Slight clarification: the tag isn't getting recompiled, just the page that calls it.
On Jun 24, 2009, at 18:57:57, Rick Mann wrote: > I've got a fairly straightforward page that includes these lines: > > <%@ taglib prefix="lz" tagdir="/WEB-INF/tags/lz" > %> > . > . > . > <head> > <title>My Page</title> > <lz:base/> > . > . > . > </head> > . > . > . > > In resin 4.0.0, the presence of the <lz:base/> tag triggers some work > on Resin's part that results in recompiling both the tag and the page. > The tag is defined by a .tag file in WEB-INF/tags/lz: > > <%...@tag body-content="empty" > %><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"; > %><%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"; > %><% > if (("http".equals(request.getScheme()) && > request.getLocalPort() != 80) > || ("https".equals(request.getScheme()) && > request.getLocalPort() != 443)) > { > request.setAttribute("port", ":" + request.getLocalPort()); > } > %><base href="${pageContext.request.scheme}://$ > {pageContext.request.serverName}${port}$ > {pageContext.request.contextPath}/"/> > > > Here is what I see in the logs (set to FINE for most everything): the > request comes in, resin decides that the class created for the base > tag is missing, recompiles it, and then detects that the class digest > is modified (notably, the new digest is -1, whereas the old is > -4088317106370417708). So then it compiles the page's JSP again. > > Timing for the request on the browser shows it takes about 300 ms > (repeated reloads) to get it when I include the tag, and about 40 ms > when I don't. > > If I include the code for the tag directly in my JSP, I see no > recompilation, and similarly rapid page loads. Referencing JSTL tags > like fmt: does not seem to cause this difficulty. > > I also see a "_jsp._index__jsp destroy" message in the logs before it > gets the ClassNotFoundException. I don't know what that means. > > Here are the logs: > > [06-24 18:47:18.919] {http--80-9} FINE > (com.caucho.server.port.TcpConnection) TcpConnection[id=9,] starting > connection TcpConnection[id=http--80-9,http://*:80,ACCEPT], total=5 > [06-24 18:47:18.920] {http--80-9} FINE > (com.caucho.server.http.HttpRequest) Http[9] GET / HTTP/1.1 > [06-24 18:47:18.920] {http--80-9} FINE > (com.caucho.server.http.HttpRequest) Http[9] Remote-IP: > 12.155.29.1:56273 > [06-24 18:47:18.920] {http--80-9} FINE > (com.caucho.server.http.HttpRequest) Http[9] Host: satdb.org > [06-24 18:47:18.920] {http--80-9} FINE > (com.caucho.server.http.HttpRequest) Http[9] User-Agent: Mozilla/5.0 > (Macintosh; U; Intel Mac OS X 10_5_7; en-us) AppleWebKit/530.17 > (KHTML, like Gecko) Version/4.0 Safari/530.17 > [06-24 18:47:18.920] {http--80-9} FINE > (com.caucho.server.http.HttpRequest) Http[9] Cache-Control: max-age=0 > [06-24 18:47:18.920] {http--80-9} FINE > (com.caucho.server.http.HttpRequest) Http[9] Accept: application/ > xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/ > png,*/ > *;q=0.5 > [06-24 18:47:18.920] {http--80-9} FINE > (com.caucho.server.http.HttpRequest) Http[9] Accept-Language: en-us > [06-24 18:47:18.920] {http--80-9} FINE > (com.caucho.server.http.HttpRequest) Http[9] Accept-Encoding: gzip, > deflate > [06-24 18:47:18.920] {http--80-9} FINE > (com.caucho.server.http.HttpRequest) Http[9] Cookie: > JSESSIONID=aaaRgt_gP5iYl6bUVcvis > [06-24 18:47:18.920] {http--80-9} FINE > (com.caucho.server.http.HttpRequest) Http[9] Connection: keep-alive > [06-24 18:47:18.931] {http--80-9} FINE (com.caucho.jsp.Page) > _jsp._index__jsp destroy > [06-24 18:47:18.931] {http--80-9} FINE (com.caucho.jsp.PageManager) > Jsp[] uri:/index.jsp(cp:,app:/export/home/satdb/www/org/satdb/www) - > > / > export/home/satdb/www/org/satdb/www/index.jsp > [06-24 18:47:18.936] {http--80-9} FINE > (com.caucho.make.ClassDependency) java.lang.ClassNotFoundException: > _jsp._WEB_22dINF._tags._lz._base__tag in EnvironmentClassLoader[web- > app:http://default] > [06-24 18:47:18.936] {http--80-9} at > com > .caucho.loader.DynamicClassLoader.loadClass(DynamicClassLoader.java: > 1313) > [06-24 18:47:18.936] {http--80-9} at > com > .caucho.loader.DynamicClassLoader.loadClass(DynamicClassLoader.java: > 1291) > [06-24 18:47:18.936] {http--80-9} at > java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) > [06-24 18:47:18.936] {http--80-9} at > java.lang.Class.forName0(Native Method) > [06-24 18:47:18.936] {http--80-9} at > java.lang.Class.forName(Class.java:247) > [06-24 18:47:18.936] {http--80-9} at > com.caucho.make.ClassDependency.