java.lang.instrument.Instrumentation.redefineClasses()方法的使用及代码示例

x33g5p2x  于2022-01-20 转载在 其他  
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本文整理了Java中java.lang.instrument.Instrumentation.redefineClasses()方法的一些代码示例，展示了Instrumentation.redefineClasses()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Instrumentation.redefineClasses()方法的具体详情如下：
包路径：java.lang.instrument.Instrumentation
类名称：Instrumentation
方法名：redefineClasses

Instrumentation.redefineClasses介绍

暂无

代码示例

代码示例来源：origin: redisson/redisson

@Override
protected void apply(Instrumentation instrumentation, Map<Class<?>, ClassDefinition> classDefinitions)
    throws UnmodifiableClassException, ClassNotFoundException {
  instrumentation.redefineClasses(classDefinitions.values().toArray(new ClassDefinition[classDefinitions.size()]));
}

代码示例来源：origin: dcevm/dcevm

public void redefineClasses(Map<Class<?>, byte[]> classes) throws ClassNotFoundException, UnmodifiableClassException {
 Instrumentation instrumentation = InstrumentationAgent.INSTRUMENTATION;
 if (instrumentation == null) {
  throw new IllegalStateException("Instrumentation agent is not properly installed!");
 }
 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);
}

代码示例来源：origin: scouter-project/scouter

private void hooking(Hook m) {
    // Never use dynamic hooking on AIX with JDK1.5
    if (SystemUtil.IS_AIX && SystemUtil.IS_JAVA_1_5) {
      return;
    }
    try {
      Class cls = Class.forName(m.classname, false, m.loader);
      ClassDefinition[] cd = new ClassDefinition[1];
      cd[0] = new ClassDefinition(cls, m.body);
      JavaAgent.getInstrumentation().redefineClasses(cd);
    } catch (Throwable t) {
      Logger.println("A149", "async hook fail:" + m.classname + " " + t);
    }
  }
}

代码示例来源：origin: scouter-project/scouter

private void hooking(Hook m) {
    // Never use dynamic hooking on AIX with JDK1.5
    if (SystemUtil.IS_AIX && SystemUtil.IS_JAVA_1_5) {
      return;
    }
    try {
      Class cls = Class.forName(m.classname, false, m.loader);
      ClassDefinition[] cd = new ClassDefinition[1];
      cd[0] = new ClassDefinition(cls, m.body);
      JavaAgent.getInstrumentation().redefineClasses(cd);
    } catch (Throwable t) {
      Logger.println("A149", "async hook fail:" + m.classname + " " + t);
    }
  }
}

代码示例来源：origin: HotswapProjects/HotswapAgent

@Override
public void run() {
  try {
    instrumentation.redefineClasses(new ClassDefinition(transformer.getClassBeingRedefined(), transformer
        .getClassfileBuffer()));
  } catch (Throwable t) {
    transformer.removeClassState();
    throw new RuntimeException(t);
  }
}

代码示例来源：origin: redisson/redisson

circularityLock.release();
try {
  instrumentation.redefineClasses(classDefinitions.toArray(new ClassDefinition[classDefinitions.size()]));
} finally {
  circularityLock.acquire();

代码示例来源：origin: scouter-project/scouter

private void redefine(StringSet clazzes) {
  Class[] loadedClasses = JavaAgent.getInstrumentation().getAllLoadedClasses();
  ArrayList<ClassDefinition> definitionList = new ArrayList<ClassDefinition>();
  boolean allSuccess = true;
  for (int i = 0; i < loadedClasses.length; i++) {
    if (clazzes.hasKey(loadedClasses[i].getName())) {
      try {
        byte[] buff = ClassUtil.getByteCode(loadedClasses[i]);
        if (buff == null) {
          continue;
        }
        definitionList.add(new ClassDefinition(loadedClasses[i], buff));
      } catch (Exception e) {
        allSuccess = false;
        break;
      }
    }
  }
  if (definitionList.size() > 0 && allSuccess) {
    try {
      JavaAgent.getInstrumentation().redefineClasses(definitionList.toArray(new ClassDefinition[definitionList.size()]));
    } catch (Throwable th) {
      Logger.println("A183", "redefine error : " + loadedClasses);
    }
  }
}

代码示例来源：origin: scouter-project/scouter

private void redefine(StringSet clazzes) {
  Class[] loadedClasses = JavaAgent.getInstrumentation().getAllLoadedClasses();
  ArrayList<ClassDefinition> definitionList = new ArrayList<ClassDefinition>();
  boolean allSuccess = true;
  for (int i = 0; i < loadedClasses.length; i++) {
    if (clazzes.hasKey(loadedClasses[i].getName())) {
      try {
        byte[] buff = ClassUtil.getByteCode(loadedClasses[i]);
        if (buff == null) {
          continue;
        }
        definitionList.add(new ClassDefinition(loadedClasses[i], buff));
      } catch (Exception e) {
        allSuccess = false;
        break;
      }
    }
  }
  if (definitionList.size() > 0 && allSuccess) {
    try {
      JavaAgent.getInstrumentation().redefineClasses(definitionList.toArray(new ClassDefinition[definitionList.size()]));
    } catch (Throwable th) {
      Logger.println("A183", "redefine error : " + loadedClasses);
    }
  }
}

