClassFilter;Lorg/hibernate/bytecode/buildtime/spi/FieldFilter;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // org.hibernate.bytecode.internal.javassist.JavassistClassTransformer this
        start local 1 // org.hibernate.bytecode.buildtime.spi.ClassFilter classFilter
        start local 2 // org.hibernate.bytecode.buildtime.spi.FieldFilter fieldFilter
         0: .line 65
            aload 0 /* this */
            aload 1 /* classFilter */
            aload 2 /* fieldFilter */
            invokespecial org.hibernate.bytecode.spi.AbstractClassTransformerImpl.<init>:(Lorg/hibernate/bytecode/buildtime/spi/ClassFilter;Lorg/hibernate/bytecode/buildtime/spi/FieldFilter;)V
         1: .line 66
            return
        end local 2 // org.hibernate.bytecode.buildtime.spi.FieldFilter fieldFilter
        end local 1 // org.hibernate.bytecode.buildtime.spi.ClassFilter classFilter
        end local 0 // org.hibernate.bytecode.internal.javassist.JavassistClassTransformer this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    2     0         this  Lorg/hibernate/bytecode/internal/javassist/JavassistClassTransformer;
            0    2     1  classFilter  Lorg/hibernate/bytecode/buildtime/spi/ClassFilter;
            0    2     2  fieldFilter  Lorg/hibernate/bytecode/buildtime/spi/FieldFilter;
    MethodParameters:
             Name  Flags
      classFilter  
      fieldFilter  

  protected byte[] doTransform(java.lang.ClassLoader, java.lang.String, java.lang.Class, java.security.ProtectionDomain, byte[]);
    descriptor: (Ljava/lang/ClassLoader;Ljava/lang/String;Ljava/lang/Class;Ljava/security/ProtectionDomain;[B)[B
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=7, locals=13, args_size=6
        start local 0 // org.hibernate.bytecode.internal.javassist.JavassistClassTransformer this
        start local 1 // java.lang.ClassLoader loader
        start local 2 // java.lang.String className
        start local 3 // java.lang.Class classBeingRedefined
        start local 4 // java.security.ProtectionDomain protectionDomain
        start local 5 // byte[] classfileBuffer
         0: .line 78
            new javassist.bytecode.ClassFile
            dup
            new java.io.DataInputStream
            dup
            new java.io.ByteArrayInputStream
            dup
            aload 5 /* classfileBuffer */
            invokespecial java.io.ByteArrayInputStream.<init>:([B)V
            invokespecial java.io.DataInputStream.<init>:(Ljava/io/InputStream;)V
            invokespecial javassist.bytecode.ClassFile.<init>:(Ljava/io/DataInputStream;)V
            astore 6 /* classfile */
        start local 6 // javassist.bytecode.ClassFile classfile
         1: .line 79
            goto 5
        end local 6 // javassist.bytecode.ClassFile classfile
         2: .line 80
      StackMap locals:
      StackMap stack: java.io.IOException
            pop
         3: .line 81
            getstatic org.hibernate.bytecode.internal.javassist.JavassistClassTransformer.LOG:Lorg/hibernate/internal/CoreMessageLogger;
            aload 2 /* className */
            invokeinterface org.hibernate.internal.CoreMessageLogger.unableToBuildEnhancementMetamodel:(Ljava/lang/String;)V
         4: .line 82
            aload 5 /* classfileBuffer */
            areturn
        start local 6 // javassist.bytecode.ClassFile classfile
         5: .line 85
      StackMap locals: javassist.bytecode.ClassFile
      StackMap stack:
            new javassist.ClassPool
            dup
            invokespecial javassist.ClassPool.<init>:()V
            astore 7 /* cp */
        start local 7 // javassist.ClassPool cp
         6: .line 86
            aload 7 /* cp */
            invokevirtual javassist.ClassPool.appendSystemPath:()Ljavassist/ClassPath;
            pop
         7: .line 87
            aload 7 /* cp */
            new javassist.ClassClassPath
            dup
            aload 0 /* this */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            invokespecial javassist.ClassClassPath.<init>:(Ljava/lang/Class;)V
            invokevirtual javassist.ClassPool.appendClassPath:(Ljavassist/ClassPath;)Ljavassist/ClassPath;
            pop
         8: .line 88
            aload 7 /* cp */
            new javassist.ClassClassPath
            dup
            aload 6 /* classfile */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            invokespecial javassist.ClassClassPath.<init>:(Ljava/lang/Class;)V
            invokevirtual javassist.ClassPool.appendClassPath:(Ljavassist/ClassPath;)Ljavassist/ClassPath;
            pop
         9: .line 91
            aload 7 /* cp */
            new java.io.ByteArrayInputStream
            dup
            aload 5 /* classfileBuffer */
