Bug 620214

Summary:	net-vpn/i2p-0.9.30: java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/LoopTag
Product:	Gentoo Linux	Reporter:	El Goretto <el.goretto>
Component:	Current packages	Assignee:	tharvik
Status:	RESOLVED INVALID
Severity:	normal	CC:	java, jstein, proxy-maint, tomboy64
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description El Goretto 2017-05-30 18:58:07 UTC

Symptoms:
In router.log:
30/05/17 15:11:18 WARN  [le Jetty-286] rg.eclipse.jetty.server.Server: : javax.servlet.ServletException: java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/LoopTag
And when you go to http://your_i2p_router:7657/susidns/addressbook?book=router you get an HTTP 500 error.

Cause:
wrapper.config seems to reference a deprecated path to JSTL jars.

Fix: 
In wrapper.config, 
Replace: wrapper.java.classpath.X=//usr/share/jakarta-jstl/lib/*.jar
By: wrapper.java.classpath.X=//usr/share/tomcat-jstl-spec/lib/*.jar
    wrapper.java.classpath.X+1=//usr/share/tomcat-jstl-impl/lib/*.jar

Comment 1 tharvik 2017-06-11 14:35:12 UTC

The main issue there is with i2p's ebuild is that, in order to avoid to reintroduce in the network, we have to keep some configuration. The wrapper.config in /var/lib/i2p/.i2p is not updated by newer ebuilds, as this is user generated, so, some old configuration won't be overwritten.

The fix you give is for an older version of the default config file, if you remove it and restart the daemon, it should work.

If you have any idea of how to improve this bad design, feel free!