--- a/hotspot/src/jdk.vm.ci/share/classes/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotJVMCICompilerConfig.java	Mon Jul 11 13:14:19 2016 +0200
+++ b/hotspot/src/jdk.vm.ci/share/classes/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotJVMCICompilerConfig.java	Mon Jul 11 19:15:21 2016 +0000
@@ -32,6 +32,11 @@
 
 final class HotSpotJVMCICompilerConfig {
 
+    /**
+     * This factory allows JVMCI initialization to succeed but raises an error if the VM asks JVMCI
+     * to perform a compilation. This allows the reflective parts of the JVMCI API to be used
+     * without requiring a compiler implementation to be available.
+     */
     private static class DummyCompilerFactory extends JVMCICompilerFactory implements JVMCICompiler {
 
         public HotSpotCompilationRequestResult compileMethod(CompilationRequest request) {
@@ -67,7 +72,6 @@
                 for (JVMCICompilerFactory f : Services.load(JVMCICompilerFactory.class)) {
                     if (f.getCompilerName().equals(compilerName)) {
                         Services.exportJVMCITo(f.getClass());
-                        f.onSelection();
                         factory = f;
                     }
                 }
@@ -75,8 +79,21 @@
                     throw new JVMCIError("JVMCI compiler '%s' not found", compilerName);
                 }
             } else {
-                factory = new DummyCompilerFactory();
+                // Auto select a single available compiler
+                for (JVMCICompilerFactory f : Services.load(JVMCICompilerFactory.class)) {
+                    if (factory == null) {
+                        factory = f;
+                    } else {
+                        // Multiple factories seen - cancel auto selection
+                        factory = null;
+                        break;
+                    }
+                }
+                if (factory == null) {
+                    factory = new DummyCompilerFactory();
+                }
             }
+            factory.onSelection();
             compilerFactory = factory;
         }
         return compilerFactory;

--- a/hotspot/test/compiler/jvmci/events/JvmciNotifyInstallEventTest.java	Mon Jul 11 13:14:19 2016 +0200
+++ b/hotspot/test/compiler/jvmci/events/JvmciNotifyInstallEventTest.java	Mon Jul 11 19:15:21 2016 +0000
@@ -32,16 +32,16 @@
  *          java.base/jdk.internal.org.objectweb.asm.tree
  *          jdk.vm.ci/jdk.vm.ci.hotspot
  *          jdk.vm.ci/jdk.vm.ci.code
+ *          jdk.vm.ci/jdk.vm.ci.code.site
  *          jdk.vm.ci/jdk.vm.ci.meta
  *          jdk.vm.ci/jdk.vm.ci.runtime
  *
- * @ignore 8144964
  * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
  * @build compiler.jvmci.common.JVMCIHelpers
  *     compiler.jvmci.events.JvmciNotifyInstallEventTest
  * @run driver jdk.test.lib.FileInstaller ../common/services/ ./META-INF/services/
  * @run driver jdk.test.lib.FileInstaller ./JvmciNotifyInstallEventTest.config
- *     ./META-INF/services/jdk.vm.ci.hotspot.HotSpotVMEventListener
+ *     ./META-INF/services/jdk.vm.ci.hotspot.services.HotSpotVMEventListener
  * @run driver ClassFileInstaller
  *      compiler.jvmci.common.JVMCIHelpers$EmptyHotspotCompiler
  *      compiler.jvmci.common.JVMCIHelpers$EmptyCompilerFactory
@@ -53,6 +53,11 @@
  *      jdk.test.lib.Asserts
  *      jdk.test.lib.Utils
  * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
+ *     -Xbootclasspath/a:. -Xmixed
+ *     -XX:+UseJVMCICompiler -XX:-BootstrapJVMCI
+ *     -Dcompiler.jvmci.events.JvmciNotifyInstallEventTest.failoninit=false
+ *     compiler.jvmci.events.JvmciNotifyInstallEventTest
+ * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  *     -Djvmci.compiler=EmptyCompiler -Xbootclasspath/a:. -Xmixed
  *     -XX:+UseJVMCICompiler -XX:-BootstrapJVMCI
  *     -Dcompiler.jvmci.events.JvmciNotifyInstallEventTest.failoninit=false
@@ -75,7 +80,7 @@
 import jdk.test.lib.Asserts;
 import java.lang.reflect.Method;
 import jdk.test.lib.Utils;
-import jdk.vm.ci.hotspot.HotSpotVMEventListener;
+import jdk.vm.ci.hotspot.services.HotSpotVMEventListener;
 import jdk.vm.ci.code.CompiledCode;
 import jdk.vm.ci.code.InstalledCode;
 import jdk.vm.ci.code.site.DataPatch;
@@ -88,7 +93,7 @@
 import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime;
 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
 
-public class JvmciNotifyInstallEventTest implements HotSpotVMEventListener {
+public class JvmciNotifyInstallEventTest extends HotSpotVMEventListener {
     private static final String METHOD_NAME = "testMethod";
     private static final boolean FAIL_ON_INIT = !Boolean.getBoolean(
             "compiler.jvmci.events.JvmciNotifyInstallEventTest.failoninit");