Bug 123035 Serialize primitive types, hashmaps and other Java classes not using Java serialization method
If you take a look at the serialized engine output, we frequently see java classes appearing. I see String class; I see PageHint class; I see Hashmap classes. All of these should be gone so that BIRT document is independent of any Java-based class serialization. DtE team will move primitive type serialization to BIRT.CORE, see 123034. Engine can use that.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/AbstractDataEngine.java
assert ( false );
		return null;
	}
	public DataEngine getDataEngine( )
	{
		return dataEngine;
	}
	protected class Key implements Serializable
	{
		private static final long serialVersionUID = 42L;
		public String parentRSID = null;
		public String rowid = null;
		public String resultSetID = null;
		public Key( String parentid, String rid, String resultID )
		{
			parentRSID = parentid;
			rowid = rid;
			resultSetID = resultID;
		}
		private void writeObject( ObjectOutputStream out ) throws IOException
		{
			out.writeObject( parentRSID );
			out.writeObject( rowid );
			out.writeObject( resultSetID );
		}
		private void readObject( ObjectInputStream in ) throws IOException,
				ClassNotFoundException
		{
			parentRSID = ( String ) in.readObject( );
			rowid = ( String ) in.readObject( );