Re: Clicking add to cart repeatedly
full stack trace please? Are you using persistent sessions in tomcat? On Sat, Aug 30, 2008 at 7:54 AM, wil2008 [EMAIL PROTECTED] wrote: I am new to Wicket (but not new to HTML, Java and Spring). I tried to follow the examples in the ebook of Wicket in Action. Everything is fine until Chapter 3. I followed the cheese application which demonstrates a plain shopping cart. I compiled and ran the front page successfully (including the Index.html and Index.java, up to page 60). I could add to cart and remove successfully. So far so good. When I clicked add to cart repeatedly and slowly, it was still good. But If I clicked quickly enough, the following bunch of Unexpected RuntimeException appeared. I am not sure this is particular to this specific example or is general for other Wicket components. Did I miss something? Does anyone come across something similar? This is important if I am to propose Wicket in a serious project. Thank you very much! Wicket version: 1.3.4 output Could not deserialize object using `org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory` object factory at org.apache.wicket.util.lang.Objects.byteArrayToObject(Objects.java:411) Caused by: java.lang.ClassNotFoundException: [Lmycheese.Cheese; at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387) . /output -- View this message in context: http://www.nabble.com/Clicking-%22add-to-cart%22-repeatedly-tp19232702p19232702.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Clicking add to cart repeatedly
Sorry. The complete stack trace shown on the web page is as follows. I noted that they mirrored what have been logged by Tomcat. I was with Tomcat's default config. And I did not persist anything consciously yet. How to check if persistent sessions are in use in Tomcat? Thanks I am not sure if ClassNotFoundException is misleading somewhat. If really ClassNotFoundException, the same class should still not be found whether I repeat the click slowly or rapidly. But it seems to me that this exception appears only when I repeat the click rapidly enough. Tomcat version : 1.6.0.18 java version 1.6.0_07 Java(TM) SE Runtime Environment (build 1.6.0_07-b06) Java HotSpot(TM) 64-Bit Server VM (build 10.0-b23, mixed mode) Thank you very much Wilfred (I later assembled an application with Spring + Freemarker doing similar demonstration on the same Tomcat. When I repeatedly clicked add to cart, a cheese item did go to the cart on each click without breakdown no matter how quickly the repetition was. Weird) * Unexpected RuntimeException Root cause: java.lang.ClassNotFoundException: [Lmycheese.Cheese; at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233) at org.apache.wicket.application.DefaultClassResolver.resolveClass(DefaultClassResolver.java:103) at org.apache.wicket.util.io.IObjectStreamFactory$1.resolveClass(IObjectStreamFactory.java:87) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1575) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1624) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:480) at org.apache.wicket.Component.readObject(Component.java:4223) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at org.apache.wicket.util.lang.Objects.byteArrayToObject(Objects.java:393) at org.apache.wicket.protocol.http.pagestore.AbstractPageStore.deserializePage(AbstractPageStore.java:228) at org.apache.wicket.protocol.http.pagestore.DiskPageStore.getPage(DiskPageStore.java:706) at org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.get(SecondLevelCacheSessionStore.java:311) at org.apache.wicket.Session.getPage(Session.java:751) at org.apache.wicket.request.AbstractRequestCycleProcessor.resolveRenderedPage(AbstractRequestCycleProcessor.java:448) at org.apache.wicket.protocol.http.WebRequestCycleProcessor.resolve(WebRequestCycleProcessor.java:139) at org.apache.wicket.RequestCycle.step(RequestCycle.java:1229) at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1349) at org.apache.wicket.RequestCycle.request(RequestCycle.java:493) at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:387) at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:199) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at
Re: Clicking add to cart repeatedly
Does this happen under jetty too? To try this you can use mvn jetty:run or from your IDE run Start Regards - Cemal http://www.jWeekend.co.uk http://jWeekend.co.uk wil2008 wrote: Sorry. The complete stack trace shown on the web page is as follows. I noted that they mirrored what have been logged by Tomcat. I was with Tomcat's default config. And I did not persist anything consciously yet. How to check if persistent sessions are in use in Tomcat? Thanks I am not sure if ClassNotFoundException is misleading somewhat. If really ClassNotFoundException, the same class should still not be found whether I repeat the click slowly or rapidly. But it seems to me that this exception appears only when I repeat the click rapidly enough. Tomcat version : 1.6.0.18 java version 1.6.0_07 