            invokespecial java.io.ByteArrayInputStream.<init>:([B)V
            invokevirtual javassist.ClassPool.makeClassIfNew:(Ljava/io/InputStream;)Ljavassist/CtClass;
            pop
        10: .line 92
            goto 13
        11: .line 93
      StackMap locals: org.hibernate.bytecode.internal.javassist.JavassistClassTransformer java.lang.ClassLoader java.lang.String java.lang.Class java.security.ProtectionDomain byte[] javassist.bytecode.ClassFile javassist.ClassPool
      StackMap stack: java.io.IOException
            astore 8 /* e */
        start local 8 // java.io.IOException e
        12: .line 94
            new java.lang.RuntimeException
            dup
            aload 8 /* e */
            invokevirtual java.io.IOException.getMessage:()Ljava/lang/String;
            aload 8 /* e */
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/String;Ljava/lang/Throwable;)V
            athrow
        end local 8 // java.io.IOException e
        13: .line 97
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 6 /* classfile */
            aload 7 /* cp */
            invokevirtual org.hibernate.bytecode.internal.javassist.JavassistClassTransformer.getFieldTransformer:(Ljavassist/bytecode/ClassFile;Ljavassist/ClassPool;)Lorg/hibernate/bytecode/internal/javassist/FieldTransformer;
            astore 8 /* transformer */
        start local 8 // org.hibernate.bytecode.internal.javassist.FieldTransformer transformer
        14: .line 98
            aload 8 /* transformer */
            ifnull 36
        15: .line 99
            getstatic org.hibernate.bytecode.internal.javassist.JavassistClassTransformer.LOG:Lorg/hibernate/internal/CoreMessageLogger;
            ldc "Enhancing %s"
            aload 2 /* className */
            invokeinterface org.hibernate.internal.CoreMessageLogger.debugf:(Ljava/lang/String;Ljava/lang/Object;)V
        16: .line 101
            aconst_null
            astore 9 /* out */
        start local 9 // java.io.DataOutputStream out
        17: .line 103
            aload 8 /* transformer */
            aload 6 /* classfile */
            invokevirtual org.hibernate.bytecode.internal.javassist.FieldTransformer.transform:(Ljavassist/bytecode/ClassFile;)V
        18: .line 104
            new java.io.ByteArrayOutputStream
            dup
            invokespecial java.io.ByteArrayOutputStream.<init>:()V
            astore 10 /* byteStream */
        start local 10 // java.io.ByteArrayOutputStream byteStream
        19: .line 105
            new java.io.DataOutputStream
            dup
            aload 10 /* byteStream */
            invokespecial java.io.DataOutputStream.<init>:(Ljava/io/OutputStream;)V
            astore 9 /* out */
        20: .line 106
            aload 6 /* classfile */
            aload 9 /* out */
            invokevirtual javassist.bytecode.ClassFile.write:(Ljava/io/DataOutputStream;)V
        21: .line 107
            aload 10 /* byteStream */
            invokevirtual java.io.ByteArrayOutputStream.toByteArray:()[B
            astore 12
        22: .line 115
            aload 9 /* out */
            ifnull 26
        23: .line 116
            aload 9 /* out */
            invokevirtual java.io.DataOutputStream.close:()V
        24: .line 118
            goto 26
        25: .line 119
      StackMap locals: org.hibernate.bytecode.internal.javassist.JavassistClassTransformer java.lang.ClassLoader java.lang.String java.lang.Class java.security.ProtectionDomain byte[] javassist.bytecode.ClassFile javassist.ClassPool org.hibernate.bytecode.internal.javassist.FieldTransformer java.io.DataOutputStream java.io.ByteArrayOutputStream top byte[]
      StackMap stack: java.io.IOException
            pop
        26: .line 107
      StackMap locals:
      StackMap stack:
            aload 12
            areturn
        end local 10 // java.io.ByteArrayOutputStream byteStream
        27: .line 109
      StackMap locals: org.hibernate.bytecode.internal.javassist.JavassistClassTransformer java.lang.ClassLoader java.lang.String java.lang.Class java.security.ProtectionDomain byte[] javassist.bytecode.ClassFile javassist.ClassPool org.hibernate.bytecode.internal.javassist.FieldTransformer java.io.DataOutputStream
      StackMap stack: java.lang.Exception
            astore 10 /* e */
        start local 10 // java.lang.Exception e
        28: .line 110
            getstatic org.hibernate.bytecode.internal.javassist.JavassistClassTransformer.LOG:Lorg/hibernate/internal/CoreMessageLogger;
            aload 10 /* e */
            invokevirtual java.lang.Exception.getMessage:()Ljava/lang/String;
            invokeinterface org.hibernate.internal.CoreMessageLogger.unableToTransformClass:(Ljava/lang/String;)V
        29: .line 111
