Android suporte

[alexsilva]

Do not know if that library should work on android, but the test did not get good results.

package com.example.JavaDN;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import org.xeustechnologies.jcl.JarClassLoader;
import org.xeustechnologies.jcl.JclObjectFactory;

import java.net.MalformedURLException;
import java.net.URL;

public class MainActivity extends Activity implements Runnable {

    JarClassLoader mJcl;
    TextView log;

    /**
     * Called when the activity is first created.
     */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        mJcl = new JarClassLoader();

        log = (TextView) findViewById(R.id.log);

        new Thread(this).start();
    }

    @Override
    public void run() {
        log.setText("Loading lib...");
        try {
            mJcl.add(new URL("https://dl.dropboxusercontent.com/u/67269258/lib_class.jar"));
        } catch (MalformedURLException e){
            e.printStackTrace();
        }

        JclObjectFactory factory = JclObjectFactory.getInstance();

        //Create object of loaded class
        Object obj = factory.create(mJcl, "Math");

        log.setText("ready! " + obj);
    }
}

Error:

06-08 19:17:15.799    7604-7617/com.example.JavaDN E/dalvikvm﹕ ERROR: defineClass(0x4261d390, Math, 0x42691238, 0, 812)
06-08 19:17:15.799    7604-7617/com.example.JavaDN W/dalvikvm﹕ threadid=11: thread exiting with uncaught exception (group=0x41bef700)
06-08 19:17:15.804    7604-7617/com.example.JavaDN E/AndroidRuntime﹕ FATAL EXCEPTION: Thread-3011
    org.xeustechnologies.jcl.exception.JclException: java.lang.UnsupportedOperationException: can't load this type of class file
            at org.xeustechnologies.jcl.JclObjectFactory.create(JclObjectFactory.java:102)
            at org.xeustechnologies.jcl.JclObjectFactory.create(JclObjectFactory.java:85)
            at com.example.JavaDN.MainActivity.run(MainActivity.java:44)
            at java.lang.Thread.run(Thread.java:841)
     Caused by: java.lang.UnsupportedOperationException: can't load this type of class file
            at java.lang.VMClassLoader.defineClass(Native Method)
            at java.lang.ClassLoader.defineClass(ClassLoader.java:292)
            at java.lang.ClassLoader.defineClass(ClassLoader.java:256)
            at org.xeustechnologies.jcl.JarClassLoader.access$000(JarClassLoader.java:50)
            at org.xeustechnologies.jcl.JarClassLoader$LocalLoader.loadClass(JarClassLoader.java:254)
            at org.xeustechnologies.jcl.AbstractClassLoader.loadClass(AbstractClassLoader.java:122)
            at org.xeustechnologies.jcl.AbstractClassLoader.loadClass(AbstractClassLoader.java:95)
            at org.xeustechnologies.jcl.JclObjectFactory.create(JclObjectFactory.java:100)
            at org.xeustechnologies.jcl.JclObjectFactory.create(JclObjectFactory.java:85)
            at com.example.JavaDN.MainActivity.run(MainActivity.java:44)
            at java.lang.Thread.run(Thread.java:841)

[alexsilva]

Works on pc:

package com.example.JavaDN;

import org.xeustechnologies.jcl.JarClassLoader;
import org.xeustechnologies.jcl.JclObjectFactory;

import java.net.MalformedURLException;
import java.net.URL;

/**
 * Main
 */
public class Main {

    public static void main(String[] args){

        JarClassLoader mJcl = new JarClassLoader();

        System.out.println("Loading lib...");
        try {
            mJcl.add(new URL("https://dl.dropboxusercontent.com/u/67269258/lib_class.jar"));
        } catch (MalformedURLException e){
            e.printStackTrace();
        }

        JclObjectFactory factory = JclObjectFactory.getInstance();

        //Create object of loaded class
        Object obj = factory.create(mJcl, "Math");

        System.out.println("ready! " + obj);

    }
}

[alexsilva]

I believe that the solution to this lies in the proxy (ProxyClassLoader)

http://larshamren.blogspot.com.br/2012/02/android-dynamically-loading-classes.html

The problem is to implement it.