java.io.ObjectInputStream.readClassDesc()方法的使用及代码示例

x33g5p2x  于2022-01-25 转载在 其他  
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本文整理了Java中java.io.ObjectInputStream.readClassDesc()方法的一些代码示例，展示了ObjectInputStream.readClassDesc()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。ObjectInputStream.readClassDesc()方法的具体详情如下：
包路径：java.io.ObjectInputStream
类名称：ObjectInputStream
方法名：readClassDesc

ObjectInputStream.readClassDesc介绍

[英]Reads a class descriptor (an ObjectStreamClass) from the stream.
[中]从流中读取类描述符（ObjectStreamClass）。

代码示例

代码示例来源：origin: robovm/robovm

ObjectStreamClass classDesc = readClassDesc();

代码示例来源：origin: robovm/robovm

private ObjectStreamClass readEnumDescInternal() throws IOException, ClassNotFoundException {
  ObjectStreamClass classDesc;
  primitiveData = input;
  int oldHandle = descriptorHandle;
  descriptorHandle = nextHandle();
  classDesc = readClassDescriptor();
  registerObjectRead(classDesc, descriptorHandle, false);
  descriptorHandle = oldHandle;
  primitiveData = emptyStream;
  classDesc.setClass(resolveClass(classDesc));
  // Consume unread class annotation data and TC_ENDBLOCKDATA
  discardData();
  ObjectStreamClass superClass = readClassDesc();
  checkedSetSuperClassDesc(classDesc, superClass);
  // Check SUIDs, note all SUID for Enum is 0L
  if (0L != classDesc.getSerialVersionUID() || 0L != superClass.getSerialVersionUID()) {
    throw new InvalidClassException(superClass.getName(),
        "Incompatible class (SUID): " + superClass + " but expected " + superClass);
  }
  byte tc = nextTC();
  // discard TC_ENDBLOCKDATA after classDesc if any
  if (tc == TC_ENDBLOCKDATA) {
    // read next parent class. For enum, it may be null
    superClass.setSuperclass(readClassDesc());
  } else {
    // not TC_ENDBLOCKDATA, push back for next read
    pushbackTC();
  }
  return classDesc;
}

代码示例来源：origin: robovm/robovm

checkedSetSuperClassDesc(newClassDesc, readClassDesc());
return newClassDesc;

代码示例来源：origin: robovm/robovm

/**
 * Reads a new class from the receiver. It is assumed the class has not been
 * read yet (not a cyclic reference). Return the class read.
 *
 * @param unshared
 *            read the object unshared
 * @return The {@code java.lang.Class} read from the stream.
 *
 * @throws IOException
 *             If an IO exception happened when reading the class.
 * @throws ClassNotFoundException
 *             If a class for one of the objects could not be found
 */
private Class<?> readNewClass(boolean unshared) throws ClassNotFoundException, IOException {
  ObjectStreamClass classDesc = readClassDesc();
  if (classDesc == null) {
    throw missingClassDescriptor();
  }
  Class<?> localClass = classDesc.forClass();
  if (localClass != null) {
    registerObjectRead(localClass, nextHandle(), unshared);
  }
  return localClass;
}

代码示例来源：origin: MobiVM/robovm

private ObjectStreamClass readEnumDescInternal() throws IOException, ClassNotFoundException {
  ObjectStreamClass classDesc;
  primitiveData = input;
  int oldHandle = descriptorHandle;
  descriptorHandle = nextHandle();
  classDesc = readClassDescriptor();
  registerObjectRead(classDesc, descriptorHandle, false);
  descriptorHandle = oldHandle;
  primitiveData = emptyStream;
  classDesc.setClass(resolveClass(classDesc));
  // Consume unread class annotation data and TC_ENDBLOCKDATA
  discardData();
  ObjectStreamClass superClass = readClassDesc();
  checkedSetSuperClassDesc(classDesc, superClass);
  // Check SUIDs, note all SUID for Enum is 0L
  if (0L != classDesc.getSerialVersionUID() || 0L != superClass.getSerialVersionUID()) {
    throw new InvalidClassException(superClass.getName(),
        "Incompatible class (SUID): " + superClass + " but expected " + superClass);
  }
  byte tc = nextTC();
  // discard TC_ENDBLOCKDATA after classDesc if any
  if (tc == TC_ENDBLOCKDATA) {
    // read next parent class. For enum, it may be null
    superClass.setSuperclass(readClassDesc());
  } else {
    // not TC_ENDBLOCKDATA, push back for next read
    pushbackTC();
  }
  return classDesc;
}

