I have a small JNI file with a native function that converts a char array to a byte array (So i can send it to my C++ client).
The definition is as followed:
JNIEXPORT jbyteArray JNICALL Java_com_example_comtesttcp_communicationmoduleTCPIP_ConvertString(
JNIEnv * env, jobject,
jcharArray Buffer)
The package name (where the library is loaded is:
package com.example.communicationmoduleTCPIP
And the native deffiniton in the class is as followd:
// Load helper functions library
static {
System.loadLibrary("HelperFunctions");
}
public native byte[] ConvertString(char[] Buffer);
But when the ConvertString function is called then i get the folowing error:
01-13 21:07:21.890: W/dalvikvm(22611): No implementation found for native Lcom/example/communicationmoduleTCPIP/communicationmoduleTCPIP;.ConvertString:([C)[B
01-13 21:07:21.890: W/dalvikvm(22611): threadid=11: thread exiting with uncaught exception (group=0x412b52a0)
01-13 21:07:21.900: E/AndroidRuntime(22611): FATAL EXCEPTION: Thread-821
01-13 21:07:21.900: E/AndroidRuntime(22611): java.lang.UnsatisfiedLinkError: Native method not found: com.example.communicationmoduleTCPIP.communicationmoduleTCPIP.ConvertString:([C)[B
01-13 21:07:21.900: E/AndroidRuntime(22611): at com.example.communicationmoduleTCPIP.communicationmoduleTCPIP.ConvertString(Native Method)
01-13 21:07:21.900: E/AndroidRuntime(22611): at com.example.communicationmoduleTCPIP.communicationmoduleTCPIP.SendBuffer(communicationmoduleTCPIP.java:164)
01-13 21:07:21.900: E/AndroidRuntime(22611): at com.example.communicationmoduleTCPIP.communicationmoduleTCPIP.RunServer(communicationmoduleTCPIP.java:107)
01-13 21:07:21.900: E/AndroidRuntime(22611): at com.example.communicationmoduleTCPIP.communicationmoduleTCPIP.run(communicationmoduleTCPIP.java:368)
01-13 21:07:21.900: E/AndroidRuntime(22611): at java.lang.Thread.run(Thread.java:856)
Could the problem be that the class (communicationmoduleTCPIP) is a runnable class? I't runs in a class and has the following definition (the server runs fine when i comment the native function)
public class communicationmoduleTCPIP extends communicationmodule implements Runnable
I have looked around on the net and after reading some post i think definition right, can some one tell me what i'm doing wrong? Any suggestions are welcome.
