NPE when trying to execute script from Hot Rod client

String SCRIPT_CACHE = "___script_cache";
RemoteCacheManager remoteCacheManager = ...

RemoteCache<String, String> scriptCache = remoteCacheManager.getCache(SCRIPT_CACHE);

scriptCache.put("wordCountMapper.js", ...);

14:34:21,473 ERROR [org.infinispan.interceptors.InvocationContextInterceptor] (HotRodServerWorker-8-1) ISPN000136: Execution error: java.lang.NullPointerException
	at org.infinispan.interceptors.compat.BaseTypeConverterInterceptor.visitPutKeyValueCommand(BaseTypeConverterInterceptor.java:85)
	at org.infinispan.commands.write.PutKeyValueCommand.acceptVisitor(PutKeyValueCommand.java:72)
	at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:99)
	at org.infinispan.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:102)