NullPointerException while executing a script on non secured cache located in secured container

java.security.PrivilegedActionException: java.lang.NullPointerException
	at org.infinispan.security.Security.doAs(Security.java:145)
	at org.infinispan.scripting.SecureScriptingTest.test(SecureScriptingTest.java:142)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84)
	at org.testng.internal.Invoker.invokeMethod(Invoker.java:714)
	at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
	at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
	at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
	at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
	at org.testng.TestRunner.privateRun(TestRunner.java:767)
	at org.testng.TestRunner.run(TestRunner.java:617)
	at org.testng.SuiteRunner.runTest(SuiteRunner.java:348)
	at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:343)
	at org.testng.SuiteRunner.privateRun(SuiteRunner.java:305)
	at org.testng.SuiteRunner.run(SuiteRunner.java:254)
	at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
	at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
	at org.testng.TestNG.runSuitesSequentially(TestNG.java:1224)
	at org.testng.TestNG.runSuitesLocally(TestNG.java:1149)
	at org.testng.TestNG.run(TestNG.java:1057)
	at org.testng.IDEARemoteTestNG.run(IDEARemoteTestNG.java:72)
	at org.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:122)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
Caused by: java.lang.NullPointerException
	at org.infinispan.scripting.impl.ScriptingManagerImpl.runScript(ScriptingManagerImpl.java:152)
	at org.infinispan.scripting.SecureScriptingTest$8.run(SecureScriptingTest.java:145)
	at org.infinispan.scripting.SecureScriptingTest$8.run(SecureScriptingTest.java:142)
	at org.infinispan.security.Security.doAs(Security.java:143)
	... 29 more

public void test() throws ExecutionException, InterruptedException, PrivilegedActionException {
      Security.doAs(ADMIN, new PrivilegedAction<Void>() {
         @Override
         public Void run() {
            cacheManager.defineConfiguration("nonSecuredCache", TestCacheManagerFactory.getDefaultCacheConfiguration(true).build());
            return null;
         }
      });

      cache("nonSecuredCache").put("a", "value");
      assertEquals("value", cacheManager.getCache("nonSecuredCache").get("a"));

      String result = Security.doAs(RUNNER, new PrivilegedExceptionAction<String>() {
         @Override
         public String run() throws Exception {
            return (String) scriptingManager.runScript("test.js", new TaskContext().addParameter("a", "a").cache(cache("nonSecuredCache"))).get();
         }
      });
      assertEquals("a", result);
      assertEquals("a", cacheManager.getCache("nonSecuredCache").get("a"));
   }