ObjectSerializationInputStream.java 文件源码

public Object readObject() throws ClassNotFoundException, IOException {
    int objectSize = in.readInt();
    if (objectSize <= 0) {
        throw new StreamCorruptedException("Invalid objectSize: " + objectSize);
    }
    if (objectSize > maxObjectSize) {
        throw new StreamCorruptedException("ObjectSize too big: " + objectSize + " (expected: <= " + maxObjectSize
                + ')');
    }

    IoBuffer buf = IoBuffer.allocate(objectSize + 4, false);
    buf.putInt(objectSize);
    in.readFully(buf.array(), 4, objectSize);
    buf.position(0);
    buf.limit(objectSize + 4);

    return buf.getObject(classLoader);
}