[protege-discussion] Exception: PluginUtilities.forName(null) failed

[Alana Jéssica Vilela Messias]

I have a problem when i try run my application. It was running as Java
Application, but when i try as Web Application (using Apache Tomcat) was
presented the following error:

Exception: PluginUtilities.forName(null) failed

*java.lang.NullPointerException*

      at java.lang.Class.forName0(*Native Method*)

      at java.lang.Class.forName(Unknown Source)

      at edu.stanford.smi.protege.plugin.PluginUtilities.forName(Unknown
Source)

      at edu.stanford.smi.protege.plugin.PluginUtilities.forName(Unknown
Source)

      at edu.stanford.smi.protege.util.SystemUtilities.forName(Unknown
Source)

      at edu.stanford.smi.protege.util.SystemUtilities.newInstance(Unknown
Source)

      at edu.stanford.smi.protege.model.Project.includeDomainKB(Unknown
Source)

      at edu.stanford.smi.protege.model.Project.loadIncludedProject(Unknown
Source)

      at edu.stanford.smi.protege.model.Project.loadIncludedProjects(Unknown
Source)

      at
edu.stanford.smi.protege.model.Project.createDomainKnowledgeBase(Unknown
Source)

      at edu.stanford.smi.protege.model.Project.<init>(Unknown Source)

      at edu.stanford.smi.protege.model.Project.<init>(Unknown Source)

      at edu.stanford.smi.protege.model.Project.<init>(Unknown Source)

      at edu.stanford.smi.protege.model.Project.<init>(Unknown Source)

      at JessTab.ProtegeLoadProject.call(Unknown Source)

      at jess.ep.a(Unknown Source)

      at jess.Funcall.execute(Unknown Source)

      at jess.Jesp.a(Unknown Source)

      at jess.Jesp.for(Unknown Source)

      at jess.Jesp.parse(Unknown Source)

      at jess.Rete.executeCommand(Unknown Source)

      at jess.Rete.executeCommand(Unknown Source)

      at Code.MASTERWebAgent.run(*MASTERWebAgent.java:139*)

      at Code.RetornaClassificacao.ativa(*RetornaClassificacao.java:31*)

      at org.apache.jsp.p2_jsp._jspService(*p2_jsp.java:59*)

      at org.apache.jasper.runtime.HttpJspBase.service(*HttpJspBase.java:70*
)

      at javax.servlet.http.HttpServlet.service(*HttpServlet.java:717*)

      at org.apache.jasper.servlet.JspServletWrapper.service(*
JspServletWrapper.java:374*)

      at org.apache.jasper.servlet.JspServlet.serviceJspFile(*
JspServlet.java:342*)

      at org.apache.jasper.servlet.JspServlet.service(*JspServlet.java:267*)

      at javax.servlet.http.HttpServlet.service(*HttpServlet.java:717*)

      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(*
ApplicationFilterChain.java:290*)

      at org.apache.catalina.core.ApplicationFilterChain.doFilter(*
ApplicationFilterChain.java:206*)

      at org.apache.catalina.core.StandardWrapperValve.invoke(*
StandardWrapperValve.java:233*)

      at org.apache.catalina.core.StandardContextValve.invoke(*
StandardContextValve.java:191*)

      at org.apache.catalina.core.StandardHostValve.invoke(*
StandardHostValve.java:128*)

      at org.apache.catalina.valves.ErrorReportValve.invoke(*
ErrorReportValve.java:102*)

      at org.apache.catalina.core.StandardEngineValve.invoke(*
StandardEngineValve.java:109*)

      at org.apache.catalina.connector.CoyoteAdapter.service(*
CoyoteAdapter.java:286*)

      at org.apache.coyote.http11.Http11Processor.process(*
Http11Processor.java:845*)

      at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(*
Http11Protocol.java:583*)

      at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(*
JIoEndpoint.java:447*)

      at java.lang.Thread.run(Unknown Source)

Warning: SystemUtilities.newInstance(null) no such class

null

1

Error during execution

*java.lang.NullPointerException*

( load-project src//Code//rulesystem//projects//cfp.pprj )

Funcall.execute

Jess reported an error in routine Funcall.execute

      while executing (load-project
src//Code//rulesystem//projects//cfp.pprj).

  Message: Error during execution.

  Program text: ( load-project src//Code//rulesystem//projects//cfp.pprj )  at
line 1.
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