Fix MavenPrepareCommand

Author: rnc

java-components/build-request-processor/src/main/java/com/redhat/hacbs/container/build/preprocessor/maven/MavenPrepareCommand.java

@@ -32,6 +32,8 @@
 import io.quarkus.logging.Log;
 import picocli.CommandLine;
 
+import static org.apache.commons.lang3.StringUtils.isNotEmpty;
+
 /**
  * A simple preprocessor that attempts to fix problematic maven build files.
  * <p>
@@ -128,13 +130,14 @@ private boolean handlePlugins(List<Plugin> plugins, boolean topLevel)
 
         if (disabledPlugins != null) {
             for (String s : disabledPlugins) {
-                String[] ga = s.split(":");
+                if (isNotEmpty(s)) {
+                    String[] ga = s.split(":");
 
-                if (ga.length != 2) {
-                    throw new IOException("Error parsing groupId/artifactId:  " + s);
+                    if (ga.length != 2) {
+                        throw new IOException("Error parsing groupId/artifactId:  " + s);
+                    }
+                    toRemove.add(new PluginInfo(ga[0], ga[1]));
                 }
-
-                toRemove.add(new PluginInfo(ga[0], ga[1]));
             }
         }