diff --git a/its/core-it-suite/src/test/java/org/apache/maven/it/IntegrationTestSuite.java b/its/core-it-suite/src/test/java/org/apache/maven/it/IntegrationTestSuite.java
index 4d1a058e44..9d25de9bbd 100644
--- a/its/core-it-suite/src/test/java/org/apache/maven/it/IntegrationTestSuite.java
+++ b/its/core-it-suite/src/test/java/org/apache/maven/it/IntegrationTestSuite.java
@@ -83,6 +83,7 @@ public static Test suite()
         // -------------------------------------------------------------------------------------------------------------
         // suite.addTestSuite( MavenIT0108SnapshotUpdateTest.class ); -- MNG-3137
 
+        suite.addTestSuite( MavenITmng4936EventSpyTest.class );
         suite.addTestSuite( MavenITmng4925ContainerLookupRealmDuringMojoExecTest.class );
         suite.addTestSuite( MavenITmng4913UserPropertyVsDependencyPomPropertyTest.class );
         suite.addTestSuite( MavenITmng4895PluginDepWithNonRelocatedMavenApiTest.class );
diff --git a/its/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4936EventSpyTest.java b/its/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4936EventSpyTest.java
new file mode 100644
index 0000000000..2883abf71b
--- /dev/null
+++ b/its/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng4936EventSpyTest.java
@@ -0,0 +1,75 @@
+package org.apache.maven.it;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import org.apache.maven.it.Verifier;
+import org.apache.maven.it.util.ResourceExtractor;
+
+import java.io.File;
+import java.util.List;
+
+/**
+ * This is a test set for <a href="http://jira.codehaus.org/browse/MNG-4936">MNG-4936</a>.
+ * 
+ * @author Benjamin Bentmann
+ */
+public class MavenITmng4936EventSpyTest
+    extends AbstractMavenIntegrationTestCase
+{
+
+    public MavenITmng4936EventSpyTest()
+    {
+        super( "[3.0.2,)" );
+    }
+
+    /**
+     * Verify that loading of an event spy extension from CLI works.
+     */
+    public void testit()
+        throws Exception
+    {
+        File testDir = ResourceExtractor.simpleExtractResources( getClass(), "/mng-4936" );
+
+        Verifier verifier = newVerifier( testDir.getAbsolutePath() );
+        verifier.setForkJvm( true );
+        verifier.setAutoclean( false );
+        verifier.deleteDirectory( "target" );
+        verifier.setSystemProperty( "maven.ext.class.path", "spy-0.1.jar" );
+        verifier.getCliOptions().add( "-X" );
+        verifier.executeGoal( "validate" );
+        verifier.verifyErrorFreeLog();
+        verifier.resetStreams();
+
+        List lines = verifier.loadLines( "target/spy.log", "UTF-8" );
+        assertTrue( lines.toString(), lines.get( 0 ).toString().startsWith( "init" ) );
+        assertTrue( lines.toString(), lines.get( lines.size() - 1 ).toString().startsWith( "close" ) );
+        assertTrue( lines.toString(), 
+            lines.contains( "event: org.apache.maven.settings.building.DefaultSettingsBuildingRequest" ) );
+        assertTrue( lines.toString(), 
+            lines.contains( "event: org.apache.maven.settings.building.DefaultSettingsBuildingResult" ) );
+        assertTrue( lines.toString(), 
+            lines.contains( "event: org.apache.maven.execution.DefaultMavenExecutionRequest" ) );
+        assertTrue( lines.toString(), 
+            lines.contains( "event: org.apache.maven.execution.DefaultMavenExecutionResult" ) );
+        assertTrue( lines.toString(), 
+            lines.contains( "event: org.apache.maven.lifecycle.internal.DefaultExecutionEvent" ) );
+    }
+
+}
diff --git a/its/core-it-suite/src/test/resources/mng-4936/pom.xml b/its/core-it-suite/src/test/resources/mng-4936/pom.xml
new file mode 100644
index 0000000000..566eaf2572
--- /dev/null
+++ b/its/core-it-suite/src/test/resources/mng-4936/pom.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+<project>
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>org.apache.maven.its.mng4936</groupId>
+  <artifactId>test</artifactId>
+  <version>0.1</version>
+  <packaging>jar</packaging>
+
+  <name>Maven Integration Test :: MNG-4936</name>
+  <description>
+    Verify that loading of an event spy extension from CLI works.
+  </description>
+</project>
diff --git a/its/core-it-suite/src/test/resources/mng-4936/spy-0.1.jar b/its/core-it-suite/src/test/resources/mng-4936/spy-0.1.jar
new file mode 100644
index 0000000000..f455c48c66
Binary files /dev/null and b/its/core-it-suite/src/test/resources/mng-4936/spy-0.1.jar differ