Merge pull request #276 from apache/fix/maven-war-plugin

Uses maven-war-plugin compatible with JDK17
diff --git a/pom.xml b/pom.xml
index e07dc4d..ae84784 100644
--- a/pom.xml
+++ b/pom.xml
@@ -212,6 +212,11 @@
                         <skipRuntimeScope>true</skipRuntimeScope>
                     </configuration>
                 </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-war-plugin</artifactId>
+                    <version>3.4.0</version>
+                </plugin>
             </plugins>
         </pluginManagement>