DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT <http://nagoya.apache.org/bugzilla/show_bug.cgi?id=12519>. ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND INSERTED IN THE BUG DATABASE.
http://nagoya.apache.org/bugzilla/show_bug.cgi?id=12519 Optional package for Validation framework is not thread safe Summary: Optional package for Validation framework is not thread safe Product: Struts Version: 1.0.2 Final Platform: Other OS/Version: Other Status: NEW Severity: Major Priority: Other Component: Validator Framework AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] Symptoms: Hanging threads using up 100% of the cpu and the following stack trace java.lang.ArrayIndexOutOfBoundsException: -30020 at org.apache.regexp.RE.matchNodes(RE.java(Compiled Code)) at org.apache.regexp.RE.matchNodes(RE.java(Compiled Code)) at org.apache.regexp.RE.matchNodes(RE.java(Compiled Code)) at org.apache.regexp.RE.matchNodes(RE.java(Compiled Code)) at org.apache.regexp.RE.matchNodes(RE.java(Compiled Code)) at org.apache.regexp.RE.matchNodes(RE.java(Compiled Code)) at org.apache.regexp.RE.match(RE.java(Compiled Code)) at org.apache.regexp.RE.match(RE.java(Compiled Code)) at org.apache.regexp.RE.match(RE.java:1468) at org.apache.regexp.RE.match(RE.java:1561) at com.wintecinc.struts.validation.GenericValidator.matchRegexp (GenericValidator.java:97) Explaination of Issue: The optional validation framework from http://home.earthlink.net/~dwinterfeldt/contact.html uses the jakarta regex package. The RE.class and RECompiler.class are not thread safe and since the validation occurs within a servlet we would expect to see issues. We did not see these issues on every call to the validation framework, only when we were running load tests against the system. Resolution: Changing the matchRegexp method in the GenericValidator class to be synchronized fixed the issues we say with affecting performance noticably. package com.wintecinc.struts.validation; public class GenericValidator implements Serializable { ... public static synchronized boolean matchRegexp(String value, String regexp) throws RESyntaxException { Note: This should be fixed with the latest version of the Validation framework because it uses the Perl5Util.class in the ORO package for regular expression matching which is thread safe according to the api documentation. -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
