Tomcat & Java servlet java.lang.UnsatisfiedLinkError- Please help!
Hi,
I am trying to use some java classes which I have created in a servlet, however these classes in turn use an external API which seems to work fine as desktop java but on my server they don't.
I get the following exceptions when trying to run my servlet:
(The first time I run it after restarting Tomcat:)
java.lang.NullPointerException
at com.jae.jaeQuestion.QuestionServlet.doGet(QuestionServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
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.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:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Unknown Source)
(The second time I run it after getting the above error:)
java.lang.UnsatisfiedLinkError: The shared library C:\Program Files\ECLiPSe 5.10\lib\i386_nt\ec_java_load.dll could not be found.
com.parctechnologies.eclipse.Platform_i386_nt.loadEclipseSharedLibrary(Platform_i386_nt.java:72)
com.parctechnologies.eclipse.EmbeddedEclipse.loadEclipse(EmbeddedEclipse.java:321)
com.parctechnologies.eclipse.EmbeddedEclipse.processOptions(EmbeddedEclipse.java:234)
com.parctechnologies.eclipse.EmbeddedEclipse.<init>(EmbeddedEclipse.java:164)
com.parctechnologies.eclipse.EmbeddedEclipse.getInstance(EmbeddedEclipse.java:124)
com.jae.Question.QuestionSet.<init>(QuestionSet.java:81)
com.jae.jaeQuestion.QuestionServlet.getOutput(QuestionServlet.java:75)
com.jae.jaeQuestion.QuestionServlet.doGet(QuestionServlet.java:51)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
The API that I am trying to get wokring is an interface between java and Eclipse Prolog, this is the API:
http://eclipse.crosscoreop.com/doc/javadoc/JavaEclipseInterface/index.html
Has anyone ever used this- there must be someone out there!
My Tomcat setup is fine as I am aware because I have other webapps running on it without a hitch. I am running this on Windows XP, would it be any better if I moved it to my linux server?
If anyone could shed some light on this problem I will be very grateful. (It's for a University project and I feel that I have tried everything, even my lecturers don't know what's wrong!)
Thanks in advance,
Lilalfyalien
