My application is running in Wicket7.6 frequently logging the below error
and increasing the log file size,

 Any help?



 ERROR [org.apache.wicket.serialize.java.JavaSerializer] (default task-54)
error writing object [Page class =
com.tre.wktcommon.components.FieldSearchTField$5$1, id = 122, render count
= 1]: null: java.util.ConcurrentModificationException
at java.util.ArrayList.writeObject(ArrayList.java:766)
at sun.reflect.GeneratedMethodAccessor26.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:1028)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1496)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348)
at
org.apache.wicket.serialize.java.JavaSerializer$SerializationCheckerObjectOutputStream.writeObjectOverride(JavaSerializer.java:256)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:344)
at
org.apache.wicket.serialize.java.JavaSerializer.serialize(JavaSerializer.java:78)
at
org.apache.wicket.pageStore.AbstractPageStore.serializePage(AbstractPageStore.java:133)
at
org.apache.wicket.pageStore.DefaultPageStore.createSerializedPage(DefaultPageStore.java:281)
at
org.apache.wicket.pageStore.DefaultPageStore.prepareForSerialization(DefaultPageStore.java:137)
at
org.apache.wicket.page.PageStoreManager$SessionEntry.writeObject(PageStoreManager.java:251)
at sun.reflect.GeneratedMethodAccessor342.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)

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