diff --git a/pom.xml b/pom.xml
index 7fa2a74d99..24c24891b4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -16,8 +16,8 @@
 		<spring.version>3.1.1.RELEASE</spring.version>
 		<junit.version>4.11</junit.version>
 
-		<gpg.skip>trye</gpg.skip>
-                <javadoc.skip>true</javadoc.skip>
+		<gpg.skip>false</gpg.skip>
+                <javadoc.skip>false</javadoc.skip>
 
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<jdk.version>1.6</jdk.version>
diff --git a/src/main/java/com/alibaba/druid/filter/FilterManager.java b/src/main/java/com/alibaba/druid/filter/FilterManager.java
index 787ca7a4ac..cfef0f755b 100644
--- a/src/main/java/com/alibaba/druid/filter/FilterManager.java
+++ b/src/main/java/com/alibaba/druid/filter/FilterManager.java
@@ -64,6 +64,10 @@ public class FilterManager {
     }
 
     private static void loadFilterConfig(Properties filterProperties, ClassLoader classLoader) throws IOException {
+        if (classLoader == null) {
+            return;
+        }
+        
         for (Enumeration<URL> e = classLoader.getResources("META-INF/druid-filter.properties"); e.hasMoreElements();) {
             URL url = e.nextElement();