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java - Android (ART) 崩溃并出现错误 JNI DETECTED ERROR IN APPLICATION : jstring is an invalid local reference

转载 作者:行者123 更新时间:2023-11-28 05:02:02 26 4
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我正在编写一个 Android 应用程序来处理来自 native C (NDK r15b) 的图片(RAW 格式)。我收到以下错误:

08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xa3f20b80 SpaceTypeMallocSpace begin=0x12c00000,end=0x12e17000,limit=0x2ac00000,size=2MB,capacity=384MB,non_growth_limit_capacity=384MB,name="main rosalloc space"]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xa3f1fa80 allocspace main rosalloc space live-bitmap 3[begin=0x12c00000,end=0x2ac00000]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xa3f1fac0 allocspace main rosalloc space mark-bitmap 3[begin=0x12c00000,end=0x2ac00000]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf99b780 SpaceTypeImageSpace begin=0x6fbf5000,end=0x6fcf9288,size=1040KB,name="/data/dalvik-cache/x86/system@framework@boot.art"]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92f1e0 imagespace /data/dalvik-cache/x86/system@framework@boot.art live-bitmap 0[begin=0x6fbf5000,end=0x6fcf9300]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92f1e0 imagespace /data/dalvik-cache/x86/system@framework@boot.art live-bitmap 0[begin=0x6fbf5000,end=0x6fcf9300]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf99b900 SpaceTypeImageSpace begin=0x6fdf7000,end=0x6fe5f5a8,size=417KB,name="/data/dalvik-cache/x86/system@framework@boot-core-libart.art"]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92f400 imagespace /data/dalvik-cache/x86/system@framework@boot-core-libart.art live-bitmap 1[begin=0x6fdf7000,end=0x6fe5f600]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92f400 imagespace /data/dalvik-cache/x86/system@framework@boot-core-libart.art live-bitmap 1[begin=0x6fdf7000,end=0x6fe5f600]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf99b940 SpaceTypeImageSpace begin=0x6ff12000,end=0x6ff258f8,size=78KB,name="/data/dalvik-cache/x86/system@framework@boot-conscrypt.art"]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92f500 imagespace /data/dalvik-cache/x86/system@framework@boot-conscrypt.art live-bitmap 2[begin=0x6ff12000,end=0x6ff25900]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92f500 imagespace /data/dalvik-cache/x86/system@framework@boot-conscrypt.art live-bitmap 2[begin=0x6ff12000,end=0x6ff25900]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf99ba80 SpaceTypeImageSpace begin=0x6ff3c000,end=0x6ff4b040,size=60KB,name="/data/dalvik-cache/x86/system@framework@boot-okhttp.art"]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92f640 imagespace /data/dalvik-cache/x86/system@framework@boot-okhttp.art live-bitmap 3[begin=0x6ff3c000,end=0x6ff4b100]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92f640 imagespace /data/dalvik-cache/x86/system@framework@boot-okhttp.art live-bitmap 3[begin=0x6ff3c000,end=0x6ff4b100]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf99bbc0 SpaceTypeImageSpace begin=0x6ff66000,end=0x6ff66260,size=608B,name="/data/dalvik-cache/x86/system@framework@boot-core-junit.art"]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92f780 imagespace /data/dalvik-cache/x86/system@framework@boot-core-junit.art live-bitmap 4[begin=0x6ff66000,end=0x6ff66300]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92f780 imagespace /data/dalvik-cache/x86/system@framework@boot-core-junit.art live-bitmap 4[begin=0x6ff66000,end=0x6ff66300]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf99bd00 SpaceTypeImageSpace begin=0x6ff68000,end=0x6ff81ad0,size=102KB,name="/data/dalvik-cache/x86/system@framework@boot-bouncycastle.art"]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92fcc0 imagespace /data/dalvik-cache/x86/system@framework@boot-bouncycastle.art live-bitmap 5[begin=0x6ff68000,end=0x6ff81b00]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92fcc0 imagespace /data/dalvik-cache/x86/system@framework@boot-bouncycastle.art live-bitmap 5[begin=0x6ff68000,end=0x6ff81b00]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf99be40 SpaceTypeImageSpace begin=0x6ffa0000,end=0x6ffb7f58,size=95KB,name="/data/dalvik-cache/x86/system@framework@boot-ext.art"]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92fdc0 