Issue Summary

Custom avatars in Bamboo fail to load when using Bamboo in a locale that generates dates with unicode characters.

Steps to Reproduce

1. Start Bamboo with a locale that produces dates with non-ASCII characters
2. Try to use custom avatars

Expected Results

Avatars load

Actual Results

The request to load the avatar will fail

The below exception is thrown:

org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [bamboo-default-servlet] in context with path [] threw exception
java.lang.IllegalArgumentException: The Unicode character [ž] at code point [382] cannot be encoded as it is outside the permitted range of 0 to 255.
...

Workaround

Start Bamboo with English date locale.

This can be done by adding this to <BAMBOO_INSTALL>/bin/setenv.sh

JAVA_OPTS="-Duser.language=en $JAVA_OPTS"