Formatter instances need to be closed

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1406436 13f79535-47bb-0310-9956-ffa450edef68

httpclient-cache/src/main/java/org/apache/http/impl/client/cache/BasicIdGenerator.java

@@ -72,6 +72,7 @@ class BasicIdGenerator {
         buffer.append('.');
         Formatter formatter = new Formatter(buffer, Locale.US);
         formatter.format("%1$016x-%2$08x", this.count, rndnum);
+        formatter.close();
         buffer.append('.');
         buffer.append(this.hostname);
     }

httpclient/src/main/java/org/apache/http/impl/auth/DigestScheme.java

@@ -314,6 +314,7 @@ public class DigestScheme extends RFC2617Scheme {
         StringBuilder sb = new StringBuilder(256);
         Formatter formatter = new Formatter(sb, Locale.US);
         formatter.format("%08x", nounceCount);
+        formatter.close();
         String nc = sb.toString();
 
         if (cnonce == null) {