Return jbyte to a C function (JNI)
... it is in the varibale jnistr ,which is a const jbyte. My confusion starts here: How can I pass the const jbyte to a C function, so that the whole string is ... Return jbyte to a C function (JNI) Ann I have a program ...
http://www.javakb.com/Uwe/Forum.aspx/java-programmer/13459

JNI: C vs C++
... book:   JNIEXPORT jstring JNICALL   Java_Prompt_getLine( JNIEnv *env, jobject obj, jstring prompt )   {      char buf[128];      const jbyte *str;      str = (*env)->GetStringUTFChars( env, prompt, NULL );      if ( str == NULL ) return NULL;      printf("%s", str ...
http://www.javakb.com/Uwe/Forum.aspx/java-programmer/27474

JNI: Signedness with GetStringUTFChars() and ReleaseStringUTFChars()
... h"   JNIEXPORT jstring JNICALL   Java_Prompt_getLine( JNIEnv *env, jobject obj, jstring prompt )   {      char buf[128];      const jbyte *str;      str = (*env)->GetStringUTFChars( env, prompt, NULL );      if ( str == NULL ) return NULL;      printf("%s", str ...
http://www.javakb.com/Uwe/Forum.aspx/java-programmer/27473

What does FindClass() return?
... attempt DefineClass(). Make this part work first! Note too that DefineClass() wants a jbyte* (i.e. native array of jbyte), not a "java byte array" as you're using in the ... the class ... BYTE_ARRAY::size_type len = byteField.size(); jbyteArray jByteField = mEnv->NewByteArray(static_cast<jsize>(len)); jbyte ...
http://www.javakb.com/Uwe/Forum.aspx/java-programmer/31899

Problem with JNI
... true;    }    return false; } JNIEXPORT jboolean JNICALL Java_it_ribes_serialDriver_SerialPort_send (JNIEnv *env, jobject jobj, jbyteArray packet, jint length) {    jbyte* rawJavaData = (jbyte*)malloc(length*sizeof(jbyte));    LPBYTE rawData = (LPBYTE)malloc(length*sizeof(BYTE));    int i = 0, ret;    rawJavaData = env->GetByteArrayElements(packet ... to use ReleaseByteArrayElements() to release my rawJavaData array, which is a jbyte *...but I saw that ...
http://www.javakb.com/Uwe/Forum.aspx/java-programmer/34192

Memory leak in native code
... executed portion of my code:    jbyteArray jbaKey = static_cast<jbyteArray>(env->GetObjectField(jobjUpdateRec, key_fid));     jbyte *arrKey1 = env->GetByteArrayElements(jbaKey, NULL);     char *arrKey2 = (char *)&currentKey;     if(blEnableRecordLevelLogging)         syslog(...);     for( int ...
http://www.javakb.com/Uwe/Forum.aspx/java-programmer/26259

Java String to LPCWSTR Question
... String to LPCWSTR Question res7cxbi@verizon.net How do you convert a jbyte* that i get from GetStringUTFChars in JNI to an LPCWSTR? Roedy ...
http://www.javakb.com/Uwe/Forum.aspx/java-programmer/23546

JNI Memory Loss?
... jmethodID mid_newString, mid_newStringEncoding; char *jbyteArray2cstr( JNIEnv *env, jbyteArray javaBytes ) {    size_t len = (*env)->GetArrayLength(env, javaBytes);    jbyte *nativeBytes = (*env)->GetByteArrayElements(env, javaBytes, 0);    char *nativeStr = malloc(len+1);    strncpy( nativeStr, nativeBytes, len ...
http://www.javakb.com/Uwe/Forum.aspx/java-programmer/9668

JNI with multidimensional Byte Array
... should be declared "jobjectArray". - GetCharArrayElements() should be GetByteArrayElements(). - Details should be array of jbyte*. - you shouldn't pass Details[i] directly to printf(), since they  aren't ...
http://www.javakb.com/Uwe/Forum.aspx/java-programmer/30587

Making and Returning Java Byte Arrays in C++ via JNI (Help! Please!)
... buffer retrieved by GetSample() (a method implemented by me) into the jbyte array completely screws up everything More interestingly, this method works for the first ...
http://www.javakb.com/Uwe/Forum.aspx/java-programmer/22829