diff --git a/maven-plugin-tools-java/src/test/java/org/apache/maven/tools/plugin/extractor/javadoc/JavaMojoDescriptorExtractorTest.java b/maven-plugin-tools-java/src/test/java/org/apache/maven/tools/plugin/extractor/javadoc/JavaMojoDescriptorExtractorTest.java
index c5a09d5..6989cd7 100644
--- a/maven-plugin-tools-java/src/test/java/org/apache/maven/tools/plugin/extractor/javadoc/JavaMojoDescriptorExtractorTest.java
+++ b/maven-plugin-tools-java/src/test/java/org/apache/maven/tools/plugin/extractor/javadoc/JavaMojoDescriptorExtractorTest.java
@@ -249,4 +249,12 @@ public class JavaMojoDescriptorExtractorTest
         assertNull( results );
     }
 
+    public void testEnumWithRegexPattern()
+        throws Exception
+    {
+        List<MojoDescriptor> results = extract( "MPLUGIN-290" );
+
+        assertNull( results );
+    }
+
 }
diff --git a/maven-plugin-tools-java/src/test/resources/MPLUGIN-290/Test.java b/maven-plugin-tools-java/src/test/resources/MPLUGIN-290/Test.java
new file mode 100644
index 0000000..3c3b5c6
--- /dev/null
+++ b/maven-plugin-tools-java/src/test/resources/MPLUGIN-290/Test.java
@@ -0,0 +1,32 @@
+/*
+ * 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 java.util.regex.Pattern;
+
+public enum Test
+{
+
+    Test( Pattern.compile( "a" ) );
+
+    private Test( Pattern p )
+    {
+
+    }
+
+}
diff --git a/maven-plugin-tools-java/src/test/resources/MPLUGIN-290/plugin-expected.xml b/maven-plugin-tools-java/src/test/resources/MPLUGIN-290/plugin-expected.xml
new file mode 100644
index 0000000..4234096
--- /dev/null
+++ b/maven-plugin-tools-java/src/test/resources/MPLUGIN-290/plugin-expected.xml
@@ -0,0 +1,33 @@
+<?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.
+  -->
+
+<plugin>
+  <name></name>
+  <description></description>
+  <groupId></groupId>
+  <artifactId></artifactId>
+  <version></version>
+  <goalPrefix>test</goalPrefix>
+  <isolatedRealm>false</isolatedRealm>
+  <inheritedByDefault>true</inheritedByDefault>
+  <mojos/>
+  <dependencies/>
+</plugin>
\ No newline at end of file