本文整理了Java中java.lang.reflect.Constructor.setAccessible()方法的一些代码示例，展示了Constructor.setAccessible()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。Constructor.setAccessible()方法的具体详情如下：
包路径：java.lang.reflect.Constructor
类名称：Constructor
方法名：setAccessible

Constructor.setAccessible介绍

暂无

代码示例

代码示例来源：origin: libgdx/libgdx

public void setAccessible (boolean accessible) {
  constructor.setAccessible(accessible);
}

代码示例来源：origin: libgdx/libgdx

public void setAccessible (boolean accessible) {
  constructor.setAccessible(accessible);
}

代码示例来源：origin: redisson/redisson

public AccessibleInstantiator(Class<T> type) {
   super(type);
   if(constructor != null) {
     constructor.setAccessible(true);
   }
  }
}

代码示例来源：origin: spring-projects/spring-framework

/**
 * Make the given constructor accessible, explicitly setting it accessible
 * if necessary. The {@code setAccessible(true)} method is only called
 * when actually necessary, to avoid unnecessary conflicts with a JVM
 * SecurityManager (if active).
 * @param ctor the constructor to make accessible
 * @see java.lang.reflect.Constructor#setAccessible
 */
@SuppressWarnings("deprecation")  // on JDK 9
public static void makeAccessible(Constructor<?> ctor) {
  if ((!Modifier.isPublic(ctor.getModifiers()) ||
      !Modifier.isPublic(ctor.getDeclaringClass().getModifiers())) && !ctor.isAccessible()) {
    ctor.setAccessible(true);
  }
}

代码示例来源：origin: apache/incubator-shardingsphere

@SneakyThrows
private static Constructor<JdbcXAConnection> getH2JdbcXAConstructor() {
  Constructor<JdbcXAConnection> result = JdbcXAConnection.class.getDeclaredConstructor(JdbcDataSourceFactory.class, Integer.TYPE, JdbcConnection.class);
  result.setAccessible(true);
  return result;
}

代码示例来源：origin: spring-projects/spring-framework

public static Constructor getConstructor(Class type, Class[] parameterTypes) {
  try {
    Constructor constructor = type.getDeclaredConstructor(parameterTypes);
    constructor.setAccessible(true);
    return constructor;
  }
  catch (NoSuchMethodException e) {
    throw new CodeGenerationException(e);
  }
}

代码示例来源：origin: redisson/redisson

/**
 * {@inheritDoc}
 */
public Dispatcher run() {
  // This is safe even in a multi-threaded environment as all threads set the instances accessible before invoking any methods.
  // By always setting accessibility, the security manager is always triggered if this operation was illegal.
  methodInfo.setAccessible(true);
  getName.setAccessible(true);
  getDeclaringClass.setAccessible(true);
  getReferenceKind.setAccessible(true);
  getMethodType.setAccessible(true);
  return this;
}

代码示例来源：origin: redisson/redisson

private <T> T instantiate(Class<T> cls, Object id) {
  try {
    for (Constructor<?> constructor : cls.getDeclaredConstructors()) {
      if (constructor.getParameterTypes().length == 0) {
        constructor.setAccessible(true);
        return (T) constructor.newInstance();
      }
    }
  } catch (Exception e) {
    throw new IllegalArgumentException(e);
  }
  throw new IllegalArgumentException("Can't find default constructor for " + cls);
}

代码示例来源：origin: redisson/redisson

private <T> T instantiate(Class<T> cls, Object id) {
  try {
    for (Constructor<?> constructor : cls.getDeclaredConstructors()) {
      if (constructor.getParameterTypes().length == 0) {
        constructor.setAccessible(true);
        return (T) constructor.newInstance();
      }
    }
  } catch (Exception e) {
    throw new IllegalArgumentException(e);
  }
  throw new IllegalArgumentException("Can't find default constructor for " + cls);
}

