java.lang.SecurityException: org.xml.sax.SAXNotRecognizedException: Feature: http://apache.org/xml/features/allow-java-encodings

Question

I have a tomcat web application written in Struts. It runs well in Linux with Tomcat 7 and Java 7. When I migrated it to Windows 10 under Tom

Answer 1

add the following properties to TOMCAT_HOME/conf/catalina.properties:

• javax.xml.parsers.DocumentBuilderFactory=com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl
• javax.xml.transform.TransformerFactory=com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl
• javax.xml.parsers.SAXParserFactory=com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl
• javax.xml.datatype.DatatypeFactory=com.sun.org.apache.xerces.internal.jaxp.datatype.DatatypeFactoryImpl

source

Answer 2

I got almost same error while launching Spring Boot 2 App.

I excluded crimson.jar, and it works.

ref. https://tomcat.apache.org/tomcat-9.0-doc/class-loader-howto.html#XML_Parsers_and_Java