diff --git a/Kieker.WebGUI/nb-configuration.xml b/Kieker.WebGUI/nb-configuration.xml
index 8e1e369baf7949e4d6882a1b70727283ec5e864f..fb9db666b7d5e9b9bd258117869227c3c34cff93 100644
--- a/Kieker.WebGUI/nb-configuration.xml
+++ b/Kieker.WebGUI/nb-configuration.xml
@@ -14,5 +14,7 @@ That way multiple projects can share the same settings (useful for formatting ru
 Any value defined here will override the pom.xml file value but is only applicable to the current project.
 -->
         <netbeans.checkstyle.format>true</netbeans.checkstyle.format>
+        <netbeans.hint.jdkPlatform>JDK_1.6</netbeans.hint.jdkPlatform>
+        <org-netbeans-modules-projectapi.jsf_2e_language>Facelets</org-netbeans-modules-projectapi.jsf_2e_language>
     </properties>
 </project-shared-configuration>
diff --git a/Kieker.WebGUI/src/main/java/kieker/webgui/common/PluginFinder.java b/Kieker.WebGUI/src/main/java/kieker/webgui/common/PluginFinder.java
index 31ddcd9c50dc2a21b0f1540b027f54b1dad5c129..6296d9c66463cd4385bde3d0ad0a249112e323cd 100644
--- a/Kieker.WebGUI/src/main/java/kieker/webgui/common/PluginFinder.java
+++ b/Kieker.WebGUI/src/main/java/kieker/webgui/common/PluginFinder.java
@@ -87,18 +87,18 @@ public final class PluginFinder {
 					/* Ignore error. */
 				}
 			}
-			jarFile.close();
+			//jarFile.close();
 			return result;
 		} catch (final IOException ex) {
 			ex.printStackTrace();
 		} finally {
-			try {
+			/*try {
 				if (classLoader != null) {
 					classLoader.close();
 				}
 			} catch (IOException ex) {
 				ex.printStackTrace();
-			}
+			}*/
 		}
 		return null;
 	}