TimeoutException during test that extends GWTTestCase class

Question

I have test class that extends GWTTestCase.class.

When I am trying to debug my test - I can't even go through first line at my test class, because my class extends GWTTestCase and during test time some proccess inside it throws next exception:

[ERROR] 503 - GET /com.energyict.ems.portal.Portal.JUnit/junit.html (127.0.0.1) 336 bytes

com.google.gwt.junit.client.TimeoutException: The browser did not contact the server within 60000ms.
 - 1 client(s) haven't responded back to JUnitShell since the start of the test.
 Actual time elapsed: 60.236 seconds.
Try increasing this timeout using the '-testBeginTimeout minutes' option
The default value of minutes is 1, i.e., the server waits 1 minute or 60 seconds.


        at com.google.gwt.junit.JUnitShell.notDone(JUnitShell.java:1039)
        at com.google.gwt.junit.JUnitShell.runTestImpl(JUnitShell.java:1363)
        at com.google.gwt.junit.JUnitShell.runTestImpl(JUnitShell.java:1283)
        at com.google.gwt.junit.JUnitShell.runTest(JUnitShell.java:672)
        at com.google.gwt.junit.client.GWTTestCase.runTest(GWTTestCase.java:421)
        at junit.framework.TestCase.runBare(TestCase.java:134)
        at junit.framework.TestResult$1.protect(TestResult.java:110)
        at junit.framework.TestResult.runProtected(TestResult.java:128)
        at junit.framework.TestResult.run(TestResult.java:113)
        at junit.framework.TestCase.run(TestCase.java:124)
        at com.google.gwt.junit.client.GWTTestCase.run(GWTTestCase.java:247)
        at junit.framework.TestSuite.runTest(TestSuite.java:232)
        at junit.framework.TestSuite.run(TestSuite.java:227)
        at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
        at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
        at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
        at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
        at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:237)
        at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
        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:498)
        at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)

    Java HotSpot(TM) 64-Bit Server VM warning: ignoring option UseSplitVerifier; support was removed in 8.0

    Process finished with exit code -1

Can anyone please give a suggetsion about it ?

I am using <artifactId>maven-surefire-plugin</artifactId> version 2.20