Why after upgrading to Spectrum 10.3.2, does OneClick no longer allow me to login.
I get a 500 error when OneClick starts and in the tomcat log I see this error message several times
An error occurred at line:  in the generated java file: [:\Spectrum\tomcat\work\Catalina\localhost\spectrum\org\apache\jsp\index_jsp.java]
Syntax error, parameterized types are only available if source level is 1.5 or greater
This is due to leftover Java JAR files, that are affecting OneClick startup. The process to resolve this is as follows:
1. Stop Tomcat process.
2. Remove all old versions of ecj*.jar files located in the $SPECROOT/tomcat/lib directory, leaving only the current version of this file:
3. Rename $SPECROOT/tomcat/work directory (it will be recreated on tomcat restart).
4. Start Tomcat.
This problem has also been seen when upgrading from Spectrum 10.2.3 to Spectrum 10.3.1 or 10.3.2.