Java ObjectInputStream
Java ObjectInputStream is a class in the Java.io package that is used to deserialize objects from an InputStream. It is part of Java's built-in serialization framework, which allows objects to be converted into a stream of bytes for storage or transmission, and then reconstructed back into objects. ObjectInputStream reads serialized objects from an InputStream and reconstructs them into Java objects. This process is commonly used in Java for tasks such as reading objects from files, network sockets, or other data sources. ObjectInputStream reconstructs objects in the same order and with the same types and values as they were serialized. However, it is important to note that deserialization can pose security risks if the serialized data is not trusted, as it may lead to vulnerabilities such as deserialization of malicious objects. Therefore, precautions should be taken, such as validating input and using techniques like object whitelisting or sandboxing, to ensure the security of deserialization operations.