org.apache.jasper.JasperException: Unable to compile class for JSP: 

An error occurred at line: 177 in the jsp file: /WEB-INF/jsp/match_coce_teaser.jsp
The method toString() in the type Link is not applicable for the arguments (boolean)
174: 
175: <td align="center" valign="center">
176: <a class="simple" 
177: href="<%= Link.REGISTER_START.toString(true) %>">
178: <img src='<%= getImgPath("welcome2.png") %>' style="margin: 8px;" />
179: </a>
180: </td>


An error occurred at line: 186 in the jsp file: /WEB-INF/jsp/match_coce_teaser.jsp
The method toString() in the type Link is not applicable for the arguments (boolean)
183: <div style="margin: 8px;">
184: Hast du heute Abend schon etwas vor? Wenn nicht, dann hast du die 
185: M&ouml;glichkeit, nach einer schnellen und unverbindlichen 
186: <a class="simple" style="text-decoration: underline;" href="<%= Link.REGISTER_START.toString(true) %>">Registrierung</a> 
187: ein interessantes Fussball-Spiel zu erleben, bei welchem du die 
188: Hauptrolle spielst.
189: </div>


Stacktrace:
	at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
	at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
	at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:439)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:349)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:327)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:314)
	at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:592)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:326)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488)
	at de.zent.web.ViewDispatcher.dispatch(ViewDispatcher.java:37)
	at de.zent.web.FrontController.processRequest(FrontController.java:136)
	at de.zent.web.FrontController.doGet(FrontController.java:189)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at de.zent.tm.web.TutorialFilter.doFilter(TutorialFilter.java:55)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at de.zent.tm.web.PermissionCheckFilter.doFilter(PermissionCheckFilter.java:51)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at de.zent.tm.web.BaseFilter.doFilter(BaseFilter.java:32)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Thread.java:662)