[JENKINS-10615]

Reproduced the problem. Workspace is getting released prematurely, before publishers run. This has all sorts of serious problems.

test/src/test/groovy/hudson/model/AbstractProjectTest.groovy

@@ -28,8 +28,11 @@ import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException;
 import com.gargoylesoftware.htmlunit.HttpMethod;
 import com.gargoylesoftware.htmlunit.WebRequestSettings
 import com.gargoylesoftware.htmlunit.html.HtmlPage;
-import hudson.security.*;
-import hudson.tasks.BuildTrigger;
+import hudson.security.*
+import hudson.tasks.BuildStepMonitor;
+import hudson.tasks.BuildTrigger
+import hudson.tasks.Publisher
+import hudson.tasks.Recorder;
 import hudson.tasks.Shell;
 import hudson.scm.NullSCM;
 import hudson.Launcher;
@@ -47,13 +50,16 @@ import org.acegisecurity.context.SecurityContext;
 import org.acegisecurity.context.SecurityContextHolder;
 import org.jvnet.hudson.test.HudsonTestCase
 import org.jvnet.hudson.test.Bug;
-import org.jvnet.hudson.test.MemoryAssert;
+import org.jvnet.hudson.test.MemoryAssert
+import org.jvnet.hudson.test.SequenceLock;
 import org.jvnet.hudson.test.recipes.PresetData;
 import org.jvnet.hudson.test.recipes.PresetData.DataSet
 import org.apache.commons.io.FileUtils;
 import java.lang.ref.WeakReference
 
-import org.jvnet.hudson.test.MockFolder;
+import org.jvnet.hudson.test.MockFolder
+
+import java.util.concurrent.Phaser;
 
 /**
  * @author Kohsuke Kawaguchi
@@ -483,4 +489,45 @@ public class AbstractProjectTest extends HudsonTestCase {
         def t = j.triggers()[1]
         assert t == newTrigger
     }
+
+    @Bug(10615)
+    public void testWorkspaceLock() {
+        def p = createFreeStyleProject()
+        p.concurrentBuild = true;
+        def e1 = new OneShotEvent(), e2=new OneShotEvent()
+        def done = new OneShotEvent()
+
+        p.publishersList.add(new Recorder() {
+            BuildStepMonitor getRequiredMonitorService() {
+                return BuildStepMonitor.NONE;
+            }
+
+            @Override
+            boolean perform(AbstractBuild<?, ?> build, Launcher launcher, BuildListener listener) throws InterruptedException, IOException {
+                if (build.number==1) {
+                    e1.signal();  // signal that build #1 is in publisher
+                } else {
+                    assert build.number==2;
+                    e2.signal()
+                }
+
+                done.block()
+
+                return true;
+            }
+            private Object writeReplace() { return new Object(); }
+        })
+
+        def b1 = p.scheduleBuild2(0)
+        e1.block()
+
+        def b2 = p.scheduleBuild2(0)
+        e2.block()
+
+        // at this point both builds are in the publisher, so we verify that
+        // the workspace are differently allocated
+        assert b1.startCondition.get().workspace!=b2.startCondition.get().workspace
+
+        done.signal()
+    }
 }