代码示例来源：origin: org.javassist/javassist

/**
 * Redefines classes.
 */
public static void redefine(Class<?>[] oldClasses, CtClass[] newClasses)
  throws NotFoundException, IOException, CannotCompileException
{
  startAgent();
  ClassDefinition[] defs = new ClassDefinition[oldClasses.length];
  for (int i = 0; i < oldClasses.length; i++)
    defs[i] = new ClassDefinition(oldClasses[i], newClasses[i].toBytecode());
  try {
    instrumentation.redefineClasses(defs);
  }
  catch (ClassNotFoundException e) {
    throw new NotFoundException(e.getMessage(), e);
  }
  catch (UnmodifiableClassException e) {
    throw new CannotCompileException(e.getMessage(), e);
  }
}

代码示例来源：origin: scouter-project/scouter

JavaAgent.getInstrumentation().redefineClasses(definitionList.toArray(new ClassDefinition[definitionList.size()]));
  p.put("success", new BooleanValue(true));
} catch (Throwable th) {

代码示例来源：origin: scouter-project/scouter

JavaAgent.getInstrumentation().redefineClasses(definitionList.toArray(new ClassDefinition[definitionList.size()]));
  p.put("success", new BooleanValue(true));
} catch (Throwable th) {

代码示例来源：origin: scouter-project/scouter

JavaAgent.getInstrumentation().redefineClasses(definitionList.toArray(new ClassDefinition[definitionList.size()]));
  p.put("success", new BooleanValue(true));
} catch (Throwable th) {

代码示例来源：origin: scouter-project/scouter

/**
 * Redefines classes.
 */
public static void redefine(Class<?>[] oldClasses, CtClass[] newClasses)
  throws NotFoundException, IOException, CannotCompileException
{
  startAgent();
  ClassDefinition[] defs = new ClassDefinition[oldClasses.length];
  for (int i = 0; i < oldClasses.length; i++)
    defs[i] = new ClassDefinition(oldClasses[i], newClasses[i].toBytecode());
  try {
    instrumentation.redefineClasses(defs);
  }
  catch (ClassNotFoundException e) {
    throw new NotFoundException(e.getMessage(), e);
  }
  catch (UnmodifiableClassException e) {
    throw new CannotCompileException(e.getMessage(), e);
  }
}

代码示例来源：origin: hcoles/pitest

public static boolean hotSwap(final Class<?> mutateMe, final byte[] bytes) { // NO_UCD
 final ClassDefinition[] definitions = { new ClassDefinition(mutateMe, bytes) };
 try {
  instrumentation.redefineClasses(definitions);
  return true;
 } catch (final ClassNotFoundException e) {
  // swallow
 } catch (final UnmodifiableClassException e) {
  // swallow
 } catch (final java.lang.VerifyError e) {
  // swallow
 } catch (final java.lang.InternalError e) {
  // swallow
 }
 return false;
}

代码示例来源：origin: com.google.code.maven-play-plugin.org.playframework/play

public static void reload(ClassDefinition... definitions) throws UnmodifiableClassException, ClassNotFoundException {
    instrumentation.redefineClasses(definitions);
  }
}

代码示例来源：origin: org.testifyproject.external/external-bytebuddy

@Override
protected void apply(Instrumentation instrumentation, Map<Class<?>, ClassDefinition> classDefinitions)
    throws UnmodifiableClassException, ClassNotFoundException {
  instrumentation.redefineClasses(classDefinitions.values().toArray(new ClassDefinition[classDefinitions.size()]));
}

代码示例来源：origin: co.paralleluniverse/quasar-core

public static void redefine(Collection<ClassDefinition> classDefinitions) {
  try {
    instrumentation.redefineClasses(classDefinitions.toArray(new ClassDefinition[0]));
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

代码示例来源：origin: com.fitbur.external/external-bytebuddy

@Override
protected void apply(Instrumentation instrumentation, Map<Class<?>, ClassDefinition> classDefinitions)
    throws UnmodifiableClassException, ClassNotFoundException {
  instrumentation.redefineClasses(classDefinitions.values().toArray(new ClassDefinition[classDefinitions.size()]));
}

代码示例来源：origin: jmockit/jmockit1

private static void redefineClassForCoverage(@Nonnull Class<?> loadedClass, @Nonnull byte[] modifiedClassfile) {
 ClassDefinition[] classDefs = {new ClassDefinition(loadedClass, modifiedClassfile)};
 try {
   Startup.instrumentation().redefineClasses(classDefs);
 }
 catch (ClassNotFoundException | UnmodifiableClassException e) {
   throw new RuntimeException(e);
 }
}

代码示例来源：origin: org.jmockit/jmockit-coverage

private static void redefineClassForCoverage(@Nonnull Class<?> loadedClass, @Nonnull byte[] modifiedClassfile)
{
 ClassDefinition[] classDefs = {new ClassDefinition(loadedClass, modifiedClassfile)};
 try {
   Startup.instrumentation().redefineClasses(classDefs);
 }
 catch (ClassNotFoundException e) {
   throw new RuntimeException(e);
 }
 catch (UnmodifiableClassException e) {
   throw new RuntimeException(e);
 }
}

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