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  1. ,
    Expert tip

    Update Tomcat container adapters to 1.0.0.CR8 or further. If that doesn't work, 0D0A3C21 in ASCII is <!, first characters in a HTML file, so, check if you're not reading a different file or if there's an issue with your deserialization.

  2. ,
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    If you're using Liferay, check the steps in the last message on how to fix it:

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via by Unknown author, 2 years ago
could not deserialize
via by Unknown author, 2 years ago
could not deserialize invalid stream header	at	at	at org.hibernate.util.SerializationHelper$CustomObjectInputStream.(	at org.hibernate.util.SerializationHelper.deserialize(	at org.hibernate.util.SerializationHelper.deserialize(	at org.hibernate.type.SerializableType.fromBytes(	at org.hibernate.type.SerializableType.get(	at org.hibernate.type.NullableType.nullSafeGet(	at org.hibernate.type.NullableType.nullSafeGet(	at org.hibernate.loader.Loader.getKeyFromResultSet(	at org.hibernate.loader.Loader.getRowFromResultSet(	at org.hibernate.loader.Loader.doQuery(	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(	at org.hibernate.loader.Loader.doList(	at org.hibernate.loader.Loader.list(	at org.hibernate.loader.hql.QueryLoader.list(	at org.hibernate.hql.ast.QueryTranslatorImpl.list(	at org.hibernate.impl.SessionImpl.list(	at org.hibernate.impl.QueryImpl.list(	at dtpitb.businessobjects.invivo.InvivoHibernateTestProgram.main(