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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=13194 refreshing JSP containing a body tag gives problem on alternate refresh Summary: refreshing JSP containing a body tag gives problem on alternate refresh Product: Tomcat 4 Version: 4.1.12 Platform: PC OS/Version: Windows NT/2K Status: NEW Severity: Major Priority: Other Component: Catalina AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] suspect that the release() is not executed after the taghandler instance's lifecycle has ended. to produce bug, 1. copy the tld file to webapp root. 2. compile the tag handler to <webapp>/WEB-INF/classes. 3. copy test.jsp to server and access it. 4. refresh the page(test.jsp), java.lang.ArrayIndexOutOfBoundsException will be encountered on alternate browser refresh. tld file ------------------ <?xml version="1.0" encoding="ISO-8859-1" ?> <!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN" "http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd";> <taglib> <tlibversion>1.0</tlibversion> <jspversion>1.1</jspversion> <shortname>test</shortname> <info> A tag library for the pagination, product of Ecquaria Technologies Pte Ltd. http://www.ecquaria.com/. </info> <tag> <name>loop</name> <tagclass>test.ArrayTag</tagclass> </tag> </taglib> Taghandler ----------------------- package test; import java.io.*; import java.util.*; import javax.servlet.http.*; import javax.servlet.jsp.*; import javax.servlet.jsp.tagext.*; public class ArrayTag extends BodyTagSupport{ private BodyContent bodyContent; private int index = -1; private final int[] data = new int[] {0, 1, 2}; ////////////////// tag support interface methods ////////////////////////// public void setBodyContent(BodyContent b) { this.bodyContent = b; } /** * Method called at start of Tag * @return either a EVAL_BODY_TAG or a SKIP_BODY */ public int doStartTag() throws javax.servlet.jsp.JspException { return EVAL_BODY_TAG; }//doStartTag //only only be called at most once public void doInitBody() throws JspException {} //@return EVAL_BODY_TAG, SKIP_BODY public int doAfterBody() throws JspException{ ++index; System.out.print("[ArrayTag] index: " + index ); System.out.println(", current data: " + data[index]); return (index<data.length-1) ? EVAL_BODY_TAG : SKIP_BODY; } /** * Method called at end of Tag * @return either EVAL_PAGE or SKIP_PAGE */ public int doEndTag() throws javax.servlet.jsp.JspException { System.out.println("in doEndTag."); return EVAL_PAGE; //to continue evaluating the rest of the JSP. }//doEndTag /** Reset the state of the tag, to enable reuse of tag handler instances. */ public void release() { this.bodyContent = null; this.index = -1; super.release(); }//release }//class ArrayTag test.jsp ----------------- <%@ taglib uri="/test.tld" prefix="test"%> <% int iii = 0; System.out.println("\n\n-------------"); %> <html> <body> hi there! <test:loop> <% System.out.println("iii: " + (iii++)); %> </test:loop> </body> </html> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
