Monitoring Service pdf view

Hello.

I have problem with plugin Monitoring Service. If I view hostory in PDF, I can`t see non english symbols like russian. In web console I see all symbols in Archiving without problems.

There is a ticket filed for this https://issues.igniterealtime.org/browse/OF-404

I have Openfire 4.2.3 on Ubuntu server 16.04. May be anybody have recompiled Monitoring Service with new font with russian symbols support?
I try to compile and i got an error:
C:\Program Files\Java\jdk1.7.0_51\bin>javac ConversationUtils.java
ConversationUtils.java:62: error: not a statement
_ e;_
_ ^_
ConversationUtils.java:203: error: not a statement
_ e;_
_ ^_
2 errors

Anybody can help me with this issue?
Can you help me how decompile and again compile .class files?
Thanks!

Where I can find source code of Monitoring service plugin last version or may be anybody have compiled this plugin with UTF font?

https://github.com/igniterealtime/Openfire/tree/master/plugins/monitoring

Ok, thank’s. Anybody know how correct compile and create jar for this plugin in Intellij IDEA?

I create with File-Project Structure-Artifacts-±JAR-From modules with dependencies-Module monitoring-OK-Apply-Ok. Than Build-Build Artifacts-monitoring.jar-Build.
Next I look in jar archive and there is no folder lib, database,web, i18n and files .gif, .html, .xml. In my jar another structure.