代码示例来源：origin: alibaba/druid

public static XAConnection createXAConnection(Object factory, Connection physicalConn) throws SQLException {
  try {
    if (constructor == null) {
      constructor = JdbcXAConnection.class.getDeclaredConstructor(JdbcDataSourceFactory.class, int.class,
                                JdbcConnection.class);
      constructor.setAccessible(true);
    }
    int id = getNextId(XA_DATA_SOURCE);
    return constructor.newInstance(factory, id, physicalConn);
  } catch (Exception e) {
    throw new SQLException("createXAConnection error", e);
  }
}

代码示例来源：origin: spring-projects/spring-framework

public WebSphereClassLoaderAdapter(ClassLoader classLoader) {
  Class<?> wsCompoundClassLoaderClass;
  try {
    wsCompoundClassLoaderClass = classLoader.loadClass(COMPOUND_CLASS_LOADER_NAME);
    this.cloneConstructor = classLoader.getClass().getDeclaredConstructor(wsCompoundClassLoaderClass);
    this.cloneConstructor.setAccessible(true);
    this.wsPreProcessorClass = classLoader.loadClass(CLASS_PRE_PROCESSOR_NAME);
    this.addPreDefinePlugin = classLoader.getClass().getMethod("addPreDefinePlugin", this.wsPreProcessorClass);
    this.transformerList = wsCompoundClassLoaderClass.getDeclaredField(PLUGINS_FIELD);
    this.transformerList.setAccessible(true);
  }
  catch (Throwable ex) {
    throw new IllegalStateException(
        "Could not initialize WebSphere LoadTimeWeaver because WebSphere API classes are not available", ex);
  }
  if (!wsCompoundClassLoaderClass.isInstance(classLoader)) {
    throw new IllegalArgumentException(
        "ClassLoader must be an instance of [" + COMPOUND_CLASS_LOADER_NAME + "]: " + classLoader);
  }
  this.classLoader = classLoader;
}

代码示例来源：origin: google/guava

/**
 * Verifies that {@code ctor} produces a {@link NullPointerException} or {@link
 * UnsupportedOperationException} when the parameter in position {@code paramIndex} is null. If
 * this parameter is marked nullable, this method does nothing.
 */
public void testConstructorParameter(Constructor<?> ctor, int paramIndex) {
 ctor.setAccessible(true);
 testParameter(null, Invokable.from(ctor), paramIndex, ctor.getDeclaringClass());
}

代码示例来源：origin: square/retrofit

@Override Object invokeDefaultMethod(Method method, Class<?> declaringClass, Object object,
  @Nullable Object... args) throws Throwable {
 // Because the service interface might not be public, we need to use a MethodHandle lookup
 // that ignores the visibility of the declaringClass.
 Constructor<Lookup> constructor = Lookup.class.getDeclaredConstructor(Class.class, int.class);
 constructor.setAccessible(true);
 return constructor.newInstance(declaringClass, -1 /* trusted */)
   .unreflectSpecial(method, declaringClass)
   .bindTo(object)
   .invokeWithArguments(args);
}

代码示例来源：origin: spring-projects/spring-framework

@SuppressWarnings("deprecation")  // on JDK 9
public static Object newInstance(final Constructor cstruct, final Object[] args) {
  boolean flag = cstruct.isAccessible();
  try {
    if (!flag) {
      cstruct.setAccessible(true);
    }
    Object result = cstruct.newInstance(args);
    return result;
  }
  catch (InstantiationException e) {
    throw new CodeGenerationException(e);
  }
  catch (IllegalAccessException e) {
    throw new CodeGenerationException(e);
  }
  catch (InvocationTargetException e) {
    throw new CodeGenerationException(e.getTargetException());
  }
  finally {
    if (!flag) {
      cstruct.setAccessible(flag);
    }
  }
}

