WebLogic Deployment Report Java.lang.ClassCastException:weblogic.xml.jaxp.RegistrySAXParserFactory cannot is cast to Javax.xml.parsers.SAXParserFactory

Today, when the WebLogic project was deployed, Java.lang.ClassCastException:weblogic.xml.jaxp.RegistrySAXParserFactory cannot was cast to Javax.xml.parsers.SAXParserFactory exception.

After querying the cause of the error, it was found that the exception was caused by a jar package conflict.

Most developers use Tomcat on-premises, and Tomcat does not have this jar package, which requires the addition of a jar package Xml-apis.jar, but the goose WebLogic comes with the jar package, so the jar package naturally conflicts when deployed to WebLogic.

Solutions

Delete the Xml-apis.jar in the war package.

WebLogic Deployment Report Java.lang.ClassCastException:weblogic.xml.jaxp.RegistrySAXParserFactory cannot is cast to Javax.xml.parsers.SAXParserFactory