HDFS-15208. Suppress bogus AbstractWadlGeneratorGrammarGenerator in KMS stderr in hdfs.

Contributed by Wei-Chiu Chuang.

Change-Id: I7abeaf4b65e2a4758356aa69ab8930f7e993077d

hadoop-hdfs-project/hadoop-hdfs/src/test/resources/log4j.properties

@@ -71,3 +71,6 @@ log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
 log4j.appender.FILE.layout.ConversionPattern=%d{ISO8601} [%t] %-5p \
   (%F:%L) %X{function} %X{resource} %X{user} %X{request} - \
   %m%n
+
+# Supress KMS error log
+log4j.logger.com.sun.jersey.server.wadl.generators.WadlGeneratorJAXBGrammarGenerator=OFF