I am executing a swing base application from Netbeans and have got below error message. Any Idea, please help to know.
System Error: #5000001: java.io.InvalidClassException: com.matrixone.apps.domain.util.MapList; local class incompatible: stream classdesc serialVersionUID = 2137290906967962447, local class serialVersionUID = -3551146439161972187
Your class file has changed since you serialized it. Unless you've added, removed or changed non-transient fields, you can solve this by adding a private static final long serialVersionUID field to your class. You can let your IDE generate it for you, or use the serialver executable inside your JDK's bin folder.