imagespace /data/dalvik-cache/x86/system@framework@boot-ext.art live-bitmap 6[begin=0x6ffa0000,end=0x6ffb8000]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92fdc0 imagespace /data/dalvik-cache/x86/system@framework@boot-ext.art live-bitmap 6[begin=0x6ffa0000,end=0x6ffb8000]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf99bf80 SpaceTypeImageSpace begin=0x6ffd7000,end=0x702246e0,size=2MB,name="/data/dalvik-cache/x86/system@framework@boot-framework.art"]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92ff20 imagespace /data/dalvik-cache/x86/system@framework@boot-framework.art live-bitmap 7[begin=0x6ffd7000,end=0x70224700]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92ff20 imagespace /data/dalvik-cache/x86/system@framework@boot-framework.art live-bitmap 7[begin=0x6ffd7000,end=0x70224700]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf99b7c0 SpaceTypeImageSpace begin=0x7058e000,end=0x705dbed8,size=311KB,name="/data/dalvik-cache/x86/system@framework@boot-telephony-common.art"]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf9fd840 imagespace /data/dalvik-cache/x86/system@framework@boot-telephony-common.art live-bitmap 8[begin=0x7058e000,end=0x705dbf00]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf9fd840 imagespace /data/dalvik-cache/x86/system@framework@boot-telephony-common.art live-bitmap 8[begin=0x7058e000,end=0x705dbf00]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92d340 SpaceTypeImageSpace begin=0x7060c000,end=0x7060d520,size=5KB,name="/data/dalvik-cache/x86/system@framework@boot-voip-common.art"]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92f180 imagespace /data/dalvik-cache/x86/system@framework@boot-voip-common.art live-bitmap 9[begin=0x7060c000,end=0x7060d600]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92f180 imagespace /data/dalvik-cache/x86/system@framework@boot-voip-common.art live-bitmap 9[begin=0x7060c000,end=0x7060d600]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92d380 SpaceTypeImageSpace begin=0x70612000,end=0x70618850,size=26KB,name="/data/dalvik-cache/x86/system@framework@boot-ims-common.art"]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf9fd9a0 imagespace /data/dalvik-cache/x86/system@framework@boot-ims-common.art live-bitmap 10[begin=0x70612000,end=0x70618900]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf9fd9a0 imagespace /data/dalvik-cache/x86/system@framework@boot-ims-common.art live-bitmap 10[begin=0x70612000,end=0x70618900]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92d4c0 SpaceTypeImageSpace begin=0x7061d000,end=0x7061d118,size=280B,name="/data/dalvik-cache/x86/system@framework@boot-apache-xml.art"]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf9fdaa0 imagespace /data/dalvik-cache/x86/system@framework@boot-apache-xml.art live-bitmap 11[begin=0x7061d000,end=0x7061d200]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf9fdaa0 imagespace /data/dalvik-cache/x86/system@framework@boot-apache-xml.art live-bitmap 11[begin=0x7061d000,end=0x7061d200]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf92d600 SpaceTypeImageSpace begin=0x70635000,end=0x70644618,size=61KB,name="/data/dalvik-cache/x86/system@framework@boot-org.apache.http.legacy.boot.art"]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf9fdba0 imagespace /data/dalvik-cache/x86/system@framework@boot-org.apache.http.legacy.boot.art live-bitmap 12[begin=0x70635000,end=0x70644700]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf9fdba0 imagespace /data/dalvik-cache/x86/system@framework@boot-org.apache.http.legacy.boot.art live-bitmap 12[begin=0x70635000,end=0x70644700]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xa5f3bdc0 SpaceTypeZygoteSpace begin=0x747ca000,end=0x748d2000,size=1056KB,name="Zygote space"]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf9fdca0 allocspace zygote / non moving space live-bitmap 0[begin=0x747ca000,end=0x748d2000]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xaf9fdce0 allocspace zygote / non moving space mark-bitmap 0[begin=0x747ca000,end=0x748d2000]
08-14 18:08:25.407 6107-6107/compresor.app.tfg.compresor E/art: 0xa3f20a80

