Merge pull request #123 from k-r-g/sessionInvalidateFix

When invalidating the session make it possible to start using a new one

Author: msmith-techempower

gemini/src/main/java/com/techempower/gemini/Context.java

@@ -386,6 +386,20 @@ public Session getSession(boolean create)
     return this.session;
   }
 
+  /**
+   * In addition to invalidating the session, also sets the Context.session member variable to null
+   * so it is re-created as needed and is available for immediate use.
+   */
+  public void invalidateSession()
+  {
+    if (this.session != null)
+    {
+      this.session.invalidate();
+    }
+    // Rely on getSession() to create a new session as needed.
+    this.session = null;
+  }
+
   /**
    * Gets the full standard (non-secure) URL to the Servlet.
    */

gemini/src/main/java/com/techempower/gemini/context/SessionNamedValues.java

@@ -306,11 +306,7 @@ public SessionNamedValues clear()
    */
   public SessionNamedValues invalidate()
   {
-    final Session session = context.getSession(false);
-    if (session != null)
-    {
-      session.invalidate();
-    }
+    context.invalidateSession();
     return this;
   }