java.lang.NoClassDefFoundError: oracle/reports/RWException

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java.lang.NoClassDefFoundError: oracle/reports/RWException
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(
at oracle.reports.jsp.ReportTagExtraInfo.class$(
at oracle.reports.jsp.ReportTagExtraInfo.getVariableInfo(
at oracle.jsp.parse.JspRTTag.getDefinedObjects(
at oracle.jsp.parse.OpenJspTagHandler.defineBeans(
at oracle.jsp.parse.OpenJspTagHandler.validateTagAttributes(
at oracle.jsp.parse.JspParseTag.parse(
at oracle.jsp.parse.OpenJspTagHandler.parse(
at oracle.jsp.parse.JspParseTag.parseNextTag(
at oracle.jsp.parse.JspParseTagFile.parse(
at oracle.jsp.parse.OracleJsp2Java.transform(
at oracle.jsp.JspServlet.doDispatch(
at oracle.jsp.JspServlet.internalService(
at oracle.jsp.JspServlet.service(
at javax.servlet.http.HttpServlet.service(
at org.apache.jserv.JServConnection.processRequest(

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