I am running a few classes together using Appium. The first class starts appium service fine, but second class onwards I get a nullPointerException. This is happening consistently:
[INFO ] 2022-02-17 15:59:32 framework.testWriting.NaluTestSection 98 initialize - BeforeClass from NaluTestSection
[INFO ] 2022-02-17 15:59:32 framework.testWriting.NaluTestSection 357 stopAppiumService - Appium service stopped...
[INFO ] 2022-02-17 15:59:32 framework.testWriting.NaluTestSection 324 startAppiumService - Starting Appium service.
Logs will be stored at: .\Outputs\AppiumLogs\TP397_Procedure2\appium_TP397_Procedure2_Section01.log
[ERROR] 2022-02-17 15:59:32 framework.testWriting.NaluTestSection 338 startAppiumService - Error starting Appium service...
[INFO ] 2022-02-17 15:59:32 framework.testWriting.NaluTestSection 340 startAppiumService - Retrying Appium service start
[ERROR] 2022-02-17 15:59:32 framework.testWriting.NaluTestSection 345 startAppiumService - Error starting Appium service...: full stack trace follows:
java.lang.NullPointerException: null
at framework.testWriting.NaluTestSection.startAppiumService(NaluTestSection.java:342) ~[test-classes/:?]
at framework.testWriting.NaluTestSection.initialize(NaluTestSection.java:104) ~[test-classes/:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_261]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_261]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_261]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_261]
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:133) ~[org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:62) ~[org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.internal.ConfigInvoker.invokeConfigurationMethod(ConfigInvoker.java:385) ~[org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.internal.ConfigInvoker.invokeConfigurations(ConfigInvoker.java:321) ~[org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.internal.TestMethodWorker.invokeBeforeClassMethods(TestMethodWorker.java:176) ~[org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:122) ~[org.testng_7.4.0.r202105021533.jar:7.4.0]
at java.util.ArrayList.forEach(Unknown Source) [?:1.8.0_261]
at org.testng.TestRunner.privateRun(TestRunner.java:794) [org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.TestRunner.run(TestRunner.java:596) [org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.SuiteRunner.runTest(SuiteRunner.java:377) [org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:371) [org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:332) [org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.SuiteRunner.run(SuiteRunner.java:276) [org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53) [org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96) [org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1212) [org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.TestNG.runSuitesLocally(TestNG.java:1134) [org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.TestNG.runSuites(TestNG.java:1063) [org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.TestNG.run(TestNG.java:1031) [org.testng_7.4.0.r202105021533.jar:7.4.0]
at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:115) [testng-remote.jar:?]
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251) [testng-remote.jar:?]
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77) [testng-remote.jar:?]
[INFO ] 2022-02-17 15:59:32 framework.testWriting.NaluTestSection 129 initialize - Starting Appium driver...
[INFO ] 2022-02-17 15:59:34 framework.testWriting.NaluTestSection 140 initialize - Retrying Appium driver start...
[ERROR] 2022-02-17 15:59:36 framework.testWriting.NaluTestSection 143 initialize - Error starting Appium driver...org.openqa.selenium.WebDriverException: Connection refused: connect
Build info: version: '3.141.59', revision: 'e82be7d358', time: '2018-11-14T08:17:03'
System info: host: 'NALU-PF2JMR3R', ip: '192.168.100.126', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_261'
Driver info: driver.version: AppiumDriver
[INFO ] 2022-02-17 15:59:36 framework.testWriting.NaluTestSection 166 setUpTest - BeforeMethod from NaluTestSection
[INFO ] 2022-02-17 15:59:36 framework.testWriting.NaluTestSection 215 setUpTest - Testname in NaluTestSection is: TP397_060
[INFO ] 2022-02-17 15:59:36 framework.testWriting.NaluTestSection 219 setUpTest - Relaunching app due to setup incomplete or driver==null...