Java(TM) SE Runtime Environment (build 1.6.0_07-b06) Java HotSpot(TM) 64-Bit Server VM (build 10.0-b23, mixed mode) Thank you very much Wilfred (I later assembled an application with Spring + Freemarker doing similar demonstration on the same Tomcat. When I repeatedly clicked add to cart, a cheese item did go to the cart on each click without breakdown no matter how quickly the repetition was. Weird) * Unexpected RuntimeException Root cause: java.lang.ClassNotFoundException: [Lmycheese.Cheese; at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233) at org.apache.wicket.application.DefaultClassResolver.resolveClass(DefaultClassResolver.java:103) at org.apache.wicket.util.io.IObjectStreamFactory$1.resolveClass(IObjectStreamFactory.java:87) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1575) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1624) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:480) at org.apache.wicket.Component.readObject(Component.java:4223) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at org.apache.wicket.util.lang.Objects.byteArrayToObject(Objects.java:393) at org.apache.wicket.protocol.http.pagestore.AbstractPageStore.deserializePage(AbstractPageStore.java:228) at org.apache.wicket.protocol.http.pagestore.DiskPageStore.getPage(DiskPageStore.java:706) at org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.get(SecondLevelCacheSessionStore.java:311) at org.apache.wicket.Session.getPage(Session.java:751) at org.apache.wicket.request.AbstractRequestCycleProcessor.resolveRenderedPage(AbstractRequestCycleProcessor.java:448) at org.apache.wicket.protocol.http.WebRequestCycleProcessor.resolve(WebRequestCycleProcessor.java:139) at org.apache.wicket.RequestCycle.step(RequestCycle.java:1229) at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1349) at org.apache.wicket.RequestCycle.request(RequestCycle.java:493) at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:387) at
Clicking add to cart repeatedly
I am new to Wicket (but not new to HTML, Java and Spring). I tried to follow the examples in the ebook of Wicket in Action. Everything is fine until Chapter 3. I followed the cheese application which demonstrates a plain shopping cart. I compiled and ran the front page successfully (including the Index.html and Index.java, up to page 60). I could add to cart and remove successfully. So far so good. When I clicked add to cart repeatedly and slowly, it was still good. But If I clicked quickly enough, the following bunch of Unexpected RuntimeException appeared. I am not sure this is particular to this specific example or is general for other Wicket components. Did I miss something? Does anyone come across something similar? This is important if I am to propose Wicket in a serious project. Thank you very much! Wicket version: 1.3.4 output Could not deserialize object using `org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory` object factory at org.apache.wicket.util.lang.Objects.byteArrayToObject(Objects.java:411) Caused by: java.lang.ClassNotFoundException: [Lmycheese.Cheese; at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387) . /output -- View this message in context: http://www.nabble.com/Clicking-%22add-to-cart%22-repeatedly-tp19232702p19232702.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Clicking add to cart repeatedly
I have gotten ClassNotFoundException several times. I repeatedly get it with 2 browser tabs opened and accessing the same page and doing some actions on the same page. I havent received any response from the Wicket team on this yet. I have also seen it happening with pressing back and forward buttons a few times. wil2008 wrote: I am new to Wicket (but not new to HTML, Java and Spring). I tried to follow the examples in the ebook of Wicket in Action. Everything is fine until Chapter 3. I followed the cheese application which demonstrates a plain shopping cart. I compiled and ran the front page successfully (including the Index.html and Index.java, up to page 60). I could add to cart and remove successfully. So far so good. When I clicked add to cart repeatedly and slowly, it was still good. But If I clicked quickly enough, the following bunch of Unexpected RuntimeException appeared. I am not sure this is particular to this specific example or is general for other Wicket components. Did I miss something? Does anyone come across something similar? This is important if I am to propose Wicket in a serious project. Thank you very much! Wicket version: 1.3.4 output Could not deserialize object using `org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory` object factory at org.apache.wicket.util.lang.Objects.byteArrayToObject(Objects.java:411) Caused by: java.lang.ClassNotFoundException: [Lmycheese.Cheese; at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387) . /output -- View this message in context: http://www.nabble.com/Clicking-%22add-to-cart%22-repeatedly-tp19232702p19239430.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