代码示例来源：origin: robovm/robovm

streamClass.setLoadFields(ObjectStreamClass.NO_FIELDS);
  registerObjectRead(streamClass, nextHandle(), false);
  checkedSetSuperClassDesc(streamClass, readClassDesc());
  return streamClass;
case TC_REFERENCE:

代码示例来源：origin: ibinti/bugvm

private ObjectStreamClass readEnumDescInternal() throws IOException, ClassNotFoundException {
  ObjectStreamClass classDesc;
  primitiveData = input;
  int oldHandle = descriptorHandle;
  descriptorHandle = nextHandle();
  classDesc = readClassDescriptor();
  registerObjectRead(classDesc, descriptorHandle, false);
  descriptorHandle = oldHandle;
  primitiveData = emptyStream;
  classDesc.setClass(resolveClass(classDesc));
  // Consume unread class annotation data and TC_ENDBLOCKDATA
  discardData();
  ObjectStreamClass superClass = readClassDesc();
  checkedSetSuperClassDesc(classDesc, superClass);
  // Check SUIDs, note all SUID for Enum is 0L
  if (0L != classDesc.getSerialVersionUID() || 0L != superClass.getSerialVersionUID()) {
    throw new InvalidClassException(superClass.getName(),
        "Incompatible class (SUID): " + superClass + " but expected " + superClass);
  }
  byte tc = nextTC();
  // discard TC_ENDBLOCKDATA after classDesc if any
  if (tc == TC_ENDBLOCKDATA) {
    // read next parent class. For enum, it may be null
    superClass.setSuperclass(readClassDesc());
  } else {
    // not TC_ENDBLOCKDATA, push back for next read
    pushbackTC();
  }
  return classDesc;
}

代码示例来源：origin: robovm/robovm

ObjectStreamClass classDesc = readClassDesc();

代码示例来源：origin: com.bugvm/bugvm-rt

private ObjectStreamClass readEnumDescInternal() throws IOException, ClassNotFoundException {
  ObjectStreamClass classDesc;
  primitiveData = input;
  int oldHandle = descriptorHandle;
  descriptorHandle = nextHandle();
  classDesc = readClassDescriptor();
  registerObjectRead(classDesc, descriptorHandle, false);
  descriptorHandle = oldHandle;
  primitiveData = emptyStream;
  classDesc.setClass(resolveClass(classDesc));
  // Consume unread class annotation data and TC_ENDBLOCKDATA
  discardData();
  ObjectStreamClass superClass = readClassDesc();
  checkedSetSuperClassDesc(classDesc, superClass);
  // Check SUIDs, note all SUID for Enum is 0L
  if (0L != classDesc.getSerialVersionUID() || 0L != superClass.getSerialVersionUID()) {
    throw new InvalidClassException(superClass.getName(),
        "Incompatible class (SUID): " + superClass + " but expected " + superClass);
  }
  byte tc = nextTC();
  // discard TC_ENDBLOCKDATA after classDesc if any
  if (tc == TC_ENDBLOCKDATA) {
    // read next parent class. For enum, it may be null
    superClass.setSuperclass(readClassDesc());
  } else {
    // not TC_ENDBLOCKDATA, push back for next read
    pushbackTC();
  }
  return classDesc;
}

代码示例来源：origin: stackoverflow.com

Exception in thread "main" java.io.InvalidClassException: TestData; Serializable incompatible with Externalizable
 at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:634)
 at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1623)
 at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1518)
 at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1774)
 at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
 at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
 at ReadIt.main(ReadIt.java:10)

