3388779 - TREX search failing in SAP PO 7.5 SP26, java.lang.ClassNotFoundException: com.sap.aii.mdt.server.trex.QueryType

When trying to execute the TREX search application the following error can appear:

com.sap.engine.services.rmi_p4.exception.P4BaseRuntimeException: I/O operation failed : java.lang.ClassNotFoundException: com.sap.aii.mdt.server.trex.QueryType ------------------------- Loader Info ------------------------- ClassLoader name: [sap.com/com.sap.xi.mdt.soa] Loader hash code: 221fa68a Living status: alive Direct parent loaders: [system:Frame] [interface:cross] [interface:security] [interface:transactionext] [interface:webservices] [library:ejb20] [library:j2eeca] [library:jms] [library:mail-activation] [library:opensql] [library:webservices_lib] [service:ejb] [service:servlet_jsp] [sap.com/com.sap.xi.mdt] [service:com.sap.aii.sec.svc] [sap.com/tc~lm~itsam~service~clickjacking] [service:com.sap.aii.af.svc] [library:com.sap.xi.rwb.api] [sap.com/com.sap.xi.mdt.beans] Resources: D:\usr\sap\POD\J00\j2ee\cluster\apps\sap.com\com.sap.xi.mdt.soa\servlet_jsp\mdt_soa\root\WEB-INF\lib\com.sap.soa.mdt_api.jar --------------------------------------------------------------- :

NetWeaver 7.5
PI/PO

 TREX search, com.sap.engine.services.rmi_p4.exception.P4BaseRuntimeException, operation failed, java.lang.ClassNotFoundException , KBA , BC-XI-TRX , TREX Search , Problem