fix nexus staging

Author: bnasslahsen

pom.xml

@@ -261,6 +261,13 @@
 							<nexusUrl>https://s01.oss.sonatype.org/</nexusUrl>
 							<autoReleaseAfterClose>true</autoReleaseAfterClose>
 						</configuration>
+						<dependencies>
+							<dependency>
+								<groupId>com.thoughtworks.xstream</groupId>
+								<artifactId>xstream</artifactId>
+								<version>1.4.15</version>
+							</dependency>
+						</dependencies>
 					</plugin>
 					<plugin>
 						<artifactId>maven-release-plugin</artifactId>