BAEL-5214: Upgrade xstream and jettison versions (#11332)

xstream/pom.xml

@@ -30,8 +30,8 @@
     </dependencies>
 
     <properties>
-        <xstream.version>1.4.10</xstream.version>
-        <jettison.version>1.3.8</jettison.version>
+        <xstream.version>1.4.18</xstream.version>
+        <jettison.version>1.4.1</jettison.version>
     </properties>
 
 </project>

xstream/src/main/java/com/baeldung/initializer/SimpleXstreamInitializer.java

@@ -7,7 +7,11 @@ import com.thoughtworks.xstream.io.json.JsonHierarchicalStreamDriver;
 public class SimpleXstreamInitializer {
 
     public XStream getXstreamInstance() {
-        return new XStream();
+        XStream xstream = new XStream();
+        xstream.allowTypesByWildcard(new String[]{
+                "com.baeldung.**"
+        });
+        return xstream;
     }
 
     public XStream getXstreamJettisonMappedInstance() {

xstream/src/test/java/com/baeldung/rce/XStreamBasicsUnitTest.java

@@ -21,6 +21,7 @@ public final class XStreamBasicsUnitTest {
     public void before() {
         xstream = new XStream();
         xstream.alias("person", Person.class);
+        xstream.allowTypes(new Class<?>[] { Person.class });
     }
 
     @Test