Selenium Error

[jegadeesh kumar]

Hi team,

when i ran my selenium test some times randomly  test not running properly its hang some where with following Exception

org.apache.maven.surefire.util.SurefireReflectionException: java.lang.reflect.InvocationTargetException; nested exceptio
n is java.lang.reflect.InvocationTargetException: null
java.lang.reflect.InvocationTargetException
        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.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
        at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
        at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
        at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:103)
        at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:74)
Caused by: org.testng.TestNGException:
Cannot instantiate class com.broadsoft.AddSmeTest
        at org.testng.internal.ObjectFactoryImpl.newInstance(ObjectFactoryImpl.java:38)
        at org.testng.internal.ClassHelper.createInstance1(ClassHelper.java:374)
        at org.testng.internal.ClassHelper.createInstance(ClassHelper.java:286)
        at org.testng.internal.ClassImpl.getDefaultInstance(ClassImpl.java:110)
        at org.testng.internal.ClassImpl.getInstances(ClassImpl.java:195)
        at org.testng.internal.TestNGClassFinder.<init>(TestNGClassFinder.java:120)
        at org.testng.TestRunner.initMethods(TestRunner.java:405)
        at org.testng.TestRunner.init(TestRunner.java:231)
        at org.testng.TestRunner.init(TestRunner.java:201)
        at org.testng.TestRunner.<init>(TestRunner.java:150)
        at org.testng.SuiteRunner$DefaultTestRunnerFactory.newTestRunner(SuiteRunner.java:523)
        at org.testng.SuiteRunner.init(SuiteRunner.java:157)
        at org.testng.SuiteRunner.<init>(SuiteRunner.java:111)
        at org.testng.TestNG.createSuiteRunner(TestNG.java:1245)
        at org.testng.TestNG.createSuiteRunners(TestNG.java:1232)
        at org.testng.TestNG.runSuitesLocally(TestNG.java:1086)
        at org.testng.TestNG.run(TestNG.java:1007)
        at org.apache.maven.surefire.testng.TestNGExecutor.run(TestNGExecutor.java:177)
        at org.apache.maven.surefire.testng.TestNGXmlTestSuite.execute(TestNGXmlTestSuite.java:92)
        at org.apache.maven.surefire.testng.TestNGProvider.invoke(TestNGProvider.java:105)
        ... 9 more
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
        at org.testng.internal.ObjectFactoryImpl.newInstance(ObjectFactoryImpl.java:29)
        ... 28 more
Caused by: org.openqa.selenium.remote.UnreachableBrowserException: Could not start a new session. Possible causes are in
valid address of the remote server or browser start-up failure.
Build info: version: '2.20.0', revision: '16008', time: '2012-02-28 15:00:40'
System info: os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.7.0_01'
Driver info: driver.version: FirefoxDriver
        at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:435)
        at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:139)
        at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:94)
        at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:142)
        at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:84)
        at com.broadsoft.DriverProvider.<init>(DriverProvider.java:35)
        at com.broadsoft.DriverProvider.getDriver(DriverProvider.java:40)
        at com.broadsoft.AddSme.<init>(AddSme.java:23)
        at com.broadsoft.AddSmeTest.<init>(AddSmeTest.java:12)
        ... 33 more
Caused by: java.net.SocketException: Connection reset
        at java.net.SocketInputStream.read(SocketInputStream.java:189)
        at java.net.SocketInputStream.read(SocketInputStream.java:121)
        at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:149)
        at org.apache.http.impl.io.SocketInputBuffer.fillBuffer(SocketInputBuffer.java:110)
        at org.apache.http.impl.io.AbstractSessionInputBuffer.read(AbstractSessionInputBuffer.java:195)
        at org.apache.http.impl.io.ContentLengthInputStream.read(ContentLengthInputStream.java:176)
        at org.apache.http.impl.io.ContentLengthInputStream.read(ContentLengthInputStream.java:197)
        at org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:155)
        at org.apache.http.util.EntityUtils.toByteArray(EntityUtils.java:100)
        at org.openqa.selenium.remote.HttpCommandExecutor$EntityWithEncoding.<init>(HttpCommandExecutor.java:392)
        at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:287)
        at org.openqa.selenium.firefox.internal.NewProfileExtensionConnection.execute(NewProfileExtensionConnection.java
:122)
        at org.openqa.selenium.firefox.FirefoxDriver$LazyCommandExecutor.execute(FirefoxDriver.java:266)
        at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:415)
        ... 41 more
HOW CAN I SOLVE THE ISSUE?