Problem with uploading structures

Hi,





I was trying to develop a custom application that imports SDF files into Oracle tables.I am basically using the example code provided with Jchem. But I got an error in the transfer/upload.jsp file. the stack trace shows the following error.





java.lang.IllegalArgumentException: type of request cant be null


at chemaxon.util.HttpStreamToFile.<init>(HttpStreamToFile.java:172)


at chemaxon.util.UploadThread.setParams(UploadThread.java:85)


at org.apache.jsp.library.transfer.upload_jsp._jspService(upload_jsp.java:140)


at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)


at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)


at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)


at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)


at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)


at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)


at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:362)


at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)


at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)


at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)


at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)


at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)


at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)


at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)


at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)


at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)


at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)


at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)


at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)


at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)


at java.lang.Thread.run(Thread.java:534)





Could someone pls help me in finding out where exactly the error lies?





Bhargav

Hi





Which JChem version are you using?





Peter

I am using jchem 3.3.2


Database: Oracle 10g on linux


Web server: tomcat 5.5.9 on linux

Hmmm. Are you sure? To all appearances, the highest JChem version number is 3.1.6.

I am sorry I was a bit confused about that. The Jchem version is 2.2.1

I would like to recommend you to upgrade to the newest JChem version. The 2.2.1 version is very old, there have been many improvements and bug fixes since then.

(Possibly the JSP file and jchem.jar belong to different versions.)

I think that would be a good idea. But right now we already have most of the application developed using the 2.2.1 API. The strange this is that


we have an old application running (which uses jchem 2.2.1) that has fileupload thing working just fine. We were planning to using the same thing in a new application and this time it is giving the above errors. The only difference is that the old application using tomcat 5.0 and the one on which we are working now uses the latest tomcat 5.5.9 . Do you think it might have anything to do with the problem? The error says that there is something wrong at chemaxon.util.UploadThread.setParams. But none of the arguments that are passed to this function are null as the error


"java.lang.IllegalArgumentException: type of request cant be null" says.

There indeed seems to be a problem with JChem 2.2.1, Tomcat 5.5.12 and the Firefox browser, when I try to use "Import" function of the JSP example. (Though the problem seems to be of a nature different from the one you reported.)





I experienced no problem whith the "Import" function of the JChem 3.1.6 JSP example. If you absolutely want to use JChem 2.2.1, I suggest to take the enhancements from the JSP example in JChem 3.1.6 that have taken place since JChem 2.2.1 and adapt them to the JChem 2.2.1 Java API, if necessary.