[INFO ] 2022-02-17 15:59:36 framework.commonUtilities.ExtentReports.ExtentListener 194 beforeInvocation - Test started - from extent reports
[INFO ] 2022-02-17 15:59:36 framework.commonUtilities.ExtentReports.ExtentListener 201 beforeInvocation - TestName in extentListener is: TP397_060
[INFO ] 2022-02-17 15:59:36 framework.Listeners.ExecutionListener 145 beforeInvocation - BeforeInvocation: TP397_060
[INFO ] 2022-02-17 15:59:36 framework.Listeners.ExecutionListener 150 beforeInvocation -
My code is as follows:
@Parameters({"deviceName","platformVersion", "portNumber"})
@BeforeClass
public void initialize( String deviceName, String platformVersion, String portNumber) throws MalformedURLException, WebDriverException{
try {
log.info("BeforeClass from NaluTestSection");
//Start Appium Service
if(checkIfServiceIsRunning(Integer.parseInt(portNumber)))
stopAppiumService();
try {
startAppiumService(portNumber, this.getClass().getSimpleName());
} catch (Exception e) {
e.printStackTrace();
}
//Set Appium driver capabilities
loadPropFile = new LoadPropertiesFile(System.getProperty("user.dir") + "\\framework.properties");
loadPropFile.loadPropertiesFile();
caps = new DesiredCapabilities();
caps.setCapability("platformName", loadPropFile.getProperty("appium.platformName"));
caps.setCapability("newCommandTimeout", loadPropFile.getProperty("appium.newCommandTimeout"));
caps.setCapability("resetKeyboard", loadPropFile.getProperty("appium.resetKeyboard"));
caps.setCapability("autoGrantPermissions", loadPropFile.getProperty("appium.autoGrantPermissions"));
caps.setCapability("disableAndroidWatchers", true);
caps.setCapability("skipUnlock", true);
caps.setCapability(MobileCapabilityType.PLATFORM_VERSION, platformVersion);
caps.setCapability(MobileCapabilityType.UDID, deviceName);
caps.setCapability(AndroidMobileCapabilityType.APP_PACKAGE, loadPropFile.getProperty("appium.appPackage"));
caps.setCapability(MobileCapabilityType.AUTOMATION_NAME, loadPropFile.getProperty("appium.automationName"));
caps.setCapability(AndroidMobileCapabilityType.APP_ACTIVITY, loadPropFile.getProperty("appium.appActivity"));
caps.setCapability(MobileCapabilityType.NO_RESET, loadPropFile.getProperty("appium.dontStopAppOnReset"));
caps.setCapability("waitForIdleTimeout", 500);
caps.setCapability("waitForSelectorTimeout", 500);
log.info("Starting Appium driver...");
//Start Appium driver
driver = new AppiumDriver<MobileElement>(new URL("http://127.0.0.1:" + portNumber + "/wd/hub"), caps);
log.info("Appium driver started...");
cpApp = new ClinicianProgrammer();
tablet = new TabletIO();
} catch (WebDriverException e) {
try {
log.info("Retrying Appium driver start...");
driver = new AppiumDriver<MobileElement>(new URL("http://127.0.0.1:" + portNumber + "/wd/hub"), caps);
}catch(WebDriverException we) {
log.error("Error starting Appium driver..." + we);
we.printStackTrace();
throw new WebDriverException();
}
} catch (MalformedURLException e) {
log.error("Error starting Appium driver..." + e.getMessage());
log.error("Error starting Appium service...: full stack trace follows:", e);
e.printStackTrace();
throw new MalformedURLException();
}
}
public void startAppiumService(String portNumber, String className) throws Exception {
log.info("Starting Appium service. \n Logs will be stored at: " + appium_logfile_folder + "\\appium_"+ className + ".log");
File appium_logfile = new File(appium_logfile_folder + "\\appium_"+ className + ".log");
try {
AppiumServiceBuilder builder = new AppiumServiceBuilder();
builder.withIPAddress("127.0.0.1");
builder.usingPort(Integer.parseInt(portNumber));
builder.withLogFile(appium_logfile);
//builder.withArgument(GeneralServerFlag.LOG_LEVEL, LogLevel.ERR.toString());
service = AppiumDriverLocalService.buildService(builder);
service.start();
service.clearOutPutStreams();
log.info("Service has been started with port number " + portNumber);
}catch(Exception e) {
log.error("Error starting Appium service...");
try {
log.info("Retrying Appium service start");
//
service.start();
service.clearOutPutStreams();
}catch(Exception ae) {
log.error("Error starting Appium service...: full stack trace follows:", ae);
throw new Exception();
}
}
}
public void stopAppiumService() {
Runtime runtime = Runtime.getRuntime();
try {
runtime.exec("taskkill /F /IM node.exe");
runtime.exec("taskkill /F /IM cmd.exe");
log.info("Appium service stopped...");
} catch (IOException e) {
log.error("Could not stop Appium service...");
e.printStackTrace();
}
}
public static boolean checkIfServiceIsRunning(int port) {
boolean isServerRunning = false;
ServerSocket serverSocket;
try {
serverSocket = new ServerSocket(port);
serverSocket.close();
}catch(IOException e) {
//If control comes here, then it means that the port is in use
isServerRunning = true;
}finally {
serverSocket = null;
}
if(isServerRunning)
System.out.println("Appium service is already running on port: " + port);
return isServerRunning;
}
My pom.xml has the following:
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<selenium-version>3.141.59</selenium-version>
<testng-version>7.5</testng-version>
<appium-version>6.1.0</appium-version>
<log4j-version>2.17.0</log4j-version>
<extentreports-version>5.0.9</extentreports-version>
<maven-surefire-plugin-version>3.0.0-M5</maven-surefire-plugin-version>
<maven-jar-plugin-version>3.2.2</maven-jar-plugin-version>
</properties>
<dependencies>
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>${selenium-version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/io.appium/java-client -->
<dependency>
<groupId>io.appium</groupId>
<artifactId>java-client</artifactId>
<version>${appium-version}</version>
</dependency>
Could someone please help with the issue? Thank you!