SQL Developer Freezes on Ubuntu

Some of you have faced the problem when SQL Developer on Ubuntu which just freeze after some idle time. More information about this issue and solution can be found under [1]. I must to admit that this solution is quite complex, so I decided to prepare some very simple tool called SQLDeveloper Killer. Below I paste some source code in Java which aims to list all processes which are alive in system and find particular process which corresponds to SQL Developer process (contains "sqldeveloper.conf" in CMD description).

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package killsqldeveloper;

import java.io.BufferedReader;
import java.io.InputStreamReader;

/**
 *
 * @author lciesluk
 */
public class KillSQLDeveloper {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        try {
            Process exec = Runtime.getRuntime().exec(new String[]{"ps", "-ef"});
            exec.waitFor();

            BufferedReader reader
                    = new BufferedReader(new InputStreamReader(exec.getInputStream()));

            String line = "";
            while ((line = reader.readLine()) != null) {
                if (line.contains("sqldeveloper.conf")) {
                    System.out.println(line);
                    String[] split = line.split(" ");
                    if (split.length > 2) {
                        System.out.println(split[1]);
                        if (!split[1].equals("")) {
                            Process execKill = Runtime.getRuntime().exec(new String[]{"kill", "-9", split[1]});
                            execKill.waitFor();
                        } else {
                            Process execKill = Runtime.getRuntime().exec(new String[]{"kill", "-9", split[2]});
                            execKill.waitFor();
                        }
                    }
                    break;
                }
            }

        } catch (Exception e) {
            System.out.println(e.getMessage());
        }
    }
}

After you paste this code to your IDE, you can install very useful tool called alacarte to create Unity launcher on Ubuntu.

SQL Developer Killer

Reference : [1] Alexeymoseyev.wordpress.com - Oracle SQL Developer hangs on Linux [2] Pastebin.com - Source Code [3] Alacarte - Ubuntu menu editor