appium/java-client

null pointer exception from remote DriverService class when outputstream or logfile are not passed.

vnkunta opened this issue · 15 comments

vnkunta commented

https://github.com/appium/java-client/blob/2fd8c0cadce1a97a8a73e6ede893499f3d80414b/src/main/java/io/appium/java_client/service/local/AppiumDriverLocalService.java#L92C32-L92C32

java.lang.NullPointerException
at java.base/java.io.FileOutputStream.(FileOutputStream.java:228)
at java.base/java.io.FileOutputStream.(FileOutputStream.java:187)
at org.openqa.selenium.remote.service.DriverService$Builder.getLogOutput(DriverService.java:448)
at org.openqa.selenium.remote.service.DriverService$Builder.build(DriverService.java:495)
at io.appium.java_client.service.local.AppiumDriverLocalService.buildService(AppiumDriverLocalService.java:92)
at io.appium.java_client.service.local.AppiumDriverLocalService.buildDefaultService(AppiumDriverLocalService.java:88)

vladburian1 commented

I got same error

titusfortner commented

Does Appium want process output sent to Console or Null by default?

titusfortner commented

(I'm assuming stderr?)

vnkunta commented

Appium does not pass anything by default. So it is DriverService that used to decide

titusfortner commented

So by default it is off, and only turned on if you specify a log location? How would you specify sending to console?

I created a PR above, but it would default to sending output to stderr. Should it be discarded by default?

Right now you can avoid this error by using any of these methods on an Appium service instance:

withLogOutput(System.out);

withLogOutput(System.err);

withLogOutput(ByteStreams.nullOutputStream());

withLogFile(new File(logLocation));
  • 👍2
titusfortner commented

Ok, I just updated it to get discarded. This can be overridden using either of the methods above.

  • 👍2
vnkunta commented

yes @titusfortner I had used the same i.e. withLogOutput(System.out);

madhura-75 commented

I still find this issue, Can you give solution to resolve this?

titusfortner commented

Is it still an issue with Selenium 4.12.1?

madhura-75 commented

Yes, I am still facing the same issue

titusfortner commented

@madhura-75 please provide the code, the exception, the new stack trace, and if you can turn on logging and provide the output that would be great: https://www.selenium.dev/documentation/webdriver/troubleshooting/logging/

You can also open a ticket in Selenium with this information, either way.

  • ❤️1
madhura-75 commented

@titusfortner Is it fixed in selenium 4.12.1?

madhura-75 commented

this is the issue I am facing

java.lang.NullPointerException

at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:226)

at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:184)

at org.openqa.selenium.remote.service.DriverService$Builder.getLogOutput(DriverService.java:448)

at org.openqa.selenium.remote.service.DriverService$Builder.build(DriverService.java:495)

at io.appium.java_client.service.local.AppiumDriverLocalService.buildService(AppiumDriverLocalService.java:92)

at io.appium.java_client.service.local.AppiumDriverLocalService.buildDefaultService(AppiumDriverLocalService.java:88)

at eposautomation.Appium.EPOSBaseClass.startAppiumServer(EPOSBaseClass.java:48)

at eposautomation.Appium.HomeScreenTestCase.HomeScreenValidation(HomeScreenTestCase.java:43)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:568)

at org.testng.internal.invokers.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:139)

at org.testng.internal.invokers.TestInvoker.invokeMethod(TestInvoker.java:677)

at org.testng.internal.invokers.TestInvoker.invokeTestMethod(TestInvoker.java:221)

at org.testng.internal.invokers.MethodRunner.runInSequence(MethodRunner.java:50)

at org.testng.internal.invokers.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:962)

at org.testng.internal.invokers.TestInvoker.invokeTestMethods(TestInvoker.java:194)

at org.testng.internal.invokers.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:148)

at org.testng.internal.invokers.TestMethodWorker.run(TestMethodWorker.java:128)

at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)

at org.testng.TestRunner.privateRun(TestRunner.java:806)

at org.testng.TestRunner.run(TestRunner.java:601)

at org.testng.SuiteRunner.runTest(SuiteRunner.java:433)

at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:427)

at org.testng.SuiteRunner.privateRun(SuiteRunner.java:387)

at org.testng.SuiteRunner.run(SuiteRunner.java:330)

at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)

at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:95)

at org.testng.TestNG.runSuitesSequentially(TestNG.java:1256)

at org.testng.TestNG.runSuitesLocally(TestNG.java:1176)

at org.testng.TestNG.runSuites(TestNG.java:1099)

at org.testng.TestNG.run(TestNG.java:1067)

at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:115)

at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)

at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)
madhura-75 commented

Is there any solution as of now? Till it gets merged in selenium?

titusfortner commented

We're hoping to get 4.13 out soon. You can try using the snapshot of latest, here - https://www.selenium.dev/downloads/#nightly