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=12439>. 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=12439 HttpConnector problem under jdk1.4.1-rc and catalina 4.04 Summary: HttpConnector problem under jdk1.4.1-rc and catalina 4.04 Product: Tomcat 4 Version: 4.0.4 Final Platform: Other OS/Version: Windows NT/2K Status: NEW Severity: Normal Priority: Other Component: Catalina AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] Hi Nasser Matoorian, Thank you for using our bug submit page. It looks like the error is being generated in third party software. See the below link from the apache website: http://jakarta.apache.org/tomcat/tomcat-4.0-doc/catalina/docs/api/org/apache/catalina/connector/http10/HttpConnector.html Please redirect this request to the apache team at http://jakarta.apache.org/site/bugs.html Regards, Nathanael ----------------- Original Bug Report------------------- category : java release : hopper-rc subcategory : classes_net type : bug synopsis : HttpConnector[8080] No processor available, rejecting this connection description : FULL PRODUCT VERSION : J2SE :j2sdk1.4.1-rc FULL OPERATING SYSTEM VERSION : Window 2000 professional sp2 A DESCRIPTION OF THE PROBLEM : HTTP comunication between applet and servlet, occurs occasionally. REGRESSION. Last worked in version 1.4 STEPS TO FOLLOW TO REPRODUCE THE PROBLEM : 1.we use the following java class for comunicating between applet and servlet: package jsystems.servlet; import java.net.*; import java.util.*; import java.io.*; public class HttpMessage { URL servlet = null; String args = null; public HttpMessage(URL servlet) { this.servlet = servlet; } public HttpMessage() { } //------------------------------------------------------------------------------ //Performs a GET request to the previously given servlet //with no query string. public InputStream sendGetMessage() throws IOException{ return sendGetMessage(null); } //------------------------------------------------------------------------------ //Performs a GET request to the previously given servlet. //Builds a query string from the supplied Prperties list. public InputStream sendGetMessage(Properties args) throws IOException{ String argString = "";//default if( args!= null){ argString = "?" + toEncodedString(args); } URL url = new URL(servlet.toExternalForm() + argString); //trun off caching URLConnection con = url.openConnection(); con.setUseCaches(false); return con.getInputStream(); } //------------------------------------------------------------------------------ //Performs a POST request to the previously given servlet //with no query string. public InputStream sendPostMessage() throws IOException{ return sendPostMessage(null); } //------------------------------------------------------------------------------ //Performs a POST request to the previously given servlet. //Builds a query string from the supplied Prperties list. public InputStream sendPostMessage(Properties args) throws IOException{ String argString = "";//default if( args!= null){ argString = toEncodedString(args); // notice no "?" } URL url = new URL(servlet.toExternalForm() + argString); URLConnection con = url.openConnection(); //Prepare for both input and output con.setDoInput(true); con.setDoOutput(true); //trun off caching con.setUseCaches(false); //Work round a netscape bug con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); //Write the arguments as post data DataOutputStream out = new DataOutputStream(con.getOutputStream()); out.flush(); out.close(); return con.getInputStream(); } //------------------------------------------------------------------------------ //Uploads a serialized object with a POST request. //Sets the content type to java-internal/classname. public InputStream sendPostMessage(Serializable obj) throws IOException{ URLConnection con = servlet.openConnection(); //Prepare for both input and output con.setDoInput(true); con.setDoOutput(true); //trun off caching con.setUseCaches(false); //Set the content type to be java-internal/classname con.setRequestProperty("Content-Type", "java-internal/" + obj.getClass().getName()); //Write the serialized object as post data ObjectOutputStream out = new ObjectOutputStream(con.getOutputStream()); out.writeObject(obj); out.flush(); out.close(); return con.getInputStream(); } //------------------------------------------------------------------------------ //Converts a Properties list to a URL-encoded query string private String toEncodedString(Properties args){ StringBuffer buff = new StringBuffer(); Enumeration names = args.propertyNames(); while (names.hasMoreElements()){ String name = (String) names.nextElement(); String value = args.getProperty(name); buff.append(URLEncoder.encode(name) + "=" + URLEncoder.encode(value)); if(names.hasMoreElements()) buff.append("&"); } return buff.toString(); } //------------------------------------------------------------------------------ } 2. The receiving servlet gets the serialized objects using the following get / post : public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //doGet(request, response); //response to indicate the result of the transaction if(handler==null)handler=new AppointmentHandler(); ObjectOutputStream out = new ObjectOutputStream(response.getOutputStream()); try{ //get data ObjectInputStream in = new ObjectInputStream(request.getInputStream()); HashMap hm = (HashMap)in.readObject(); //... out.writeObject(new Integer(app_id)); } }catch(Exception e){ out.writeObject(new Boolean(false)); e.printStackTrace(); } } 3. the servlet end occasionaly refuses connection in j2sdk1.4.1-rc: HttpConnector[8080] No processor available, rejecting this connection EXPECTED VERSUS ACTUAL BEHAVIOR : connection refused with a message: HttpConnector[8080] No processor available, rejecting this connection ERROR MESSAGES/STACK TRACES THAT OCCUR : HttpConnector[8080] No processor available, rejecting this connection REPRODUCIBILITY : This bug can be reproduced occasionally. ---------- BEGIN SOURCE ---------- Applet to Servlet communication. Applet side: package jsystems.servlet; import java.net.*; import java.util.*; import java.io.*; public class HttpMessage { URL servlet = null; String args = null; public HttpMessage(URL servlet) { this.servlet = servlet; } public HttpMessage() { } //------------------------------------------------------------------------------ //Performs a GET request to the previously given servlet //with no query string. public InputStream sendGetMessage() throws IOException{ return sendGetMessage(null); } //------------------------------------------------------------------------------ //Performs a GET request to the previously given servlet. //Builds a query string from the supplied Prperties list. public InputStream sendGetMessage(Properties args) throws IOException{ String argString = "";//default if( args!= null){ argString = "?" + toEncodedString(args); } URL url = new URL(servlet.toExternalForm() + argString); //trun off caching URLConnection con = url.openConnection(); con.setUseCaches(false); return con.getInputStream(); } //------------------------------------------------------------------------------ //Performs a POST request to the previously given servlet //with no query string. public InputStream sendPostMessage() throws IOException{ return sendPostMessage(null); } //------------------------------------------------------------------------------ //Performs a POST request to the previously given servlet. //Builds a query string from the supplied Prperties list. public InputStream sendPostMessage(Properties args) throws IOException{ String argString = "";//default if( args!= null){ argString = toEncodedString(args); // notice no "?" } URL url = new URL(servlet.toExternalForm() + argString); URLConnection con = url.openConnection(); //Prepare for both input and output con.setDoInput(true); con.setDoOutput(true); //trun off caching con.setUseCaches(false); //Work round a netscape bug con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); //Write the arguments as post data DataOutputStream out = new DataOutputStream(con.getOutputStream()); out.flush(); out.close(); return con.getInputStream(); } //------------------------------------------------------------------------------ //Uploads a serialized object with a POST request. //Sets the content type to java-internal/classname. public InputStream sendPostMessage(Serializable obj) throws IOException{ URLConnection con = servlet.openConnection(); //Prepare for both input and output con.setDoInput(true); con.setDoOutput(true); //trun off caching con.setUseCaches(false); //Set the content type to be java-internal/classname con.setRequestProperty("Content-Type", "java-internal/" + obj.getClass().getName()); //Write the serialized object as post data ObjectOutputStream out = new ObjectOutputStream(con.getOutputStream()); out.writeObject(obj); out.flush(); out.close(); return con.getInputStream(); } //------------------------------------------------------------------------------ //Converts a Properties list to a URL-encoded query string private String toEncodedString(Properties args){ StringBuffer buff = new StringBuffer(); Enumeration names = args.propertyNames(); while (names.hasMoreElements()){ String name = (String) names.nextElement(); String value = args.getProperty(name); buff.append(URLEncoder.encode(name) + "=" + URLEncoder.encode(value)); if(names.hasMoreElements()) buff.append("&"); } return buff.toString(); } //------------------------------------------------------------------------------ } Servlet side method: public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //doGet(request, response); //response to indicate the result of the transaction if(handler==null)handler=new AppointmentHandler(); ObjectOutputStream out = new ObjectOutputStream(response.getOutputStream()); try{ //get data ObjectInputStream in = new ObjectInputStream(request.getInputStream()); HashMap hm = (HashMap)in.readObject(); //... out.writeObject(new Integer(app_id)); } }catch(Exception e){ out.writeObject(new Boolean(false)); e.printStackTrace(); } } ---------- END SOURCE ---------- CUSTOMER WORKAROUND : use j2sdk1.4.0 instead of j2sdk1.4.1-rc workaround : suggested_val : cust_name : Nasser Matoorian cust_email : [EMAIL PROTECTED] jdcid : keyword : webbug company : Thames Valley University hardware : x86 OSversion : windows_2000 bugtraqID : 0 dateCreated : 2002-09-02 03:48:32.7 dateEvaluated : 2002-09-03 16:17:51.58 -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
