"PWC6345: There is an error in invoking javac." error when using Jetty WTP plugin to deploy a JSP page on Jetty

Question

I'm trying to deploy a JSP-page on Jetty, using the Jetty WTP plugin for Eclipse. But I get the error below. It looks like Jetty can't find javac. Is there any settings I have to do for the Jetty WTP plugin in Eclipse or how do I fix this?

The JSP page works fine if I export my project as a .war-file to jetty\webapps and then start Jetty manually using java -jar start.jar. But it doesn't work if I deploy using the Jetty WTP plugin for Eclipse as described.

I have my JAVA_HOME set to C:\Program Files (x86)\Java\jdk1.7.0_01 and I use Jetty 8.0.4 on Windows 7.

Servlets is working fine with the current setup. Any suggestions on how to solve this for JSP pages?

HTTP ERROR 500 Problem accessing /MyJavaWeb/formProcess. Reason:       PWC6345: There is an error in invoking javac.  A full JDK (not just JRE) is required  Caused by: org.apache.jasper.JasperException: PWC6345: There is an error in invoking javac.  A full JDK (not just JRE) is required     at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:92)     at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:378)     at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:119)     at org.apache.jasper.compiler.Jsr199JavaCompiler.compile(Jsr199JavaCompiler.java:208)     at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:384)     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:453)     at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:625)     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:492)     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:378)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)     at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:558)     at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:488)     at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)     at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)     at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:233)     at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:973)     at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:417)     at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:192)     at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:907)     at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)     at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:271)     at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:98)     at com.example.FormProcessServlet.doPost(FormProcessServlet.java:39)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:755)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)     at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:558)     at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:488)     at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)     at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:483)     at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:233)     at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:973)     at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:417)     at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:192)     at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:907)     at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)     at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)     at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)     at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110)     at org.eclipse.jetty.server.Server.handle(Server.java:346)     at org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:442)     at org.eclipse.jetty.server.HttpConnection$RequestHandler.content(HttpConnection.java:941)     at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:801)     at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:224)     at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:51)     at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:586)     at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:44)     at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)     at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)     at java.lang.Thread.run(Unknown Source) 

Answer 1

As Jan Bartel suggested, from Jetty: How to configure JSP:

by adding the line below in the start.ini-file in Eclipse, it works fine.

-Dorg.apache.jasper.compiler.disablejsr199=true