What is the purpose of Serial Version UID in Java?

By arunraj

It is used to uniquely identify a serialized object's class during the process of deserialization.

For example, if an object is serialized and if the newer version of a class is available during the deserialization process, the Java runtime checks if the serial version UID of the loaded class matches with that of the object to be deserialized.

If the serial Version UID does not match then it will throw an InvalidClassException.

It is always a best practice to declare serialVUID for a serializable class.

Interview Questions:

Java

Search

Disclaimer Notice

THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS OF TECHDIVE.IN ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS OF TECHDIVE.IN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ANY COPYRIGHT INFRINGEMENT ON THE ARTICLES/CONTENT POSTED IN TECHDIVE.IN IS PURELY UN-INTENTIONAL AND NO LIABILITY CAN BE MADE AGAINST TECHDIVE.IN OR ITS CONTRIBUTORS.

The trademarks like Java, Spring, Spring Framework, Spring Web Flow, Oracle, SNMP, Shell Scripting, Log4j and other trademarks are property of their respective owners.

Please read our terms of use before using the site.