sun.misc.resources claims to contain a ResourceBundle for sun.misc,
which has localized versions of messages for "bad" jar files, such as:
"optpkg.versionerror", "ERROR: Invalid version format used in {0} JAR file.
Check the documentation for the supported version format."
"optpkg.attributeerror", "ERROR: The required {0} JAR manifest attribute is
not set in {1} JAR file."
"optpkg.attributeserror", "ERROR: Some required JAR manifest attributes are
not set in {0} JAR file."
These error message appear to not be used, either by the JDK itself,
or elsewhere. I assume that there was a consumer of these at one
point, but has long since been refactored away.
http://cr.openjdk.java.net/~chegar/8153118/
https://bugs.openjdk.java.net/browse/JDK-8153118
-Chris.
