Description: German characters (ö,ä,ü) don't work in MDM UI if the display names are changed via CustomSharedStringResources.properties.
Resolution
Non-ASCII characters needs to be converted into the format of UASCII in CustomSharedStringResources.properties. For example, ö should be represented as \u00f6 in CustomSharedStringResources.properties:
Java bundles a command line tool named native2ascii to convert native to UASCII. native2ascii -encoding UTF-8 CustomSharedStringResources.properties CustomSharedStringResources_de.properties