            new org.hibernate.HibernateException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Unable to transform class: "
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 10 /* e */
            invokevirtual java.lang.Exception.getMessage:()Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial org.hibernate.HibernateException.<init>:(Ljava/lang/String;)V
            athrow
        end local 10 // java.lang.Exception e
        30: .line 113
      StackMap locals:
      StackMap stack: java.lang.Throwable
            astore 11
        31: .line 115
            aload 9 /* out */
            ifnull 35
        32: .line 116
            aload 9 /* out */
            invokevirtual java.io.DataOutputStream.close:()V
        33: .line 118
            goto 35
        34: .line 119
      StackMap locals: org.hibernate.bytecode.internal.javassist.JavassistClassTransformer java.lang.ClassLoader java.lang.String java.lang.Class java.security.ProtectionDomain byte[] javassist.bytecode.ClassFile javassist.ClassPool org.hibernate.bytecode.internal.javassist.FieldTransformer java.io.DataOutputStream top java.lang.Throwable
      StackMap stack: java.io.IOException
            pop
        35: .line 122
      StackMap locals:
      StackMap stack:
            aload 11
            athrow
        end local 9 // java.io.DataOutputStream out
        36: .line 124
      StackMap locals: org.hibernate.bytecode.internal.javassist.JavassistClassTransformer java.lang.ClassLoader java.lang.String java.lang.Class java.security.ProtectionDomain byte[] javassist.bytecode.ClassFile javassist.ClassPool org.hibernate.bytecode.internal.javassist.FieldTransformer
      StackMap stack:
            aload 5 /* classfileBuffer */
            areturn
        end local 8 // org.hibernate.bytecode.internal.javassist.FieldTransformer transformer
        end local 7 // javassist.ClassPool cp
        end local 6 // javassist.bytecode.ClassFile classfile
        end local 5 // byte[] classfileBuffer
        end local 4 // java.security.ProtectionDomain protectionDomain
        end local 3 // java.lang.Class classBeingRedefined
        end local 2 // java.lang.String className
        end local 1 // java.lang.ClassLoader loader
        end local 0 // org.hibernate.bytecode.internal.javassist.JavassistClassTransformer this
      LocalVariableTable:
        Start  End  Slot                 Name  Signature
            0   37     0                 this  Lorg/hibernate/bytecode/internal/javassist/JavassistClassTransformer;
            0   37     1               loader  Ljava/lang/ClassLoader;
            0   37     2            className  Ljava/lang/String;
            0   37     3  classBeingRedefined  Ljava/lang/Class;
            0   37     4     protectionDomain  Ljava/security/ProtectionDomain;
            0   37     5      classfileBuffer  [B
            1    2     6            classfile  Ljavassist/bytecode/ClassFile;
            5   37     6            classfile  Ljavassist/bytecode/ClassFile;
            6   37     7                   cp  Ljavassist/ClassPool;
           12   13     8                    e  Ljava/io/IOException;
           14   37     8          transformer  Lorg/hibernate/bytecode/internal/javassist/FieldTransformer;
           17   36     9                  out  Ljava/io/DataOutputStream;
           19   27    10           byteStream  Ljava/io/ByteArrayOutputStream;
           28   30    10                    e  Ljava/lang/Exception;
      Exception table:
        from    to  target  type
           0     1       2  Class java.io.IOException
           9    10      11  Class java.io.IOException
          22    24      25  Class java.io.IOException
          17    22      27  Class java.lang.Exception
          17    22      30  any
          27    30      30  any
          31    33      34  Class java.io.IOException
    MethodParameters:
                     Name  Flags
      loader               
      className            
      classBeingRedefined  
      protectionDomain     
      classfileBuffer      

  protected org.hibernate.bytecode.internal.javassist.FieldTransformer getFieldTransformer(javassist.bytecode.ClassFile, javassist.ClassPool);
    descriptor: (Ljavassist/bytecode/ClassFile;Ljavassist/ClassPool;)Lorg/hibernate/bytecode/internal/javassist/FieldTransformer;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=6, locals=3, args_size=3
        start local 0 // org.hibernate.bytecode.internal.javassist.JavassistClassTransformer this
        start local 1 // javassist.bytecode.ClassFile classfile
        start local 2 // javassist.ClassPool classPool
         0: .line 128
            aload 0 /* this */
            aload 1 /* classfile */
            invokevirtual org.hibernate.bytecode.internal.javassist.JavassistClassTransformer.alreadyInstrumented:(Ljavassist/bytecode/ClassFile;)Z