<init>(ClassDependency.java:84) > [06-24 18:47:18.936] {http--80-9} at > _jsp._index__jsp.init(_index__jsp.java:143) > [06-24 18:47:18.936] {http--80-9} at > com.caucho.jsp.JspManager.preload(JspManager.java:320) > [06-24 18:47:18.936] {http--80-9} at > com.caucho.jsp.JspManager.compile(JspManager.java:218) > [06-24 18:47:18.936] {http--80-9} at > com.caucho.jsp.JspManager.createPage(JspManager.java:171) > [06-24 18:47:18.936] {http--80-9} at > com.caucho.jsp.JspManager.createPage(JspManager.java:150) > [06-24 18:47:18.936] {http--80-9} at > com.caucho.jsp.PageManager.getPage(PageManager.java:307) > [06-24 18:47:18.936] {http--80-9} at > com.caucho.jsp.PageManager.getPage(PageManager.java:237) > [06-24 18:47:18.936] {http--80-9} at > com.caucho.jsp.PageManager.getPage(PageManager.java:220) > [06-24 18:47:18.936] {http--80-9} at > com.caucho.jsp.QServlet.getSubPage(QServlet.java:295) > [06-24 18:47:18.936] {http--80-9} at > com.caucho.jsp.QServlet.getPage(QServlet.java:210) > [06-24 18:47:18.936] {http--80-9} at > com > .caucho > .server.dispatch.PageFilterChain.compilePage(PageFilterChain.java:238) > [06-24 18:47:18.936] {http--80-9} at > com > .caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java: > 145) > [06-24 18:47:18.936] {http--80-9} at > com.latencyzero.satdb.RequestFilter.doFilter(RequestFilter.java:114) > [06-24 18:47:18.936] {http--80-9} at > com > .caucho > .server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:87) > [06-24 18:47:18.936] {http--80-9} at > org > .springframework > .orm > .hibernate3 > .support > .OpenSessionInViewFilter > .doFilterInternal(OpenSessionInViewFilter.java: > 198) > [06-24 18:47:18.936] {http--80-9} at > org.springframework.web.filter.OncePerRequestFilter.doFilter > (OncePerRequestFilter.java:76) > [06-24 18:47:18.936] {http--80-9} at > com > .caucho > .server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:87) > [06-24 18:47:18.936] {http--80-9} at > com > .caucho > .server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:185) > [06-24 18:47:18.936] {http--80-9} at > com > .caucho > .server.dispatch.ServletInvocation.service(ServletInvocation.java:264) > [06-24 18:47:18.936] {http--80-9} at > com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:275) > [06-24 18:47:18.936] {http--80-9} at > com > .caucho.server.port.TcpConnection.handleRequests(TcpConnection.java: > 644) > [06-24 18:47:18.936] {http--80-9} at > com.caucho.server.port.TcpConnection > $AcceptTask.doAccept(TcpConnection.java:1311) > [06-24 18:47:18.936] {http--80-9} at > com.caucho.server.port.TcpConnection > $AcceptTask.run(TcpConnection.java: > 1252) > [06-24 18:47:18.936] {http--80-9} at com.caucho.util.ThreadPool > $PoolThread.runTasks(ThreadPool.java:866) > [06-24 18:47:18.936] {http--80-9} at com.caucho.util.ThreadPool > $PoolThread.run(ThreadPool.java:779) > [06-24 18:47:18.936] {http--80-9} > [06-24 18:47:18.936] {http--80-9} FINE > (com.caucho.make.ClassDependency) > _jsp._WEB_22dINF._tags._lz._base__tag class digest is modified > (old=-4088317106370417708,new=-1) > [06-24 18:47:18.974] {http--80-9} CONFIG > (com.caucho.java.JavaCompiler) Compiling _jsp/_index__jsp.java > [06-24 18:47:18.975] {Thread-59} FINE > (com.caucho.loader.JarListLoader) tools.jar does not exist (path=/usr/ > local/java/versions/jdk1.6.0_12/jre/lib/tools.jar) > [06-24 18:47:19.138] {Thread-59} FINE > (com.caucho.java.InternalCompiler) > [06-24 18:47:19.142] {http--80-9} FINE (com.caucho.java.JavaCompiler) > merging .smap for _index__jsp.class > > > > > _______________________________________________ > resin-interest mailing list > resin-interest@caucho.com > http://maillist.caucho.com/mailman/listinfo/resin-interest _______________________________________________ resin-interest mailing list resin-interest@caucho.com http://maillist.caucho.com/mailman/listinfo/resin-interest
