HttpServer sleeps with negative values

java.io.IOException: Problem starting http server
	at org.apache.hadoop.http.HttpServer.start(HttpServer.java:521)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.startHttpServer(NameNode.java:369)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.activate(NameNode.java:315)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:306)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:412)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:406)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1235)
	at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:287)
	at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:131)
	at org.apache.hadoop.hdfs.TestSmallBlock.testSmallBlock(TestSmallBlock.java:98)
	at org.apache.hadoop.hdfs.TestSmallBlock.testSmallBlockSimulatedStorage(TestSmallBlock.java:112)
Caused by: java.lang.IllegalArgumentException: timeout value is negative
	at java.lang.Thread.sleep(Native Method)
	at org.apache.hadoop.http.HttpServer.start(HttpServer.java:484)