bug: get java.lang.NullPointerException when start appium programmatically

[fatahillahardhi]

Do I have the most recent component updates?

• I use the most recent available driver/plugin and server versions

Is the component officially supported by the Appium team?

• I have verified the component repository is present under the Appium organization in GitHub

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

I tried to run Appium programmatically and always failed because java.lang.NullPointerException

Expected Behavior

can run normally because when I used Appium 1.22.3 it can run as well

Minimal Reproducible Example

Environment

• Operating system: MacOS Ventura 13.0
• Appium server version (output of appium --version): 2.1.3
• Appium driver(s) and their version(s): XCUITest 4.35.0
• Appium plugin(s) and their version(s):
• Node.js version (output of node --version): v18.17.1
• npm version (output of npm --version): 9.8.1
• Last component(s) version which did not exhibit the problem:
• Platform and version under test: iOS 16.0
• Real device or emulator/simulator: Simulator
• appium java-client: 8.5.1
• testng: 7.7.1

Link to Appium Logs

https://gist.github.com/fatahillahardhi/7f2023cabb07f2425342dec1eb7b1a47

Further Information

/Users/fatahillahardhi/Library/Java/JavaVirtualMachines/azul-17.0.8/Contents/Home/bin/java -ea -Didea.test.cyclic.buffer.size=1048576 -javaagent:/Applications/Aqua 2023.2 EAP.app/Contents/lib/idea_rt.jar=50804:/Applications/Aqua 2023.2 EAP.app/Contents/bin -Dfile.encoding=UTF-8 -classpath /Applications/Aqua 2023.2 EAP.app/Contents/lib/idea_rt.jar:/Applications/Aqua 2023.2 EAP.app/Contents/plugins/testng/lib/testng-rt.jar:/Users/fatahillahardhi/Desktop/Automation/AppiumJavaSample/target/test-classes:/Users/fatahillahardhi/.m2/repository/io/appium/java-client/8.5.1/java-client-8.5.1.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-api/4.12.1/selenium-api-4.12.1.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-remote-driver/4.12.1/selenium-remote-driver-4.12.1.jar:/Users/fatahillahardhi/.m2/repository/com/google/auto/service/auto-service-annotations/1.1.1/auto-service-annotations-1.1.1.jar:/Users/fatahillahardhi/.m2/repository/com/google/guava/guava/32.1.2-jre/guava-32.1.2-jre.jar:/Users/fatahillahardhi/.m2/repository/com/google/guava/failureaccess/1.0.1/failureaccess-1.0.1.jar:/Users/fatahillahardhi/.m2/repository/com/google/guava/listenablefuture/9999.0-empty-to-avoid-conflict-with-guava/listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar:/Users/fatahillahardhi/.m2/repository/com/google/code/findbugs/jsr305/3.0.2/jsr305-3.0.2.jar:/Users/fatahillahardhi/.m2/repository/org/checkerframework/checker-qual/3.33.0/checker-qual-3.33.0.jar:/Users/fatahillahardhi/.m2/repository/com/google/errorprone/error_prone_annotations/2.18.0/error_prone_annotations-2.18.0.jar:/Users/fatahillahardhi/.m2/repository/com/google/j2objc/j2objc-annotations/2.8/j2objc-annotations-2.8.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-buffer/4.1.96.Final/netty-buffer-4.1.96.Final.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-codec-http/4.1.96.Final/netty-codec-http-4.1.96.Final.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-codec/4.1.96.Final/netty-codec-4.1.96.Final.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-handler/4.1.96.Final/netty-handler-4.1.96.Final.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-common/4.1.96.Final/netty-common-4.1.96.Final.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-transport-classes-epoll/4.1.96.Final/netty-transport-classes-epoll-4.1.96.Final.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-transport-classes-kqueue/4.1.96.Final/netty-transport-classes-kqueue-4.1.96.Final.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-transport-native-epoll/4.1.96.Final/netty-transport-native-epoll-4.1.96.Final.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-transport-native-kqueue/4.1.96.Final/netty-transport-native-kqueue-4.1.96.Final.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-transport-native-unix-common/4.1.96.Final/netty-transport-native-unix-common-4.1.96.Final.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-transport/4.1.96.Final/netty-transport-4.1.96.Final.