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    <p>Ultimately I solved the problem by doing the following:</p> <ol> <li><p>Inside my program, for calling <code>adb start-server</code>, I no longer use <code>org.apache.commons.exec.DefaultExecutor.execute("adb start-server")</code> nor Java's <code>Runtime.getRuntime().exec("adb start-server")</code>.<br> Instead, I use <code>java.lang.ProcessBuilder("adb start-server").inheritIO().start().waitFor()</code>. Note the <code>inheritIO()</code> is added in Java 7 and allows for online reading of the started process stdout, among others.<br> <strong>EDIT</strong> The <code>inheritIO()</code> in Gradle has no effect when Gradle is called from CLI directly as opposed to being called by IntelliJ IDEA. See <a href="https://stackoverflow.com/questions/10671081/windows-java-child-process-doesnt-input-or-output-when-set-to-parents-standard">this question</a> for details. Probably implementing <code>StreamGobbler</code> as described <a href="http://www.javaworld.com/jw-12-2000/jw-1229-traps.html?page=4" rel="nofollow noreferrer">here</a> would fix the problem.</p></li> <li><p>In Gradle, instead of Gradle's <a href="http://www.gradle.org/docs/current/userguide/application_plugin.html" rel="nofollow noreferrer">application plugin</a>'s <code>run</code> task, I again use <code>ProcessBuilder</code> reusing <code>run</code> tasks variables. It looks like so:</p></li> </ol> <pre><code>apply plugin: 'java' apply plugin: 'application' sourceCompatibility = '1.7' targetCompatibility = '1.7' // configuration-time of the original run task run { main = com.example.MainClass; // without this, our custom run will try to run "null" } task myRun(dependsOn: build) { // execution-time of our custom run task. doFirst { ProcessBuilder pb = new ProcessBuilder(tasks['run'].commandLine); pb.directory(tasks['run'].workingDir); // works when the gradle command is executed from IntelliJ IDEA, has no effect when executed from standalone CLI interface. pb.inheritIO(); Process proc = pb.start(); proc.waitFor(); } } </code></pre> <p>As for the reason of the strange behaviors, I don't have any definite answer, so I refrain from further comments.</p> <p><strong>EDIT 9 July 2013</strong><br> <a href="https://stackoverflow.com/questions/931536/how-do-i-launch-a-completely-independent-process-from-a-java-program">This question</a> seems to point out the answer to Question 2 is: on windows, the parent process waits for child process before it terminates. Unfortunately, the solutions proposed there do not work because of problem stated in Question 1. </p> <p>Hope this helps,<br> Konrad</p>
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