java - Android (ART) crash with error JNI DETECTED ERROR IN APPLICATION: jstring is an invalid local reference -
i writing android application processes picture(raw format) native c (ndk r15b). im getting following errors:
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 the code run in java is:
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); } the corresponding native code is:
#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 java array of java strings int argc = env->getarraylength(jargv); typedef char *pchar; pchar *argv = new pchar[argc]; int i; (i = 0; < argc; i++) { jstring js = (jstring) env->getobjectarrayelement(jargv, i); //a java string const char *pjc = env->getstringutfchars(js,null); //a pointer java-managed char buffer size_t jslen = strlen(pjc); argv[i] = new char[jslen + 1]; //extra char terminating null strcpy(argv[i], pjc); //copy *our* buffer. omit that, imho cleaner. also, const correctness. env->releasestringutfchars(js, pjc); } //call main principal *pa = principal::createinstance(argc, argv); pa->run(); pa->freeinstance(); //now free array (i = 0; < argc; i++) delete[] argv[i]; delete[] argv; } i not understand error comes seems have native code not written , writing in part of inappropriate memory
thank in adavance
update
i have modifier code strings follows:
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); } }); }} the application quits without giving error message. application in c++ works fine, comprresor generate file(out.bts) when give image, example image.bmp or image.dng. parameters on comprresor.exe in c++ are:
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 my android.mk file looks like:
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) and application.mk looks like:
app_modules:=ndkmain app_abi := app_stl:=stlport_shared i not able see error comes from
in java, char[] , string not synonyms. method defined compresion(char[] argv), , pass char array it. so, native code must deal jchar array, not array of strings:
jniexport void jnicall java_compresor_app_tfg_compresor_myndk_compresion(jnienv* env, jobject , jchararray jargv) { //jargv java array of characters int argc = env->getarraylength(jargv); jchar *argv = new jchar[argc]; env->getchararrayregion(jargv, 0, argc, argv); note jchar not c char, rather uint16_t.
but guess little snippet not wanted.
most likely, intention pass array of java strings. means java should different:
myndk myndk = new myndk(); string[] arguments = new string[]{"1", "2", "3"}; myndk.compresion(arguments); … public native void compresion(string[] argv); now, your c++ code should work.
ps few improvement suggestions:
- if declare native method static, don't need construct myndk.
- you can use strdup() instead of new char[] + strcpy.
- you should call env->deletelocalref(js) if argc may more few.
- you should not perform heavy calculations (e.g. compression) on ui thread.
- in english, both 'compression' , 'compressor' spell double s.
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