protected static void setTestRunner(Class testRunnerClass) {
    SecureTestCluster.testRunnerClass = testRunnerClass;
  }
SecureTestCluster extending classes can set their own <code>Class</code> reference type to be
used as the target resource to be looked for on the class loader by
<code>KeyStoreTestUtil</code>, when deciding where to place ssl related config files.
@param testRunnerClass a <code>Class</code> reference from the <code>SecureTestCluster</code>
                       extender.
hbase-server/src/test/java/org/apache/hadoop/hbase/security/token/SecureTestCluster.java