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Frontpage, Dreamweaver _vti_cnf and Java deployment - null is not a Java .class file

Q: Web application is not getting deployed and the following werrors can be seen in catalina.out

SEVERE: Unable to process file [/home/user/apache-tomcat-7.0.42/webapps/ROOT/WEB-INF/classes/com/lre/utils/_vti_cnf/Util.class] for annotations 
org.apache.tomcat.util.bcel.classfile.ClassFormatException: null is not a Java .class file
..
SEVERE: Unable to process file [/home/user/apache-tomcat-7.0.42/webapps/ROOT/WEB-INF/classes/org/apache/jsp/_vti_cnf/index_jsp.class] for annotations
org.apache.tomcat.util.bcel.classfile.ClassFormatException: null is not a Java .class file

A: This is caused by presence of .class file which are indeed not regluar Java class files but FrontPage or Dreamweaver generated files.

You need to remove them or better strip all the _vti_* directorues from your application direcotry on our server or from your WAR befor uploading it again.

To remove them on the server stop tomcat (jk), then run

find ~/appservers -type d -name "_vti_*" -exec rm -rf {} +

and finally start tomcat (js).