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-resolver/4.1.96.Final/netty-resolver-4.1.96.Final.jar:/Users/fatahillahardhi/.m2/repository/io/opentelemetry/opentelemetry-api/1.28.0/opentelemetry-api-1.28.0.jar:/Users/fatahillahardhi/.m2/repository/io/opentelemetry/opentelemetry-context/1.28.0/opentelemetry-context-1.28.0.jar:/Users/fatahillahardhi/.m2/repository/io/opentelemetry/opentelemetry-exporter-logging/1.28.0/opentelemetry-exporter-logging-1.28.0.jar:/Users/fatahillahardhi/.m2/repository/io/opentelemetry/opentelemetry-sdk-metrics/1.28.0/opentelemetry-sdk-metrics-1.28.0.jar:/Users/fatahillahardhi/.m2/repository/io/opentelemetry/opentelemetry-extension-incubator/1.28.0-alpha/opentelemetry-extension-incubator-1.28.0-alpha.jar:/Users/fatahillahardhi/.m2/repository/io/opentelemetry/opentelemetry-sdk-logs/1.28.0/opentelemetry-sdk-logs-1.28.0.jar:/Users/fatahillahardhi/.m2/repository/io/opentelemetry/opentelemetry-sdk-common/1.28.0/opentelemetry-sdk-common-1.28.0.jar:/Users/fatahillahardhi/.m2/repository/io/opentelemetry/opentelemetry-sdk-extension-autoconfigure-spi/1.28.0/opentelemetry-sdk-extension-autoconfigure-spi-1.28.0.jar:/Users/fatahillahardhi/.m2/repository/io/opentelemetry/opentelemetry-sdk-extension-autoconfigure/1.28.0/opentelemetry-sdk-extension-autoconfigure-1.28.0.jar:/Users/fatahillahardhi/.m2/repository/io/opentelemetry/opentelemetry-api-events/1.28.0-alpha/opentelemetry-api-events-1.28.0-alpha.jar:/Users/fatahillahardhi/.m2/repository/io/opentelemetry/opentelemetry-sdk-trace/1.28.0/opentelemetry-sdk-trace-1.28.0.jar:/Users/fatahillahardhi/.m2/repository/io/opentelemetry/opentelemetry-sdk/1.28.0/opentelemetry-sdk-1.28.0.jar:/Users/fatahillahardhi/.m2/repository/io/opentelemetry/opentelemetry-semconv/1.28.0-alpha/opentelemetry-semconv-1.28.0-alpha.jar:/Users/fatahillahardhi/.m2/repository/net/bytebuddy/byte-buddy/1.14.5/byte-buddy-1.14.5.jar:/Users/fatahillahardhi/.m2/repository/org/asynchttpclient/async-http-client/2.12.3/async-http-client-2.12.3.jar:/Users/fatahillahardhi/.m2/repository/org/asynchttpclient/async-http-client-netty-utils/2.12.3/async-http-client-netty-utils-2.12.3.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-codec-socks/4.1.60.Final/netty-codec-socks-4.1.60.Final.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-handler-proxy/4.1.60.Final/netty-handler-proxy-4.1.60.Final.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-transport-native-epoll/4.1.60.Final/netty-transport-native-epoll-4.1.60.Final-linux-x86_64.jar:/Users/fatahillahardhi/.m2/repository/io/netty/netty-transport-native-kqueue/4.1.60.Final/netty-transport-native-kqueue-4.1.60.Final-osx-x86_64.jar:/Users/fatahillahardhi/.m2/repository/org/reactivestreams/reactive-streams/1.0.3/reactive-streams-1.0.3.jar:/Users/fatahillahardhi/.m2/repository/com/typesafe/netty/netty-reactive-streams/2.0.4/netty-reactive-streams-2.0.4.jar:/Users/fatahillahardhi/.m2/repository/com/sun/activation/jakarta.activation/1.2.2/jakarta.activation-1.2.2.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-http/4.12.1/selenium-http-4.12.1.jar:/Users/fatahillahardhi/.m2/repository/dev/failsafe/failsafe/3.3.2/failsafe-3.3.2.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-json/4.12.1/selenium-json-4.12.1.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-manager/4.12.1/selenium-manager-4.12.1.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-os/4.12.1/selenium-os-4.12.1.jar:/Users/fatahillahardhi/.m2/repository/org/apache/commons/commons-exec/1.3/commons-exec-1.3.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-support/4.12.1/selenium-support-4.12.1.jar:/Users/fatahillahardhi/.m2/repository/com/google/code/gson/gson/2.10.1/gson-2.10.1.jar:/Users/fatahillahardhi/.m2/repository/commons-validator/commons-validator/1.7/commons-validator-1.7.jar:/Users/fatahillahardhi/.m2/repository/commons-beanutils/commons-beanutils/1.9.4/commons-beanutils-1.9.4.jar:/Users/fatahillahardhi/.m2/repository/commons-digester/commons-digester/2.1/commons-digester-2.1.jar:/Users/fatahillahardhi/.