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http://issues.apache.org/bugzilla/show_bug.cgi?id=37516 Summary: A committed HttpServletResponse is passed to the doGet() method Product: Tomcat 5 Version: 5.5.9 Platform: All OS/Version: All Status: NEW Severity: critical Priority: P2 Component: Servlet & JSP API AssignedTo: tomcat-dev@jakarta.apache.org ReportedBy: [EMAIL PROTECTED] CC: [EMAIL PROTECTED] I'm getting a committed HttpServletResponse object in my doGet() without executing any command that could change its state to committed. Some of the times this error has occurred I noticed that the response was committed even before the first command in the doGet method. I don't get this behavior on Sun Java System Application Server 8.1. I got this behavior on Tomcat 5.5.7, 5.5.9, 5.5.12 both on Windows XP and Linux (Fedora 2). I'm sending a brief code to simulate this error (two servlets and the descriptor. Please note that in order to test this code you may have to change the port number in the HTML generated in Test.java. Also, the generated page uses a HTML Header to automatically refreshs the page every second to spare the person who's testing to press F5. But one can erase this Refresh-Header and do the refreshs by pressing F5 and after some refreshs the error will occur). //*********** web.xml *************** <?xml version="1.0" encoding="UTF-8"?> <web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd";> <servlet> <servlet-name>Test</servlet-name> <servlet-class>Test</servlet-class> </servlet> <servlet> <servlet-name>Image</servlet-name> <servlet-class>Image</servlet-class> </servlet> <servlet-mapping> <servlet-name>Test</servlet-name> <url-pattern>/test</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>Image</servlet-name> <url-pattern>*.jpg</url-pattern> </servlet-mapping> <session-config> <session-timeout> 30 </session-timeout> </session-config> </web-app> // ******************* Test.java *********************************** // Note: if you use a port number other than 8080 please change the line out.println("<img alt=\"image\" src=\"http://localhost:8080/... in Test.java import java.io.*; import java.net.*; import javax.servlet.*; import javax.servlet.http.*; /** * * @author Adriano * @version */ public class Test extends HttpServlet { protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { if (response.isCommitted()) { System.out.println("Response is committed in Test.processRequest"); } response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); out.println("<html>"); out.println("<head>"); out.println("<meta http-equiv=\"Refresh\" content=\"1\">"); out.println("<title>Servlet Test</title>"); out.println("</head>"); out.println("<body>"); out.println("<img alt=\"image\" src=\"http://localhost:8080/BugTest/image.jpg\"";); out.println("</body>"); out.println("</html>"); out.close(); } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } } //******************************* Image.java ************************* import java.awt.Font; import java.awt.Graphics2D; import java.awt.image.BufferedImage; import java.io.*; import java.util.Iterator; import javax.imageio.ImageIO; import javax.imageio.ImageWriter; import javax.imageio.stream.ImageOutputStream; import javax.servlet.*; import javax.servlet.http.*; /** * * @author Adriano * @version */ public class Image extends HttpServlet { protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { if (response.isCommitted()) { System.out.println("Response is committed in Image.processRequest"); } response.setContentType("image/jpg"); response.setBufferSize(8192); OutputStream out = response.getOutputStream(); //Generates an image BufferedImage image = new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB); Graphics2D graphics = image.createGraphics(); Font font = new Font("Arial", Font.BOLD, 20); graphics.setFont(font); graphics.drawString("Test", 20, 20); Iterator writers = ImageIO.getImageWritersByFormatName("jpg"); ImageWriter writer = (ImageWriter)writers.next(); ImageOutputStream imageOutput = ImageIO.createImageOutputStream(out); writer.setOutput(imageOutput); writer.write(image); writer.dispose(); out.close(); response.flushBuffer(); } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } } -- Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
![http://localhost:8080/BugTest/image.jpg\""](http://localhost:8080/BugTest/image.jpg\""){kind=link}