Make EhCache an optional dependency.

gregturn · gregturn · commit d43b25f475d4 · 2023-01-25T09:30:40.000-06:00
Resolves #1323.
diff --git a/spring-ws-security/pom.xml b/spring-ws-security/pom.xml
@@ -58,6 +58,7 @@
                     <artifactId>slf4j-api</artifactId>
                 </exclusion>
             </exclusions>
+            <optional>true</optional>
         </dependency>
 
         <dependency>
