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copied!<p>To complete mark's answer, that option tells Eclipse when to switch to the associated perspective upon program suspension - meaning when a breakpoint is hit, it will switch to Debug perspective.</p> <p><strong>Switching back to another perspective after you're done debugging has to be manual</strong></p> <p><img src="https://i.stack.imgur.com/CZWnn.jpg" alt="Java perspective"></p> <p>If you want to avoid it switching to Debug in the first place, you can choose "Never" as the option (introduced in Eclipse 3.2 at the time).</p> <p>(You can find the given <code>Preferences</code> page in <code>Run/Debug > Perspective</code>)</p> <p><img src="https://i.stack.imgur.com/pZLhC.png" alt="alt text"></p> <p>If you want to switch back in the situation where the debugged program terminates normally (Not when <em>you</em> want to stop debugging it yourself), you may hope Eclipse figures out that your program terminates normally and switch to a "default" perspective at that time...</p> <p>However, there is no notion of "default" perspective, so how would Eclipse knows which one to switch to ? (the "Preferences/Perspectives/Make default" is only for the "Open Perspective" dialog, but that may not be the same perspective than the one you actually want to switch back to after a debug)</p> <p><img src="https://i.stack.imgur.com/l6mCj.gif" alt="Open perspective"></p> <p>Also, should Eclipse closes the Debug perspective or just changes to a different one ?<br> What if there is more than one program running -- when one terminates, you might still be interested in debugging the other one, or maybe not.</p> <p>The point is, the decision about <em>when</em> to change perspective (and <em>what</em> perspective to change to) is not reasonable for the machine to make -- it requires a person knowing what he wants to do next.</p>

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