adding tomcat websocket api
diff --git a/pom.xml b/pom.xml
index 79f9d79..1a1e5a2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -127,6 +127,7 @@
                   <exclude>*:*:sources</exclude>
                   <exclude>*:geronimo-jsp*</exclude>
                   <exclude>*:tomcat-servlet-api*</exclude>
+                  <exclude>*:tomcat-websocket-api*</exclude>
                   <exclude>*:tomcat-el-api*</exclude>
                 </excludes>
               </artifactSet>
@@ -552,6 +553,19 @@
     </dependency>
     <dependency>
       <groupId>org.apache.tomcat</groupId>
+      <artifactId>tomcat-websocket-api</artifactId>
+      <version>${tomcat.version}</version>
+      <classifier>sources</classifier>
+      <optional>true</optional>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.tomcat</groupId>
+      <artifactId>tomcat-websocket-api</artifactId>
+      <version>${tomcat.version}</version>
+      <optional>true</optional>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.tomcat</groupId>
       <artifactId>tomcat-servlet-api</artifactId>
       <version>${tomcat.version}</version>
       <classifier>sources</classifier>