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| <title>Remote debugging</title> |
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| <h1>Remote debugging</h1> |
| |
| <p>The client/server design of the Java debugger allows you to launch a Java |
| program from computer on your network and debug it from the workstation |
| running the platform. This is particularly useful when you are |
| developing a program for a device that cannot host the development |
| platform. It is also useful when debugging programs on dedicated |
| machines such as web servers. </p> |
| |
| <p>Note: To use remote debugging, you must be using a Java VM that |
| supports this feature.</p> |
| |
| <p>To debug a program remotely, you must be able to launch the program in |
| debug mode on the remote machine so that it will wait for a connection from |
| your debugger. The specific technique for launching the program and |
| connecting the debugger are VM-specific. The basic steps are as |
| follows:</p> |
| |
| <ol> |
| <li>Ensure that you are building your Java program with available debug |
| information. (You can control these attributes from the |
| <a class="command-link" href='javascript:executeCommand("org.eclipse.ui.window.preferences(preferencePageId=org.eclipse.jdt.ui.preferences.CompliancePreferencePage)")'> |
| <img src="PLUGINS_ROOT/org.eclipse.help/command_link.png" alt="Goto the Java compiler preference page"> |
| <strong>Java > Compiler</strong></a> preference page). </li> |
| <li>After you build your Java program, install it to the target |
| computer. This involves copying the .CLASS files or .JAR files to |
| the appropriate location on the remote computer.</li> |
| <li>Invoke the Java program on the remote computer using the appropriate |
| VM arguments to specify debug mode and a communication port for the |
| debugger.</li> |
| <li>Start the debugger using a remote launch configuration and specify the |
| address and port of the remote computer.</li> |
| </ol> |
| <p>More specific instructions for setting up a launch configuration for |
| remote debugging should be obtained from your VM provider. </p> |
| <p><img border="0" src="../images/ngrelt.png" alt="Related tasks" ></p> |
| <p> |
| <a href="../tasks/tasks-141.htm">Using the remote Java application launch configuration</a><br> |
| <a href="../tasks/tasks-142.htm">Disconnecting from a VM</a> |
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