Examples of java.lang.instrument.ClassDefinition

java.lang.instrument.ClassDefinition
This class serves as a parameter block to the Instrumentation.redefineClasses method. Serves to bind the Class that needs redefining together with the new class file bytes. @see java.lang.instrument.Instrumentation#redefineClasses @since 1.5

        ClassDefinition[] changes = new ClassDefinition[changeSet.getElements().size()];
        int index = 0;
        for (Iterator it = changeSet.getElements().iterator(); it.hasNext(); index++) {
            ChangeSet.Element changeSetElement = (ChangeSet.Element) it.next();
            final byte[] bytecode = JoinPointFactory.redefineJoinPoint(changeSetElement.getCompilationInfo());
            changes[index] = new ClassDefinition(changeSetElement.getJoinPointInfo().getJoinPointClass(), bytecode);
        }
        try {
            Agent.getInstrumentation().redefineClasses(changes);
        } catch (Exception e) {
            throw new WrappedRuntimeException(e);

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/* 51 */     this.classDefinitions = new ArrayList();
/*    */   }
/*    */ 
/*    */   public synchronized void registerChange(Class clazz, byte[] classCode)
/*    */   {
/* 61 */     ClassDefinition classDef = new ClassDefinition(clazz, classCode);
/* 62 */     this.classDefinitions.add(classDef);
/*    */   }

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        }


        ClassDefinition[] definitions = new ClassDefinition[classes.size()];
        int i = 0;
        for (Map.Entry<Class<?>, byte[]> entry : classes.entrySet()) {
            definitions[i++] = new ClassDefinition(entry.getKey(), entry.getValue());
        }
        instrumentation.redefineClasses(definitions);
    }

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    * @param clazz the clazz to be redefined.
    * @param classCode the new byte code implementation of <code>clazz</code>.
    */
   public synchronized void registerChange(Class clazz, byte[] classCode)
   {
      ClassDefinition classDef = new ClassDefinition(clazz, classCode);
      this.classDefinitions.add(classDef);
   }

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                            //Adding the transformer
                            transformers.add( transformer );
                            instrumentation.addTransformer( transformer, true );


                            //And finally redefine the class
                            ClassDefinition classDefinition = new ClassDefinition( currentClass, byteCode );
                            instrumentation.redefineClasses( classDefinition );
                        }
                    } catch ( ClassNotFoundException e ) {
                        //If the class has not been loaded we don't need to redefine it
                    }

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