我用 Java 运行的代码是:

package compresor.app.tfg.compresor;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);


Button boton=(Button)findViewById(R.id.button);




boton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Code here executes on main thread after user presses button

MyNDK myNDK=new MyNDK();
char[] arguments;
arguments= new char[]{' '};

myNDK.compresion(arguments);


}
});



}
}



package compresor.app.tfg.compresor;



public class MyNDK {

static {

System.loadLibrary("ndkmain");
}

public native void compresion(char[] argv);

}

对应的原生代码为:

      #include <jni.h>
#include<Principal.h>
#include <compresor_app_tfg_compresor_MyNDK.h>


JNIEXPORT void JNICALL
Java_compresor_app_tfg_compresor_MyNDK_compresion(JNIEnv* env, jobject ,
jobjectArray jargv){


//jargv is a Java array of Java strings
int argc = env->GetArrayLength(jargv);
typedef char *pchar;
pchar *argv = new pchar[argc];
int i;
for (i = 0; i < argc; i++) {
jstring js = (jstring) env->GetObjectArrayElement(jargv, i); //A Java string
const char *pjc = env->GetStringUTFChars(js,NULL); //A pointer to a Java-managed char buffer
size_t jslen = strlen(pjc);
argv[i] = new char[jslen + 1]; //Extra char for the terminating null
strcpy(argv[i], pjc); //Copy to *our* buffer. We could omit that, but IMHO this is cleaner. Also, const correctness.
env->ReleaseStringUTFChars(js, pjc);
}

//Call main

Principal *pa = Principal::CreateInstance(argc, argv);
pa->Run();
pa->FreeInstance();

//Now free the array
for (i = 0; i < argc; i++)
delete[] argv[i];
delete[] argv;




}

我不明白错误是从哪里来的,但它似乎与本地代码编写得不好有关,并且我在不适当的内存中写入了一部分

先谢谢你

更新

我用字符串修改代码如下:

package compresor.app.tfg.compresor;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);


Button boton=(Button)findViewById(R.id.button);


boton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Code here executes on main thread after user presses button

MyNDK myNDK = new MyNDK();
String[] arguments = new String[]{"-C","-Qt","1"};

myNDK.compresion(arguments);



}
});

}}

应用程序退出而不给出任何错误消息。 C++ 中的应用程序运行良好,当您提供图像时,压缩器会生成一个文件 (out.bts),例如 image.bmp 或 image.dng。 C++中comprresor.exe的参数是:

compressor.exe -C -Qt 1 -i image.bmp -o out.bts -c config.txt -w 512 -h 
512 -b 2.0 -a 0 -Q 0.8 -Xi 0.375 -d 0.5

我的 Android.mk 文件如下所示:

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := ndkmain
LOCAL_SRC_FILES :=ndkmain.cpp CodificadorAritmetico.cpp cuentasim.cpp
Estima.cpp principal.cpp sb_utils.cpp TBitsContainer.cpp TBitStream.cpp
TFichero.cpp TFormatTransform.cpp TImg_SLTWFloat.cpp TImgCoder.cpp
TQMatrix.cpp TTransformada.cpp totales.cpp
LOCAL_CPP_FEATURES += exceptions
LOCAL_LDLIBS := -llog -landroid -lEGL -lGLESv2 -lz -lm
LOCAL_LDFLAGS := -Wl,--allow-multiple-definition
include $(BUILD_SHARED_LIBRARY)

我的 Application.mk 看起来像:

APP_MODULES:=ndkmain
APP_ABI := all
APP_STL:=stlport_shared

我看不到错误的来源

最佳答案

在 Java 中,char[]String 不是同义词。您的方法定义为 compresion(char[] argv),并且您将 char 数组传递给它。因此,您的 native 代码必须处理 jchar 数组,而不是字符串数组:

JNIEXPORT void JNICALL 
Java_compresor_app_tfg_compresor_MyNDK_compresion(JNIEnv* env, jobject ,
jcharArray jargv) {

//jargv is a Java array of characters
int argc = env->GetArrayLength(jargv);
jchar *argv = new jchar[argc];
env->GetCharArrayRegion(jargv, 0, argc, argv);

请注意,jchar 不是 C char,而是 uint16_t

但我想这个小 fragment 并不是您真正想要的。

您的 Intent 很可能是传递一个 Java 字符串数组。这意味着您的 Java 应该看起来不同:

MyNDK myNDK = new MyNDK();
String[] arguments = new String[]{"1", "2", "3"};

myNDK.compresion(arguments);

public native void compresion(String[] argv);

现在,您的 C++ 代码应该可以工作了。

PS 一些改进建议:

  • 如果您将 native 方法声明为static,则无需构造myNDK
  • 您可以使用 strdup() 而不是 new char[] + strcpy
  • 如果 argc 可能不止几个,您应该调用 env->DeleteLocalRef(js)
  • 您不应在 UI 线程上执行繁重的计算(例如压缩)。
  • 在英语中,'compression' 和 'compressor' 都用拼写。

关于java - Android (ART) 崩溃并出现错误 JNI DETECTED ERROR IN APPLICATION : jstring is an invalid local reference,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/45681730/

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