Eclipse & JSP: java.lang.NoSuchMethodError: javax.servlet.jsp.tagext.TagAttributeInfo.<init>(Ljava/lang/String;ZLjava/lang/String;ZZ)V

Question

I'm using Eclipse 3.4 with WTP 3.0.2 and running a fairly large Dynamic Web Project. I've set up the project so that I can access it at http://127.0.0.1:8080/share/ but whenever I do, I get the following error:

  java.lang.NoSuchMethodError: javax.servlet.jsp.tagext.TagAttributeInfo.(Ljava/lang/String;ZLjava/lang/String;ZZ)V
  at org.apache.jasper.compiler.TagLibraryInfoImpl.createAttribute(TagLibraryInfoImpl.java:572)
  at org.apache.jasper.compiler.TagLibraryInfoImpl.createTagInfo(TagLibraryInfoImpl.java:401)
  at org.apache.jasper.compiler.TagLibraryInfoImpl.parseTLD(TagLibraryInfoImpl.java:248)
  at org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibraryInfoImpl.java:162)
  at org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:423)
  at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:492)
  at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1552)
  at org.apache.jasper.compiler.Parser.parse(Parser.java:126)
  at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:211)
  at org.apache.jasper.compiler.ParserController.parse(ParserController.java:100)
  at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:155)
  at org.apache.jasper.compiler.Compiler.compile(Compiler.java:295)
  at org.apache.jasper.compiler.Compiler.compile(Compiler.java:276)
  at org.apache.jasper.compiler.Compiler.compile(Compiler.java:264)
  at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
  at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:303)
  at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
  at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
  at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
  at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
  at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
  at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
  at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
  at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
  at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
  at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
  at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
  at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
  at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
  at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
  at java.lang.Thread.run(Unknown Source)

As none of the above files is my own, pointing out the cause of the problem is quite hard. Any ideas where to start looking?

Answer 1

I ended up answering my own question: the problem was that among the necessary JARs that I had added to Tomcat was a conflicting servlet.jar. When I removed this, the error disappeared.