Production Build Fails: Fatal Exception: Java.lang.NoSuchMethodError: No Non-static Method "Lcom/criticalblue/approovsdk/AttestationServicesResponse;.<init>(Ljava/lang/String;[BJII)V"

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Production Build Fails: Fatal Exception - java.lang.NoSuchMethodError

When building an Android app for production, it's not uncommon to encounter issues that don't occur during local development or testing. In this article, we'll explore a specific problem that can cause a production build to fail: a java.lang.NoSuchMethodError exception.

The issue at hand is a java.lang.NoSuchMethodError exception that occurs when the app is built for production and installed on a device. The error message indicates that there is no non-static method Lcom/criticalblue/approovsdk/AttestationServicesResponse;.<init>(Ljava/lang/String;[BJII)V available.

To better understand the issue, let's take a look at the dependencies and configuration used in the project.

build.gradle (app)

implementation(libs.approov.service.retrofit)
implementation(libs.approov.service.okhttp)

toml

[versions]
approovServiceRetrofit = "3.2.0"
approovServiceOkhttp = "3.2.0"

[libraries]
approov-service-retrofit = { group = "com.github.approov", name = "approov-service-retrofit", version.ref = "approovServiceRetrofit" }
approov-service-okhttp = { group = "com.github.approov", name = "approov-service-okhttp", version.ref = "approovServiceOkhttp" }

The crash log provides valuable information about the issue. Here's a snippet of the log:

Fatal Exception: java.lang.NoSuchMethodError: no non-static method "Lcom/criticalblue/approovsdk/AttestationServicesResponse;.<init>(Ljava/lang/String;[BJII)V"
       at com.criticalblue.approovsdk.AttestationServicesAndroid.service(SourceFile)
       at com.criticalblue.approovsdk.AttestationServicesAndroid.<init>(AttestationServicesAndroid.java:74)
       at com.criticalblue.approovsdk.f.<init>(f.java:74)
       at com.criticalblue.approovsdk.Approov.initialize(SourceFile:74)
       at io.approov.service.retrofit.ApproovService.initialize(ApproovService.java:113)
       at dk.loofers.LoofersApp.onCreate(LoofersApp.kt:23)
       at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1316)
       at android.app.ActivityThread.handleBindApplication(ActivityThread.java:7848)
       at android.app.ActivityThread.-$Nest$mhandleBindApplication()
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2486)
       at android.os.Handler.dispatchMessage(Handler.java:106)
       at android.os.Looper.loopOnce(Looper.java:230)
       at android.os.Looper.loop(Looper.java:319)
       at android.app.ActivityThread.main(ActivityThread.java:9063)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:588)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1103)

Based on the crash log and dependencies, there are a few possible causes for this issue:

  1. Version mismatch: The approov-service-retrofit and approov-service-okhttp dependencies might be using different versions of the Approov SDK, which can cause compatibility issues.
  2. Missing dependencies: The project might be missing some dependencies required by the Approov SDK, which can cause the java.lang.NoSuchMethodError exception.
  3. Incorrect configuration: The configuration of the Approov SDK might be incorrect, which can cause the issue.

To troubleshoot this issue, follow these steps:

  1. Check the dependencies: Verify that the approov-service-retrofit and approov-service-okhttp dependencies are using the same version of the Approov SDK.
  2. Add missing dependencies: Add any missing dependencies required by the Approov SDK.
  3. Review the configuration: Review the configuration of the Approov SDK to ensure it's correct.
  4. Test locally: Test the app locally to ensure the issue is not specific to the production build.
  5. Check the crash log: Check the crash log to see if there are any other errors or clues that can help identify the issue.

In conclusion, a java.lang.NoSuchMethodError exception can occur in a production build due to various reasons such as version mismatch, missing dependencies, or incorrect configuration. By following the troubleshooting steps outlined above, you can identify and resolve the issue.
Q&A: Production Build Fails - java.lang.NoSuchMethodError

A: A java.lang.NoSuchMethodError is a runtime exception that occurs when the Java Virtual Machine (JVM) cannot find a method that is referenced in the code. This can happen when there is a version mismatch between the code and the library or framework it is using.

A: A java.lang.NoSuchMethodError can be caused by several factors, including:

  • Version mismatch: When the code is compiled against a different version of a library or framework than the one it is running against.
  • Missing dependencies: When a library or framework is not included in the project, or is not included in the correct version.
  • Incorrect configuration: When the configuration of a library or framework is incorrect, or is not compatible with the code.

A: To troubleshoot a java.lang.NoSuchMethodError, follow these steps:

  1. Check the dependencies: Verify that the code is using the correct version of the library or framework.
  2. Add missing dependencies: Add any missing libraries or frameworks required by the code.
  3. Review the configuration: Review the configuration of the library or framework to ensure it is correct.
  4. Test locally: Test the code locally to ensure the issue is not specific to the production build.
  5. Check the crash log: Check the crash log to see if there are any other errors or clues that can help identify the issue.

A: To prevent a java.lang.NoSuchMethodError, follow these best practices:

  1. Use the correct version of libraries and frameworks: Ensure that the code is using the correct version of all libraries and frameworks.
  2. Include all required dependencies: Include all required libraries and frameworks in the project.
  3. Review the configuration: Review the configuration of all libraries and frameworks to ensure it is correct.
  4. Test thoroughly: Test the code thoroughly to ensure it is working as expected.

A: Some common libraries and frameworks that can cause a java.lang.NoSuchMethodError include:

  • AndroidX: AndroidX is a set of libraries and frameworks for Android development. It can cause a java.lang.NoSuchMethodError if the code is not using the correct version.
  • OkHttp: OkHttp is a library for making HTTP requests. It can cause a java.lang.NoSuchMethodError if the code is not using the correct version.
  • Retrofit: Retrofit is a library for making HTTP requests. It can cause a java.lang.NoSuchMethodError if the code is not using the correct version.

A: To resolve a java.lang.NoSuchMethodError in your Android app, follow these steps:

  1. Check the dependencies: Verify that the code is using the correct version of the library or framework.
  2. Add missing dependencies: Add any missing libraries or frameworks required by the code.
  3. Review the configuration: Review the configuration of the library or framework to ensure it is correct.
  4. Test locally: Test the code locally to ensure the issue is not specific to the production build.
  5. Check the crash log: Check the crash log to see if there are any other errors or clues that can help identify the issue.

By following these steps and best practices, you can resolve a java.lang.NoSuchMethodError in your Android app and ensure that it runs smoothly and efficiently.