代码示例来源：origin: apache/incubator-dubbo

public BeanDeserializer(Class cl) {
  _type = cl;
  _methodMap = getMethodMap(cl);
  _readResolve = getReadResolve(cl);
  Constructor[] constructors = cl.getConstructors();
  int bestLength = Integer.MAX_VALUE;
  for (int i = 0; i < constructors.length; i++) {
    if (constructors[i].getParameterTypes().length < bestLength) {
      _constructor = constructors[i];
      bestLength = _constructor.getParameterTypes().length;
    }
  }
  if (_constructor != null) {
    _constructor.setAccessible(true);
    Class[] params = _constructor.getParameterTypes();
    _constructorArgs = new Object[params.length];
    for (int i = 0; i < params.length; i++) {
      _constructorArgs[i] = getParamArg(params[i]);
    }
  }
}

代码示例来源：origin: jenkinsci/jenkins

private void swap(StandardOutputStream stdout) throws IOException, NoSuchMethodException, InstantiationException, IllegalAccessException, java.lang.reflect.InvocationTargetException {
    // duplicate the OS file descriptor and create FileOutputStream around it
    int out = GNUCLibrary.LIBC.dup(1);
    if (out<0)      throw new IOException("Failed to dup(1)");
    Constructor<FileDescriptor> c = FileDescriptor.class.getDeclaredConstructor(int.class);
    c.setAccessible(true);
    FileOutputStream fos = new FileOutputStream(c.newInstance(out));
    // swap it into channel so that it'll use the new file descriptor
    stdout.swap(fos);
    // close fd=1 (stdout) and duplicate fd=2 (stderr) into fd=1 (stdout)
    GNUCLibrary.LIBC.close(1);
    GNUCLibrary.LIBC.dup2(2,1);
  }
}

代码示例来源：origin: redisson/redisson

protected Object createInstance(ScalarNode node, CompactData data) throws Exception {
  Class<?> clazz = getClassForName(data.getPrefix());
  Class<?>[] args = new Class[data.getArguments().size()];
  for (int i = 0; i < args.length; i++) {
    // assume all the arguments are Strings
    args[i] = String.class;
  }
  java.lang.reflect.Constructor<?> c = clazz.getDeclaredConstructor(args);
  c.setAccessible(true);
  return c.newInstance(data.getArguments().toArray());
}

代码示例来源：origin: redisson/redisson

public SunReflectionFactoryInstantiator(Class<T> type) {
 Constructor<Object> javaLangObjectConstructor = getJavaLangObjectConstructor();
 mungedConstructor = SunReflectionFactoryHelper.newConstructorForSerialization(
   type, javaLangObjectConstructor);
 mungedConstructor.setAccessible(true);
}

代码示例来源：origin: prestodb/presto

private static Constructor<? extends RecordWriter> getOrcWriterConstructor()
{
  try {
    Constructor<? extends RecordWriter> constructor = OrcOutputFormat.class.getClassLoader()
        .loadClass(ORC_RECORD_WRITER)
        .asSubclass(RecordWriter.class)
        .getDeclaredConstructor(Path.class, WriterOptions.class);
    constructor.setAccessible(true);
    return constructor;
  }
  catch (ReflectiveOperationException e) {
    throw new RuntimeException(e);
  }
}

代码示例来源：origin: ReactiveX/RxJava

/**
 * Validates that the given class, when forcefully instantiated throws
 * an IllegalArgumentException("No instances!") exception.
 * @param clazz the class to test, not null
 */
public static void checkUtilityClass(Class<?> clazz) {
  try {
    Constructor<?> c = clazz.getDeclaredConstructor();
    c.setAccessible(true);
    try {
      c.newInstance();
      fail("Should have thrown InvocationTargetException(IllegalStateException)");
    } catch (InvocationTargetException ex) {
      assertEquals("No instances!", ex.getCause().getMessage());
    }
  } catch (Exception ex) {
    AssertionError ae = new AssertionError(ex.toString());
    ae.initCause(ex);
    throw ae;
  }
}