[NPANDAY-227] make sure includes/excludes are null when empty
git-svn-id: https://svn.apache.org/repos/asf/incubator/npanday/trunk@1619649 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/plugins/maven-resgen-plugin/src/main/java/npanday/plugin/resgen/ExistingResxGenerator.java b/plugins/maven-resgen-plugin/src/main/java/npanday/plugin/resgen/ExistingResxGenerator.java
index 2569cbb..21b3be7 100644
--- a/plugins/maven-resgen-plugin/src/main/java/npanday/plugin/resgen/ExistingResxGenerator.java
+++ b/plugins/maven-resgen-plugin/src/main/java/npanday/plugin/resgen/ExistingResxGenerator.java
@@ -163,8 +163,8 @@
for (Resource resource : resources) {
String sourceDirectory = resource.getDirectory();
- String includes = StringUtils.join(resource.getIncludes().iterator(), ",");
- String excludes = StringUtils.join(resource.getExcludes().iterator(), ",");
+ String includes = !resource.getIncludes().isEmpty() ? StringUtils.join(resource.getIncludes().iterator(), ",") : null;
+ String excludes = !resource.getExcludes().isEmpty() ? StringUtils.join(resource.getExcludes().iterator(), ",") : null;
File directory = new File(sourceDirectory);
if (directory.exists()) {
