[JENKINS-31220] Fix upgrade from a version prior to 1.6.2

jenkinsci · Oct 28, 2015 · fd3af57 · fd3af57
1 parent cd90bcf
commit fd3af57
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/main/java/com/cloudbees/jenkins/plugins/docker_build_env/Docker.java b/src/main/java/com/cloudbees/jenkins/plugins/docker_build_env/Docker.java
@@ -8,6 +8,8 @@
 import hudson.model.TaskListener;
 import hudson.util.ArgumentListBuilder;
 import org.apache.commons.io.LineIterator;
+import org.apache.commons.lang.StringUtils;
+
 import org.jenkinsci.plugins.docker.commons.credentials.DockerRegistryEndpoint;
 import org.jenkinsci.plugins.docker.commons.credentials.DockerServerEndpoint;
 import org.jenkinsci.plugins.docker.commons.credentials.KeyMaterial;
@@ -173,7 +175,7 @@ public String runDetached(String image, String workdir, Map<String, String> volu
             args.add("--link", link.getKey() + ":" + link.getValue());
         }
 
-        if (net.length() > 0) {
+        if (StringUtils.isNotBlank(net)) {
             args.add("--net", net);
         }