            ifeq 2
         1: .line 129
            aconst_null
            areturn
         2: .line 131
      StackMap locals:
      StackMap stack:
            new org.hibernate.bytecode.internal.javassist.FieldTransformer
            dup
         3: .line 132
            new org.hibernate.bytecode.internal.javassist.JavassistClassTransformer$1
            dup
            aload 0 /* this */
            aload 1 /* classfile */
            invokespecial org.hibernate.bytecode.internal.javassist.JavassistClassTransformer$1.<init>:(Lorg/hibernate/bytecode/internal/javassist/JavassistClassTransformer;Ljavassist/bytecode/ClassFile;)V
         4: .line 149
            aload 2 /* classPool */
         5: .line 131
            invokespecial org.hibernate.bytecode.internal.javassist.FieldTransformer.<init>:(Lorg/hibernate/bytecode/internal/javassist/FieldFilter;Ljavassist/ClassPool;)V
            areturn
        end local 2 // javassist.ClassPool classPool
        end local 1 // javassist.bytecode.ClassFile classfile
        end local 0 // org.hibernate.bytecode.internal.javassist.JavassistClassTransformer this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    6     0       this  Lorg/hibernate/bytecode/internal/javassist/JavassistClassTransformer;
            0    6     1  classfile  Ljavassist/bytecode/ClassFile;
            0    6     2  classPool  Ljavassist/ClassPool;
    MethodParameters:
           Name  Flags
      classfile  final
      classPool  final

  private boolean alreadyInstrumented(javassist.bytecode.ClassFile);
    descriptor: (Ljavassist/bytecode/ClassFile;)Z
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=7, args_size=2
        start local 0 // org.hibernate.bytecode.internal.javassist.JavassistClassTransformer this
        start local 1 // javassist.bytecode.ClassFile classfile
         0: .line 154
            aload 1 /* classfile */
            invokevirtual javassist.bytecode.ClassFile.getInterfaces:()[Ljava/lang/String;
            astore 2 /* interfaces */
        start local 2 // java.lang.String[] interfaces
         1: .line 155
            aload 2 /* interfaces */
            dup
            astore 6
            arraylength
            istore 5
            iconst_0
            istore 4
            goto 6
      StackMap locals: org.hibernate.bytecode.internal.javassist.JavassistClassTransformer javassist.bytecode.ClassFile java.lang.String[] top int int java.lang.String[]
      StackMap stack:
         2: aload 6
            iload 4
            aaload
            astore 3 /* anInterface */
        start local 3 // java.lang.String anInterface
         3: .line 156
            ldc Lorg/hibernate/bytecode/internal/javassist/FieldHandled;
            invokevirtual java.lang.Class.getName:()Ljava/lang/String;
            aload 3 /* anInterface */
            invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
            ifeq 5
         4: .line 157
            iconst_1
            ireturn
        end local 3 // java.lang.String anInterface
         5: .line 155
      StackMap locals:
      StackMap stack:
            iinc 4 1
      StackMap locals:
      StackMap stack:
         6: iload 4
            iload 5
            if_icmplt 2
         7: .line 160
            iconst_0
            ireturn
        end local 2 // java.lang.String[] interfaces
        end local 1 // javassist.bytecode.ClassFile classfile
        end local 0 // org.hibernate.bytecode.internal.javassist.JavassistClassTransformer this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    8     0         this  Lorg/hibernate/bytecode/internal/javassist/JavassistClassTransformer;
            0    8     1    classfile  Ljavassist/bytecode/ClassFile;
            1    8     2   interfaces  [Ljava/lang/String;
            3    5     3  anInterface  Ljava/lang/String;
    MethodParameters:
           Name  Flags
      classfile  

  static org.hibernate.bytecode.buildtime.spi.FieldFilter access$0(org.hibernate.bytecode.internal.javassist.JavassistClassTransformer);
    descriptor: (Lorg/hibernate/bytecode/internal/javassist/JavassistClassTransformer;)Lorg/hibernate/bytecode/buildtime/spi/FieldFilter;
    flags: (0x1008) ACC_STATIC, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
         0: .line 52
            aload 0
            getfield org.hibernate.bytecode.internal.javassist.JavassistClassTransformer.fieldFilter:Lorg/hibernate/bytecode/buildtime/spi/FieldFilter;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
SourceFile: "JavassistClassTransformer.java"
NestMembers:
  org.hibernate.bytecode.internal.javassist.JavassistClassTransformer$1
InnerClasses:
  org.hibernate.bytecode.internal.javassist.JavassistClassTransformer$1