Return-Path: X-Original-To: apmail-tomcat-users-archive@www.apache.org Delivered-To: apmail-tomcat-users-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id D75BFC3B1 for ; Wed, 2 May 2012 21:19:14 +0000 (UTC) Received: (qmail 15105 invoked by uid 500); 2 May 2012 21:19:11 -0000 Delivered-To: apmail-tomcat-users-archive@tomcat.apache.org Received: (qmail 15015 invoked by uid 500); 2 May 2012 21:19:11 -0000 Mailing-List: contact users-help@tomcat.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: "Tomcat Users List" Delivered-To: mailing list users@tomcat.apache.org Received: (qmail 14931 invoked by uid 99); 2 May 2012 21:19:11 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 02 May 2012 21:19:11 +0000 X-ASF-Spam-Status: No, hits=-2.3 required=5.0 tests=RCVD_IN_DNSWL_MED,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: local policy) Received: from [216.82.250.179] (HELO mail210.messagelabs.com) (216.82.250.179) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 02 May 2012 21:19:02 +0000 X-Env-Sender: Chuck.Caldarale@unisys.com X-Msg-Ref: server-4.tower-210.messagelabs.com!1335993519!6922046!3 X-Originating-IP: [192.61.61.105] X-StarScan-Version: 6.5.5; banners=-,-,- X-VirusChecked: Checked Received: (qmail 1518 invoked from network); 2 May 2012 21:18:40 -0000 Received: from naedge.unisys.com (HELO USEA-NAEDGE2.unisys.com) (192.61.61.105) by server-4.tower-210.messagelabs.com with RC4-SHA encrypted SMTP; 2 May 2012 21:18:40 -0000 Received: from usea-nahubcas1.na.uis.unisys.com (129.224.76.114) by USEA-NAEDGE2.unisys.com (192.61.61.105) with Microsoft SMTP Server (TLS) id 8.3.83.0; Wed, 2 May 2012 16:17:47 -0500 Received: from USEA-EXCH8.na.uis.unisys.com ([129.224.76.41]) by usea-nahubcas1.na.uis.unisys.com ([129.224.76.114]) with mapi; Wed, 2 May 2012 16:17:47 -0500 From: "Caldarale, Charles R" To: Tomcat Users List Date: Wed, 2 May 2012 16:17:46 -0500 Subject: RE: Tomcat 7 - No modifications are allowed to a locked ParameterMap Thread-Topic: Tomcat 7 - No modifications are allowed to a locked ParameterMap Thread-Index: Ac0opimZkU5wQeYGS7SYtjpPeiuUxgAAhouA Message-ID: <99C8B2929B39C24493377AC7A121E21FB01986E625@USEA-EXCH8.na.uis.unisys.com> References: <4FA19F85.3000302@computer.org> In-Reply-To: <4FA19F85.3000302@computer.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Virus-Checked: Checked by ClamAV on apache.org > From: David Wall [mailto:d.wall@computer.org]=20 > Subject: Tomcat 7 - No modifications are allowed to a locked ParameterMap > May 2, 2012 1:55:03 AM org.apache.catalina.core.ApplicationDispatcher inv= oke > SEVERE: Servlet.service() for servlet jsp threw exception > java.lang.IllegalStateException: No modifications are allowed to a=20 > locked ParameterMap Both this symptom and your earlier one about creating a session after a res= ponse has been committed are representative of the kinds of errors seen whe= n a webapp stores references in an inappropriate scope. For example, keepi= ng a reference to a request or response object in a static field, a session= , or a thread-local, will often result in the wrong object being used later= on. This is especially evident under high-load situations... - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MA= TERIAL and is thus for use only by the intended recipient. If you received = this in error, please contact the sender and delete the e-mail and its atta= chments from all computers. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org For additional commands, e-mail: users-help@tomcat.apache.org