Merge pull request #703 from mattrpav/AMQ-8358

[AMQ-8358] Update xstream to 1.4.18
diff --git a/activemq-stomp/src/test/java/org/apache/activemq/transport/stomp/StompTest.java b/activemq-stomp/src/test/java/org/apache/activemq/transport/stomp/StompTest.java
index 5e96385..0404762 100644
--- a/activemq-stomp/src/test/java/org/apache/activemq/transport/stomp/StompTest.java
+++ b/activemq-stomp/src/test/java/org/apache/activemq/transport/stomp/StompTest.java
@@ -138,6 +138,7 @@
         connection.start();
         xstream = new XStream();
         xstream.processAnnotations(SamplePojo.class);
+        xstream.allowTypes(new Class[] { SamplePojo.class });
     }
 
     @Override
diff --git a/pom.xml b/pom.xml
index 61027a4..6abcb95 100644
--- a/pom.xml
+++ b/pom.xml
@@ -104,7 +104,7 @@
     <velocity-version>2.3</velocity-version>
     <xalan-version>2.7.2</xalan-version>
     <xpp3-version>1.1.4c</xpp3-version>
-    <xstream-version>1.4.17</xstream-version>
+    <xstream-version>1.4.18</xstream-version>
     <xbean-version>4.20</xbean-version>
     <xerces-version>2.12.0</xerces-version>
     <jaxb-basics-version>0.6.4</jaxb-basics-version>