Eem..can some please helpme out here...
I was tryin to do some back end image processing by applying some filtering to my image in wicket..there is a static utility class with this basic routines:
public static WebResource adjustImage(URL imageURL, String hex){
BufferedDynamicImageResource bimg = new BufferedDynamicImageResource();
try {
BufferedImage nimg = ImageIO.read(imageURL.openStream());
ImageFilter colorfilter = new BiasSwapFilter(hex);
final Image img = createImage(new FilteredImageSource(nimg.getSource(),
colorfilter));
return new RenderedDynamicImageResource(img.getWidth(null), img.getHeight(null)) {
protected boolean render(Graphics2D graphics2D) {
graphics2D.drawImage(img,0,0,null);
return true;
}
};
} catch (IOException ex) {
ex.printStackTrace();
}
return bimg;
}
public static Image createImage(FilteredImageSource filteredImageSource) {
return Toolkit.getDefaultToolkit().createImage(filteredImageSource);
}
ANyway while running to see my output, wicket gave me this error....i just can seem to understand......
WicketMessage: Internal error cloning object. Make sure all dependent objects implement Serializable. Class: net.cowblock.dabar.pages.StartPage
Root cause:
java.io.NotSerializableException:
sun.awt.image.ToolkitImage
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1149)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1502)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1467)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java
:1385)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1143)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1502)
at java.io.ObjectOutputStream.writeSerialData
(ObjectOutputStream.java:1467)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1385)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1143)
at java.io.ObjectOutputStream.defaultWriteFields
(ObjectOutputStream.java:1502)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1467)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1385)
at java.io.ObjectOutputStream.writeObject0
(ObjectOutputStream.java:1143)
at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1331)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1139)
at java.io.ObjectOutputStream.defaultWriteFields
(ObjectOutputStream.java:1502)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1467)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1385)
at java.io.ObjectOutputStream.writeObject0
(ObjectOutputStream.java:1143)
at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1331)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1139)
at java.io.ObjectOutputStream.defaultWriteFields
(ObjectOutputStream.java:1502)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1467)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1385)
at java.io.ObjectOutputStream.writeObject0
(ObjectOutputStream.java:1143)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:325)
at wicket.protocol.http.HttpSessionStore.setAttribute(HttpSessionStore.java:56)
at wicket.Session.setAttribute
(Session.java:914)
at wicket.PageMap.put(PageMap.java:519)
at wicket.Session.touch(Session.java:720)
at wicket.Page.renderPage(Page.java:422)
at wicket.request.target.component.BookmarkablePageRequestTarget.respond
(BookmarkablePageRequestTarget.java:226)
at wicket.request.compound.DefaultResponseStrategy.respond(DefaultResponseStrategy.java:49)
at wicket.request.compound.AbstractCompoundRequestCycleProcessor.respond
(AbstractCompoundRequestCycleProcessor.java:66)
at wicket.RequestCycle.doProcessEventsAndRespond(RequestCycle.java:852)
at wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:879)
at wicket.RequestCycle.step
(RequestCycle.java:960)
at wicket.RequestCycle.steps(RequestCycle.java:1034)
at wicket.RequestCycle.request(RequestCycle.java:453)
at wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:215)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java
:362)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke
(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection
(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java
:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:626)
Complete stack:
wicket.WicketRuntimeException: Internal error cloning object. Make sure all dependent objects implement Serializable. Class:
net.cowblock.dabar.pages.StartPage
at wicket.protocol.http.HttpSessionStore.setAttribute(HttpSessionStore.java:62)
at wicket.Session.setAttribute(Session.java:914)
at wicket.PageMap.put(PageMap.java
:519)
at wicket.Session.touch(Session.java:720)
at wicket.Page.renderPage(Page.java:422)
at wicket.request.target.component.BookmarkablePageRequestTarget.respond(BookmarkablePageRequestTarget.java:226)
at wicket.request.compound.DefaultResponseStrategy.respond(DefaultResponseStrategy.java:49)
at wicket.request.compound.AbstractCompoundRequestCycleProcessor.respond(AbstractCompoundRequestCycleProcessor.java
:66)
at wicket.RequestCycle.doProcessEventsAndRespond(RequestCycle.java:852)
at wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:879)
at wicket.RequestCycle.step(RequestCycle.java:960)
at wicket.RequestCycle.steps(RequestCycle.java:1034)
at wicket.RequestCycle.request(RequestCycle.java:453)
at wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:215)
What could be wrong?
thanks
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