[bugfix] Concatenate the mailcap files from bcmail and jakarta.mail together when shading the Uber Jar for Docker

Author: adamretter

exist-docker/pom.xml

@@ -186,7 +186,13 @@
                                 <transformer implementation="org.apache.maven.plugins.shade.resource.ApacheLicenseResourceTransformer" />
                                 <transformer implementation="org.apache.maven.plugins.shade.resource.ApacheNoticeResourceTransformer">
                                     <addHeader>false</addHeader>
-                                </transformer>&gt;
+                                </transformer>
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
+                                    <resource>META-INF/mailcap</resource>
+                                </transformer>
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
+                                    <resource>META-INF/mailcap.default</resource>
+                                </transformer>
                                 <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
                             </transformers>
                         </configuration>