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 2515834696..a10874e404 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
@@ -290,6 +290,7 @@ public class IntegrationTestSuite
         suite.addTestSuite( MavenITmng2739RequiredRepositoryElementsTest.class );
         suite.addTestSuite( MavenITmng2720SiblingClasspathArtifactsTest.class );
         suite.addTestSuite( MavenITmng2695OfflinePluginSnapshotsTest.class );
+        suite.addTestSuite( MavenITmng2693SitePluginRealmTest.class );
         suite.addTestSuite( MavenITmng2690MojoLoadingErrorsTest.class );
         suite.addTestSuite( MavenITmng2668UsePluginDependenciesForSortingTest.class );
         suite.addTestSuite( MavenITmng2605BogusProfileActivationTest.class );
diff --git a/its/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng2693SitePluginRealmTest.java b/its/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng2693SitePluginRealmTest.java
new file mode 100644
index 0000000000..82e7bc4499
--- /dev/null
+++ b/its/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng2693SitePluginRealmTest.java
@@ -0,0 +1,71 @@
+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.Properties;
+
+/**
+ * This is a test set for <a href="http://jira.codehaus.org/browse/MNG-2693">MNG-2693</a>.
+ * 
+ * @author Benjamin Bentmann
+ */
+public class MavenITmng2693SitePluginRealmTest
+    extends AbstractMavenIntegrationTestCase
+{
+
+    public MavenITmng2693SitePluginRealmTest()
+    {
+        super( "(2.0.2,)" );
+    }
+
+    /**
+     * Verify that a plugin class/resource can be loaded from the plugin realm, also during the site lifecycle.
+     */
+    public void testit()
+        throws Exception
+    {
+        File testDir = ResourceExtractor.simpleExtractResources( getClass(), "/mng-2693" );
+        Verifier verifier = new Verifier( testDir.getAbsolutePath() );
+        verifier.setAutoclean( false );
+        verifier.deleteDirectory( "target" );
+        verifier.executeGoal( "pre-site" );
+        verifier.verifyErrorFreeLog();
+        verifier.resetStreams();
+
+        Properties pclProps = verifier.loadProperties( "target/pcl.properties" );
+        assertNotNull( pclProps.getProperty( "org.apache.maven.plugin.coreit.ClassA" ) );
+        assertNotNull( pclProps.getProperty( "org.apache.maven.plugin.coreit.ClassB" ) );
+        assertNotNull( pclProps.getProperty( "org.apache.maven.plugin.coreit.SomeClass" ) );
+        assertNotNull( pclProps.getProperty( "org/apache/maven/plugin/coreit/a.properties" ) );
+        assertEquals( "1", pclProps.getProperty( "org/apache/maven/plugin/coreit/a.properties.count" ) );
+        assertNotNull( pclProps.getProperty( "org/apache/maven/plugin/coreit/b.properties" ) );
+        assertEquals( "1", pclProps.getProperty( "org/apache/maven/plugin/coreit/b.properties.count" ) );
+        assertNotNull( pclProps.getProperty( "org/apache/maven/plugin/coreit/it.properties" ) );
+        assertEquals( "2", pclProps.getProperty( "org/apache/maven/plugin/coreit/it.properties.count" ) );
+
+        Properties tcclProps = verifier.loadProperties( "target/tccl.properties" );
+        assertEquals( pclProps, tcclProps );
+    }
+
+}
diff --git a/its/core-it-suite/src/test/resources/mng-2693/pom.xml b/its/core-it-suite/src/test/resources/mng-2693/pom.xml
new file mode 100644
index 0000000000..d2355723ab
--- /dev/null
+++ b/its/core-it-suite/src/test/resources/mng-2693/pom.xml
@@ -0,0 +1,58 @@
+<?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.mng2693</groupId>
+  <artifactId>test</artifactId>
+  <version>1.0</version>
+
+  <name>Maven Integration Test :: MNG-2693</name> 
+  <description>
+    Verify that a plugin class/resource can be loaded from the plugin realm, also during the site lifecycle.
+  </description>
+  
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.its.plugins</groupId>
+        <artifactId>maven-it-plugin-class-loader</artifactId>
+        <version>2.1-SNAPSHOT</version>
+        <executions>
+          <execution>
+            <id>load</id>
+            <phase>pre-site</phase>
+            <configuration>
+              <classNames>org.apache.maven.plugin.coreit.ClassA,org.apache.maven.plugin.coreit.ClassB,org.apache.maven.plugin.coreit.SomeClass</classNames>
+              <resourcePaths>org/apache/maven/plugin/coreit/a.properties,org/apache/maven/plugin/coreit/b.properties,org/apache/maven/plugin/coreit/it.properties</resourcePaths>
+              <pluginClassLoaderOutput>target/pcl.properties</pluginClassLoaderOutput>
+              <contextClassLoaderOutput>target/tccl.properties</contextClassLoaderOutput>
+            </configuration>
+            <goals>
+              <goal>load</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>