代码示例来源：origin: com.jtransc/jtransc-rt

/**
 * Reads a new class from the receiver. It is assumed the class has not been
 * read yet (not a cyclic reference). Return the class read.
 *
 * @param unshared read the object unshared
 * @return The {@code java.lang.Class} read from the stream.
 * @throws IOException            If an IO exception happened when reading the class.
 * @throws ClassNotFoundException If a class for one of the objects could not be found
 */
private Class<?> readNewClass(boolean unshared) throws ClassNotFoundException, IOException {
  ObjectStreamClass classDesc = readClassDesc();
  if (classDesc == null) {
    throw missingClassDescriptor();
  }
  Class<?> localClass = classDesc.forClass();
  if (localClass != null) {
    registerObjectRead(localClass, nextHandle(), unshared);
  }
  return localClass;
}

代码示例来源：origin: MobiVM/robovm

/**
 * Reads a new class from the receiver. It is assumed the class has not been
 * read yet (not a cyclic reference). Return the class read.
 *
 * @param unshared
 *            read the object unshared
 * @return The {@code java.lang.Class} read from the stream.
 *
 * @throws IOException
 *             If an IO exception happened when reading the class.
 * @throws ClassNotFoundException
 *             If a class for one of the objects could not be found
 */
private Class<?> readNewClass(boolean unshared) throws ClassNotFoundException, IOException {
  ObjectStreamClass classDesc = readClassDesc();
  if (classDesc == null) {
    throw missingClassDescriptor();
  }
  Class<?> localClass = classDesc.forClass();
  if (localClass != null) {
    registerObjectRead(localClass, nextHandle(), unshared);
  }
  return localClass;
}

代码示例来源：origin: org.apidesign.bck2brwsr/emul

/**
 * Reads in and returns class object.  Sets passHandle to class object's
 * assigned handle.  Returns null if class is unresolvable (in which case a
 * ClassNotFoundException will be associated with the class' handle in the
 * handle table).
 */
private Class readClass(boolean unshared) throws IOException {
  if (bin.readByte() != TC_CLASS) {
    throw new InternalError();
  }
  ObjectStreamClass desc = readClassDesc(false);
  Class cl = desc.forClass();
  passHandle = handles.assign(unshared ? unsharedMarker : cl);
  ClassNotFoundException resolveEx = desc.getResolveException();
  if (resolveEx != null) {
    handles.markException(passHandle, resolveEx);
  }
  handles.finish(passHandle);
  return cl;
}

代码示例来源：origin: ibinti/bugvm

/**
 * Reads a new class from the receiver. It is assumed the class has not been
 * read yet (not a cyclic reference). Return the class read.
 *
 * @param unshared
 *            read the object unshared
 * @return The {@code java.lang.Class} read from the stream.
 *
 * @throws IOException
 *             If an IO exception happened when reading the class.
 * @throws ClassNotFoundException
 *             If a class for one of the objects could not be found
 */
private Class<?> readNewClass(boolean unshared) throws ClassNotFoundException, IOException {
  ObjectStreamClass classDesc = readClassDesc();
  if (classDesc == null) {
    throw missingClassDescriptor();
  }
  Class<?> localClass = classDesc.forClass();
  if (localClass != null) {
    registerObjectRead(localClass, nextHandle(), unshared);
  }
  return localClass;
}

代码示例来源：origin: com.mobidevelop.robovm/robovm-rt

/**
 * Reads a new class from the receiver. It is assumed the class has not been
 * read yet (not a cyclic reference). Return the class read.
 *
 * @param unshared
 *            read the object unshared
 * @return The {@code java.lang.Class} read from the stream.
 *
 * @throws IOException
 *             If an IO exception happened when reading the class.
 * @throws ClassNotFoundException
 *             If a class for one of the objects could not be found
 */
private Class<?> readNewClass(boolean unshared) throws ClassNotFoundException, IOException {
  ObjectStreamClass classDesc = readClassDesc();
  if (classDesc == null) {
    throw missingClassDescriptor();
  }
  Class<?> localClass = classDesc.forClass();
  if (localClass != null) {
    registerObjectRead(localClass, nextHandle(), unshared);
  }
  return localClass;
}

