https://github.com/javaee/jpa-spec: Java(TM) Persistence API 
public interface javax.persistence.spi.ClassTransformer
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: javax.persistence.spi.ClassTransformer
  super_class: java.lang.Object
{
  public abstract byte[] transform(java.lang.ClassLoader, java.lang.String, java.lang.Class<?>, java.security.ProtectionDomain, );
    descriptor: (Ljava/lang/ClassLoader;Ljava/lang/String;Ljava/lang/Class;Ljava/security/ProtectionDomain;[B)[B
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.lang.instrument.IllegalClassFormatException
    Signature: (Ljava/lang/ClassLoader;Ljava/lang/String;Ljava/lang/Class<*>;Ljava/security/ProtectionDomain;[B)[B
    MethodParameters:
                     Name  Flags
      loader               
      className            
      classBeingRedefined  
      protectionDomain     
      classfileBuffer      
}
SourceFile: "ClassTransformer.java"