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar:/Users/fatahillahardhi/.m2/repository/commons-collections/commons-collections/3.2.2/commons-collections-3.2.2.jar:/Users/fatahillahardhi/.m2/repository/org/apache/commons/commons-lang3/3.12.0/commons-lang3-3.12.0.jar:/Users/fatahillahardhi/.m2/repository/commons-io/commons-io/2.12.0/commons-io-2.12.0.jar:/Users/fatahillahardhi/.m2/repository/org/slf4j/slf4j-api/2.0.7/slf4j-api-2.0.7.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-java/4.9.1/selenium-java-4.9.1.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-chrome-driver/4.9.1/selenium-chrome-driver-4.9.1.jar:/Users/fatahillahardhi/.m2/repository/com/google/auto/service/auto-service/1.0.1/auto-service-1.0.1.jar:/Users/fatahillahardhi/.m2/repository/com/google/auto/auto-common/1.2/auto-common-1.2.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-chromium-driver/4.9.1/selenium-chromium-driver-4.9.1.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-devtools-v111/4.9.1/selenium-devtools-v111-4.9.1.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-devtools-v112/4.9.1/selenium-devtools-v112-4.9.1.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-devtools-v113/4.9.1/selenium-devtools-v113-4.9.1.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-devtools-v85/4.9.1/selenium-devtools-v85-4.9.1.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-edge-driver/4.9.1/selenium-edge-driver-4.9.1.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-firefox-driver/4.9.1/selenium-firefox-driver-4.9.1.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-ie-driver/4.9.1/selenium-ie-driver-4.9.1.jar:/Users/fatahillahardhi/.m2/repository/org/seleniumhq/selenium/selenium-safari-driver/4.9.1/selenium-safari-driver-4.9.1.jar:/Users/fatahillahardhi/.m2/repository/org/testng/testng/7.7.1/testng-7.7.1.jar:/Users/fatahillahardhi/.m2/repository/com/beust/jcommander/1.82/jcommander-1.82.jar:/Users/fatahillahardhi/.m2/repository/org/webjars/jquery/3.6.1/jquery-3.6.1.jar:/Users/fatahillahardhi/.m2/repository/io/github/bonigarcia/webdrivermanager/5.3.2/webdrivermanager-5.3.2.jar:/Users/fatahillahardhi/.m2/repository/com/github/docker-java/docker-java/3.2.14/docker-java-3.2.14.jar:/Users/fatahillahardhi/.m2/repository/com/github/docker-java/docker-java-core/3.2.14/docker-java-core-3.2.14.jar:/Users/fatahillahardhi/.m2/repository/com/github/docker-java/docker-java-api/3.2.14/docker-java-api-3.2.14.jar:/Users/fatahillahardhi/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.10.3/jackson-annotations-2.10.3.jar:/Users/fatahillahardhi/.m2/repository/org/apache/commons/commons-compress/1.21/commons-compress-1.21.jar:/Users/fatahillahardhi/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.10.3/jackson-databind-2.10.3.jar:/Users/fatahillahardhi/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.10.3/jackson-core-2.10.3.jar:/Users/fatahillahardhi/.m2/repository/org/bouncycastle/bcpkix-jdk15on/1.64/bcpkix-jdk15on-1.64.jar:/Users/fatahillahardhi/.m2/repository/org/bouncycastle/bcprov-jdk15on/1.64/bcprov-jdk15on-1.64.jar:/Users/fatahillahardhi/.m2/repository/org/slf4j/jcl-over-slf4j/1.7.30/jcl-over-slf4j-1.7.30.jar:/Users/fatahillahardhi/.m2/repository/com/github/docker-java/docker-java-transport-httpclient5/3.2.14/docker-java-transport-httpclient5-3.2.14.jar:/Users/fatahillahardhi/.m2/repository/com/github/docker-java/docker-java-transport/3.2.14/docker-java-transport-3.2.14.jar:/Users/fatahillahardhi/.m2/repository/net/java/dev/jna/jna/5.12.1/jna-5.12.1.jar:/Users/fatahillahardhi/.m2/repository/org/brotli/dec/0.1.2/dec-0.1.2.jar:/Users/fatahillahardhi/.m2/repository/org/apache/httpcomponents/client5/httpclient5/5.2.1/httpclient5-5.2.1.jar:/Users/fatahillahardhi/.m2/repository/org/apache/httpcomponents/core5/httpcore5/5.2/httpcore5-5.2.jar:/Users/fatahillahardhi/.m2/repository/org/apache/httpcomponents/core5/httpcore5-h2/5.2/httpcore5-h2-5.2.jar com.intellij.rt.testng.RemoteTestNGStarter -usedefaultlisteners false -socket50803 @w@/private/var/folders/jj/56gfzdnx3ndd258xtjxrzr4c0000gp/T/idea_working_dirs_testng.tmp -temp /private/var/folders/jj/56gfzdnx3ndd258xtjxrzr4c0000gp/T/idea_testng.tmp
SLF4J: No SLF4J providers were found.
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See https://www.slf4j.org/codes.html#noProviders for further details.
Start local Appium server

