Checking errors and handling exceptions in JNI

JNI functions can fail because of system constraint (for example, lack of memory) or invalid arguments (for example, passing a native UTF-8 string when the function is expecting a UTF-16 string). This recipe discusses how to handle errors and exceptions in JNI programming.

Getting ready

The following recipes should be read first before proceeding with this recipe:

  • Manipulating strings in JNI
  • Managing references in JNI
  • Accessing Java static and instance fields in native code
  • Calling static and instance methods from native code

How to do it…

Follow these steps to create a sample Android project that illustrates errors and exception handling in JNI:

  1. Create a project named ExceptionHandling. Set the package ...

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