有人知道如何处理来自 native 方法调用的异常吗？
我正在运行 Barcode Reader example from Google Vision API ，它在读取一些 2d - pdf417 代码时效果很好，但在某些情况下，它会因尝试使用 NewStringUTF 这样的 native 异常而崩溃:
art/runtime/java_vm_ext.cc:410] JNI DETECTED ERROR IN APPLICATION: input is not valid Modified UTF-8: illegal start byte 0x90
art/runtime/java_vm_ext.cc:410] in call to NewStringUTF
art/runtime/java_vm_ext.cc:410] from com.google.android.gms.vision.barcode.internal.NativeBarcode[] com.google.android.gms.vision.barcode.internal.NativeBarcodeDetector.recognizeNative(int, int, byte[], com.google.android.gms.vision.barcode.internal.NativeOptions)
art/runtime/java_vm_ext.cc:410] "Thread-4533" prio=5 tid=19 Runnable
art/runtime/java_vm_ext.cc:410] | group="main" sCount=0 dsCount=0 obj=0x12c8e0a0 self=0x7f849f4200
art/runtime/java_vm_ext.cc:410] | sysTid=9051 nice=0 cgrp=default sched=0/0 handle=0x7f7b7bf440
art/runtime/java_vm_ext.cc:410] | state=R schedstat=( 1663092757 5060164 94 ) utm=165 stm=1 core=2 HZ=100
art/runtime/java_vm_ext.cc:410] | stack=0x7f7b6bd000-0x7f7b6bf000 stackSize=1037KB
art/runtime/java_vm_ext.cc:410] | held mutexes= "mutator lock"(shared held)
art/runtime/java_vm_ext.cc:410] native: #00 pc 00000000004897a8 /system/lib64/libart.so (_ZN3art15DumpNativeStackERNSt3__113basic_ostreamIcNS0_11char_traitsIcEEEEiP12BacktraceMapPKcPNS_9ArtMethodEPv+200)
art/runtime/java_vm_ext.cc:410] native: #01 pc 0000000000458644 /system/lib64/libart.so (_ZNK3art6Thread4DumpERNSt3__113basic_ostreamIcNS1_11char_traitsIcEEEEP12BacktraceMap+224)
art/runtime/java_vm_ext.cc:410] native: #02 pc 000000000030c9e4 /system/lib64/libart.so (_ZN3art9JavaVMExt8JniAbortEPKcS2_+1004)
art/runtime/java_vm_ext.cc:410] native: #03 pc 000000000030d29c /system/lib64/libart.so (_ZN3art9JavaVMExt9JniAbortVEPKcS2_St9__va_list+116)
art/runtime/java_vm_ext.cc:410] native: #04 pc 0000000000141f9c /system/lib64/libart.so (_ZN3art11ScopedCheck6AbortFEPKcz+144)
art/runtime/java_vm_ext.cc:410] native: #05 pc 000000000014a1d0 /system/lib64/libart.so (_ZN3art11ScopedCheck5CheckERNS_18ScopedObjectAccessEbPKcPNS_12JniValueTypeE.constprop.116+11084)
art/runtime/java_vm_ext.cc:410] native: #06 pc 0000000000153418 /system/lib64/libart.so (_ZN3art8CheckJNI12NewStringUTFEP7_JNIEnvPKc+468)
art/runtime/java_vm_ext.cc:410] native: #07 pc 0000000000005774 /data/data/com.google.android.gms/files/com.google.android.gms.vision/barcode/libs/arm64-v8a/libbarhopper.so (_ZN9barhopper9JniObject14SetStringFieldEPKcRKNSt3__112basic_stringIcNS3_11char_traitsIcEENS3_9allocatorIcEEEE+168)
art/runtime/java_vm_ext.cc:410] native: #08 pc 00000000000036f8 /data/data/com.google.android.gms/files/com.google.android.gms.vision/barcode/libs/arm64-v8a/libbarhopper.so (???)
art/runtime/java_vm_ext.cc:410] native: #09 pc 0000000000004c8c /data/data/com.google.android.gms/files/com.google.android.gms.vision/barcode/libs/arm64-v8a/libbarhopper.so (Java_com_google_android_gms_vision_barcode_internal_NativeBarcodeDetector_recognizeNative+84)
我想处理崩溃以便捕获它并向用户提供一些反馈。
最佳答案
不幸的是，没有办法处理来自非您自己的 native 代码的异常。
我在使用 google-vision 时遇到了类似的问题。我把这个问题报告给了 google vision github https://github.com/googlesamples/android-vision
遗憾的是这个库有一些错误。就我而言，这是条形码文本解析器中的错误。 如果您也报告您的问题，那就太好了。
有趣的是，有一种方法可以从您自己的 native 代码中捕获异常:Catching exceptions thrown from native code running on Android
关于android - 谷歌视觉 API : Handle native crash，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/43765499/