我已将 Eclipse 富客户端平台产品从版本 4.4.2 更新到 4.12。一切正常，期待帮助。我收到 500 错误。它使用内部码头服务器的帮助。
奇怪的是，上下文帮助和帮助搜索工作正常。我发现在 Eclipse rcp 4.7.3 之前帮助工作正常。在版本 4.7.3 之后，所有其他版本都损坏了。
我不确定是什么问题。我怎样才能找到造成这种情况的原因？我添加了帮助的堆栈跟踪。
HTTP ERROR 500 org.apache.jasper.JasperException:
PWC6033: Error in Javac compilation for JSP
PWC6197: An error occurred at line: 16 in the jsp file: /advanced/tocView.jsp
PWC6199: Generated servlet error: SearchData cannot be resolved to a type
PWC6197: An error occurred at line: 16 in the jsp file: /advanced/tocView.jsp
PWC6199: Generated servlet error: SearchData cannot be resolved to a type
URI:
/help/advanced/tocView.jsp
STATUS:
500
MESSAGE:
org.apache.jasper.JasperException: PWC6033: Error in Javac compilation for JSP PWC6197: An error occurred at line: 16 in the jsp file: /advanced/tocView.jsp PWC6199: Generated servlet error: SearchData cannot be resolved to a type PWC6197: An error occurred at line: 16 in the jsp file: /advanced/tocView.jsp PWC6199: Generated servlet error: SearchData cannot be resolved to a type
SERVLET:
org.eclipse.equinox.http.jetty.internal.HttpServerManager$InternalHttpServiceServlet-246bbda0
CAUSED BY:
org.apache.jasper.JasperException: PWC6033: Error in Javac compilation for JSP PWC6197: An error occurred at line: 16 in the jsp file: /advanced/tocView.jsp PWC6199: Generated servlet error: SearchData cannot be resolved to a type PWC6197: An error occurred at line: 16 in the jsp file: /advanced/tocView.jsp PWC6199: Generated servlet error: SearchData cannot be resolved to a type
Caused by:
org.apache.jasper.JasperException: PWC6033: Error in Javac compilation for JSP
PWC6197: An error occurred at line: 16 in the jsp file: /advanced/tocView.jsp
PWC6199: Generated servlet error:
SearchData cannot be resolved to a type
PWC6197: An error occurred at line: 16 in the jsp file: /advanced/tocView.jsp
PWC6199: Generated servlet error:
SearchData cannot be resolved to a type
at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:129)
at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:299)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:392)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:453)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:625)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:492)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:378)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.equinox.jsp.jasper.JspServlet.service(JspServlet.java:164)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.equinox.http.registry.internal.ServletManager$ServletWrapper.service(ServletManager.java:183)
at org.eclipse.equinox.http.servlet.internal.HttpServiceRuntimeImpl$LegacyServlet.service(HttpServiceRuntimeImpl.java:1447)
at org.eclipse.equinox.http.servlet.internal.registration.EndpointRegistration.service(EndpointRegistration.java:159)
at org.eclipse.equinox.http.servlet.internal.servlet.ResponseStateHandler.processRequest(ResponseStateHandler.java:67)
at org.eclipse.equinox.http.servlet.internal.context.DispatchTargets.doDispatch(DispatchTargets.java:117)
at org.eclipse.equinox.http.servlet.internal.servlet.ProxyServlet.dispatch(ProxyServlet.java:147)
at org.eclipse.equinox.http.servlet.internal.servlet.ProxyServlet.preprocess(ProxyServlet.java:115)
at org.eclipse.equinox.http.servlet.internal.servlet.ProxyServlet.service(ProxyServlet.java:104)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.equinox.http.jetty.internal.HttpServerManager$InternalHttpServiceServlet.service(HttpServerManager.java:306)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:760)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:547)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1607)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1297)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:485)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1577)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1212)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.Server.handle(Server.java:500)
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383)
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:547)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:270)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:388)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
at java.base/java.lang.Thread.run(Thread.java:834)```