代码示例来源：origin: com.gluonhq/robovm-rt

/**
 * Reads a new class from the receiver. It is assumed the class has not been
 * read yet (not a cyclic reference). Return the class read.
 *
 * @param unshared
 *            read the object unshared
 * @return The {@code java.lang.Class} read from the stream.
 *
 * @throws IOException
 *             If an IO exception happened when reading the class.
 * @throws ClassNotFoundException
 *             If a class for one of the objects could not be found
 */
private Class<?> readNewClass(boolean unshared) throws ClassNotFoundException, IOException {
  ObjectStreamClass classDesc = readClassDesc();
  if (classDesc == null) {
    throw missingClassDescriptor();
  }
  Class<?> localClass = classDesc.forClass();
  if (localClass != null) {
    registerObjectRead(localClass, nextHandle(), unshared);
  }
  return localClass;
}

代码示例来源：origin: com.bugvm/bugvm-rt

/**
 * Reads a new class from the receiver. It is assumed the class has not been
 * read yet (not a cyclic reference). Return the class read.
 *
 * @param unshared
 *            read the object unshared
 * @return The {@code java.lang.Class} read from the stream.
 *
 * @throws IOException
 *             If an IO exception happened when reading the class.
 * @throws ClassNotFoundException
 *             If a class for one of the objects could not be found
 */
private Class<?> readNewClass(boolean unshared) throws ClassNotFoundException, IOException {
  ObjectStreamClass classDesc = readClassDesc();
  if (classDesc == null) {
    throw missingClassDescriptor();
  }
  Class<?> localClass = classDesc.forClass();
  if (localClass != null) {
    registerObjectRead(localClass, nextHandle(), unshared);
  }
  return localClass;
}

代码示例来源：origin: jtulach/bck2brwsr

/**
 * Reads in and returns class object.  Sets passHandle to class object's
 * assigned handle.  Returns null if class is unresolvable (in which case a
 * ClassNotFoundException will be associated with the class' handle in the
 * handle table).
 */
private Class readClass(boolean unshared) throws IOException {
  if (bin.readByte() != TC_CLASS) {
    throw new InternalError();
  }
  ObjectStreamClass desc = readClassDesc(false);
  Class cl = desc.forClass();
  passHandle = handles.assign(unshared ? unsharedMarker : cl);
  ClassNotFoundException resolveEx = desc.getResolveException();
  if (resolveEx != null) {
    handles.markException(passHandle, resolveEx);
  }
  handles.finish(passHandle);
  return cl;
}

代码示例来源：origin: FlexoVM/flexovm

/**
 * Reads a new class from the receiver. It is assumed the class has not been
 * read yet (not a cyclic reference). Return the class read.
 *
 * @param unshared
 *            read the object unshared
 * @return The {@code java.lang.Class} read from the stream.
 *
 * @throws IOException
 *             If an IO exception happened when reading the class.
 * @throws ClassNotFoundException
 *             If a class for one of the objects could not be found
 */
private Class<?> readNewClass(boolean unshared) throws ClassNotFoundException, IOException {
  ObjectStreamClass classDesc = readClassDesc();
  if (classDesc == null) {
    throw missingClassDescriptor();
  }
  Class<?> localClass = classDesc.forClass();
  if (localClass != null) {
    registerObjectRead(localClass, nextHandle(), unshared);
  }
  return localClass;
}

代码示例来源：origin: MobiVM/robovm

streamClass.setLoadFields(ObjectStreamClass.NO_FIELDS);
  registerObjectRead(streamClass, nextHandle(), false);
  checkedSetSuperClassDesc(streamClass, readClassDesc());
  return streamClass;
case TC_REFERENCE:

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