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  1. Wicket
  2. WICKET-1701

org.apache.wicket.markup.html.CompressedPackageResource$CompressingResourceStream.cache needs to avoid being serialized

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 1.3.4, 1.4-M3
    • wicket
    • None
    • winxp sp2 - netbeans 6.1 - tomcat 6.0.16 - java 1.6

    Description

      I have approximately this code:

      AjaxLink openCloseLink = new AjaxLink("openCloseLink");

      openCloseLink.add(new Image("icon", new CompressedResourceReference(MyComponent.class, "icon.gif")));

      The openCloseLink gets serialized during normal wicket operations,
      which causes a serialization error, see stacktrace below.

      My guess: the "cache" field needs to be marked "transient" in
      org.apache.wicket.markup.html.CompressedPackageResource$CompressingResourceStream

      ---- STACKTRACE BELOW!

      ERROR - Error serializing object class com.traversetechnologies.dhs.gmo.schemaexporter.page.TestPage [object=[Page class = com.traversetechnologies.dhs.gmo.schemaexporter.page.TestPage, id = 0, version = 0, ajax = 3]]
      org.apache.wicket.util.io.SerializableChecker$WicketNotSerializableException: Unable to serialize class: java.lang.ref.SoftReference
      Field hierarchy is:
      0 [class=com.traversetechnologies.dhs.gmo.schemaexporter.page.TestPage, path=0]
      private java.lang.Object org.apache.wicket.MarkupContainer.children [class=[Ljava.lang.Object;]
      private org.apache.wicket.util.lang.Bytes org.apache.wicket.markup.html.form.Form.maxSize[1] [class=org.apache.wicket.markup.html.form.Form, path=0:myform2]
      private java.lang.Object org.apache.wicket.MarkupContainer.children [class=[Ljava.lang.Object;]
      private java.lang.Object org.apache.wicket.markup.html.form.FormComponent.validators[1] [class=com.traversetechnologies.dhs.gmo.schemaexporter.page.component.SelectableTree, path=0:myform2:mytree]
      private java.lang.Object org.apache.wicket.MarkupContainer.children [class=[Ljava.lang.Object;]
      private java.lang.Object org.apache.wicket.MarkupContainer.children[0] [class=com.traversetechnologies.dhs.gmo.schemaexporter.page.component.SelectableTree$3, path=0:myform2:mytree:allCheck]
      final org.apache.wicket.markup.repeater.RefreshingView com.traversetechnologies.dhs.gmo.schemaexporter.page.component.SelectableTree$3.val$rowView [class=com.traversetechnologies.dhs.gmo.schemaexporter.page.component.SelectableTree$2, path=0:myform2:mytree:row]
      private java.lang.Object org.apache.wicket.MarkupContainer.children [class=[Ljava.lang.Object;]
      private java.lang.Object org.apache.wicket.MarkupContainer.children[0] [class=org.apache.wicket.markup.repeater.Item, path=0:myform2:mytree:row:19]
      private java.lang.Object org.apache.wicket.MarkupContainer.children [class=[Ljava.lang.Object;]
      java.lang.Object org.apache.wicket.Component.data[0][1][1] [class=com.traversetechnologies.dhs.gmo.schemaexporter.page.component.SelectableTree$2$2, path=0:myform2:mytree:row:19:openCloseLink]
      private java.lang.Object org.apache.wicket.MarkupContainer.children [class=org.apache.wicket.markup.html.image.Image, path=0:myform2:mytree:row:19:openCloseLink:icon]
      private final org.apache.wicket.markup.html.image.resource.LocalizedImageResource org.apache.wicket.markup.html.image.Image.localizedImageResource [class=org.apache.wicket.markup.html.image.resource.LocalizedImageResource]
      private org.apache.wicket.Resource org.apache.wicket.markup.html.image.resource.LocalizedImageResource.resource [class=org.apache.wicket.markup.html.CompressedPackageResource]
      private final org.apache.wicket.util.resource.IResourceStream org.apache.wicket.markup.html.CompressedPackageResource.resourceStream [class=org.apache.wicket.markup.html.CompressedPackageResource$1]
      private java.lang.ref.SoftReference org.apache.wicket.markup.html.CompressedPackageResource$CompressingResourceStream.cache [class=java.lang.ref.SoftReference] <----- field that is not serializable
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:349)
      at org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
      at org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
      at org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
      at org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
      at org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:395)
      at org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:395)
      at org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
      at org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:395)
      at org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:395)
      at org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:395)
      at org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:618)
      at org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:541)
      at org.apache.wicket.util.io.SerializableChecker.writeObjectOverride(SerializableChecker.java:687)
      at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322)
      at org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:127)
      at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:322)
      at org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1100)
      at org.apache.wicket.protocol.http.pagestore.AbstractPageStore.serializePage(AbstractPageStore.java:200)
      at org.apache.wicket.protocol.http.pagestore.DiskPageStore.storePage(DiskPageStore.java:814)
      at org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.put(SecondLevelCacheSessionStore.java:327)
      at org.apache.wicket.Session.requestDetached(Session.java:1391)
      at org.apache.wicket.RequestCycle.detach(RequestCycle.java:1097)
      at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1368)
      at org.apache.wicket.RequestCycle.request(RequestCycle.java:500)
      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 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
      at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
      at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
      at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
      at java.lang.Thread.run(Thread.java:619)
      Caused by: java.io.NotSerializableException: java.lang.ref.SoftReference
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156)
      at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
      at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
      at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
      at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
      at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
      at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
      at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
      at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
      at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
      at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
      at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
      at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
      at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
      at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
      at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
      at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146)
      at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
      at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
      at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
      at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146)
      at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
      at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
      at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
      at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
      at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
      at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
      at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146)
      at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
      at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
      at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
      at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146)
      at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
      at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
      at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
      at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146)
      at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
      at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
      at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
      at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
      at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
      at org.apache.wicket.util.io.IObjectStreamFactory$DefaultObjectStreamFactory$2.writeObjectOverride(IObjectStreamFactory.java:119)
      ... 23 more

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            janne Janne Hietamaki
            drafkind dave rafkind
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              Updated:
              Resolved:

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