java - TestNG report with customized error in place of stack trace, when my script fails

Question

I am using Testng and selenium, if my script is fail then it shows the total stack trace in report but i need only custom message to know the error.

Error is comming like this:

 FAILED: abc
java.lang.AssertionError: url:http//:abc.com
at org.testng.Assert.fail(Assert.java:94)
at com.ebates.qa.dotcom.test.MerchantImages.storeSmallIconImageVerification(MerchantImages.java:63)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
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:334)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291)
at org.testng.SuiteRunner.run(SuiteRunner.java:240)
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.remote.RemoteTestNG.run(RemoteTestNG.java:111)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:204)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:175)


===============================================
Default test
Tests run: 1, Failures: 1, Skips: 0
===============================================


===============================================
Default suite
Total tests run: 1, Failures: 1, Skips: 0
===============================================

but actually i don't want to this stacktrace i need a custom message in place of stacktrace..

Answer 1

You could add custom TestListener to your code like:

public class TestListener extends TestListenerAdapter {

    @Override
    public void onTestFailure(ITestResult tr) {
        Throwable th = tr.getThrowable();
        if (th != null) {
            System.out.println(th.getMessage());
            tr.setThrowable(null);
        }
    }
}

and add listener to test case class:

@Listeners({TestListener.class})
public class myTest() {
    . . . // tests
}