problem publishing to nexus, so switch to SNAPSHOT: '[ERROR] Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.7:deploy (default-deploy) on project multiple: Failed to deploy artifacts: Could not transfer artifact org.jboss.tools.target-platforms.jbdevstudio:multiple:pom:4.21.3.Final from/to jboss-releases-repository (https://repository.jboss.org/nexus/content/repositories/releases/): Failed to transfer file: https://repository.jboss.org/nexus/content/repositories/releases/org/jboss/tools/target-platforms/jbdevstudio/multiple/4.21.3.Final/multiple-4.21.3.Final.pom. Return code is: 502, ReasonPhrase:Proxy Error. -> [Help 1]' (JBIDE-13232)