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 com.eot.sample.Hooks.startAppiumServer(Hooks.java:20)
	at com.eot.sample.ios.AppiumNativeiOSHelloWorldTest.beforeAll(AppiumNativeiOSHelloWorldTest.java:23)
	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.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:69)
	at org.testng.internal.invokers.ConfigInvoker.invokeConfigurationMethod(ConfigInvoker.java:361)
	at org.testng.internal.invokers.ConfigInvoker.invokeConfigurations(ConfigInvoker.java:296)
	at org.testng.SuiteRunner.privateRun(SuiteRunner.java:376)
	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 com.intellij.rt.testng.IDEARemoteTestNG.run(IDEARemoteTestNG.java:66)
	at com.intellij.rt.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:105)


Test ignored.

===============================================
Default Suite
Total tests run: 1, Passes: 0, Failures: 0, Skips: 1
Configuration Failures: 1, Skips: 3
===============================================


Process finished with exit code 0

here's my code

public static void startAppiumServer() {
        System.out.println(String.format("Start local Appium server"));
        new AppiumServiceBuilder()
                .usingAnyFreePort()
                .usingDriverExecutable(new File("/usr/local/bin/node"))
                .withArgument(GeneralServerFlag.RELAXED_SECURITY)
                .build()
                .start();
}

[qubui]

I got the same issue with Android, is there any solution? please help me

[ashwithpoojary98]

@fatahillahardhi and @qubui add a log file in the Appium service builder it will resolve
new AppiumServiceBuilder()
.usingAnyFreePort()
.usingDriverExecutable(new File("/usr/local/bin/node"))
.withLogFile(new File(System.getProperty("user.dir")+"appium.log"))
.withArgument(GeneralServerFlag.RELAXED_SECURITY)
.build()
.start();

The below code will resolve the issue
.withLogFile(new File(System.getProperty("user.dir")+"appium.log"))

[qubui]

Thanks a lot @ashwithpoojary98, you are my life saver :).

[qubui]

I need one more help that how to run test with real device for android and on browserStack, @ashwithpoojary98 do you have any hint?

[ashwithpoojary98]

@qubui,
For Android, you can connect your real device and enable the developer option on your phone. Then, you can start executing the test cases. However, for iOS, you need extra configuration to run the test cases on real devices. BrowserStack is similar to local execution, but you need to change the URL and add an app, username, and passkey to the capabilities.

[qubui]

@ashwithpoojary98 Do you have a code for these?

[manikantp]

.withLogFile(new File(System.getProperty("user.dir")+"appium.log"))

What does this line exactly do @ashwithpoojary98 This line fixed the problem somehow

[ashwithpoojary98]

@manikantp issue with the Selenium Build log file, and it was recently fixed. Before, it was checking for the file in a default location that does not exist.

[manikantp]

@manikantp issue with the Selenium Build log file, and it was recently fixed. Before, it was checking for the file in a default location that does not exist.

Oh that's why I thought why is the code behaving like this 😅. Thanks by the way 👍. This helped a lot

[valfirst]

Duplicate of #2004