If you have troubles with incorrectly displayed characters, like in MID-3772 - Getting issue details... STATUS , try add this parameters in JAVA_OPTS variable:
-Duser.country=US -Duser.language=en
For Tomcat, this is commonly saved in Tomcat's home directory in bin/setenv.sh or bin/catalina.sh, on Windows in bin\setenv.bat or bin\catalina.bat.
To check current values of these JVM options, run this command:
jinfo -sysprops <PID>