Fix additional potential leak

Author: markt-asf

java/org/apache/catalina/startup/ContextConfig.java

@@ -1749,6 +1749,8 @@ private WebXml getDefaultWebXmlFragment(WebXmlParser webXmlParser) {
             entry = hostWebXmlCache.get(host);
             if (entry != null && entry.getGlobalTimeStamp() == globalTimeStamp &&
                     entry.getHostTimeStamp() == hostTimeStamp) {
+                InputSourceUtil.close(globalWebXml);
+                InputSourceUtil.close(hostWebXml);
                 return entry.getWebXml();
             }