3 Replies Latest reply on Sep 25, 2008 11:17 AM by cl20008jboss

Error in reloading jsp with taglib directive

qiqbal Aug 31, 2006 2:51 AM

Hi,

Can anyone help me with a strange issue.

I have a simple jsp with a taglib directive.

<%@ taglib uri = "WEB-INF/myTaglib.tld" prefix = "output" %>
<html>
<body>
Hello
</body>
</html>

I saved the taglib at:
\jboss-4.0.3\server\default\deploy\myApp.war\WEB-INF

I saved the jsp at the root of my web application, so it is accessible as:
http://localhost:8080/myApp/myJsp.jsp

Whenever i make the slighest change in this jsp and restart my jboss server, it gives an error. The strangest thing is that the error comes only once. Even if i simply refresh the page, its gone. It only happens once when I make changes and restart the server at the same time.
The exception thrown is:

10:47:50,609 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception
java.util.zip.ZipException: invalid entry size (expected 2683 but got 2686 bytes)
 at java.util.zip.ZipInputStream.readEnd(ZipInputStream.java:368)
 at java.util.zip.ZipInputStream.read(ZipInputStream.java:141)
 at java.util.jar.JarInputStream.read(JarInputStream.java:171)
 at java.util.zip.ZipInputStream.closeEntry(ZipInputStream.java:91)
 at java.util.zip.ZipInputStream.getNextEntry(ZipInputStream.java:69)
 at java.util.jar.JarInputStream.getNextEntry(JarInputStream.java:118)
 at java.util.jar.JarInputStream.getNextJarEntry(JarInputStream.java:149)
 at org.jboss.web.tomcat.tc5.jasper.TagLibCache.scanJar(TagLibCache.java:319)
 at org.jboss.web.tomcat.tc5.jasper.TagLibCache.processTldsInFileSystem(TagLibCache.java:263)
 at org.jboss.web.tomcat.tc5.jasper.TagLibCache.processTldsInFileSystem(TagLibCache.java:256)
 at org.jboss.web.tomcat.tc5.jasper.TagLibCache.init(TagLibCache.java:100)
 at org.jboss.web.tomcat.tc5.jasper.TagLibCache.getLocation(TagLibCache.java:88)
 at org.apache.jasper.JspCompilationContext.getTldLocation(JspCompilationContext.java:519)
 at org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:417)
 at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:483)
 at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1543)
 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:146)
 at org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
 at org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
 at org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
 at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556)
 at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:293)
 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:810)

Please note the error in bold. It is coming due to taglib directive.

I tried following things and it worked
1> Make changes in jsp but do not restart server
2> Restart server but no changes in jsp
3> Simply refresh the page after first access

Please someone help me, it is most urgent.

Thanks in advance

Qaisar Iqbal
qiqbal@folio3.com
Sr. Software Engineer
Folio3 Pvt. Ltd.
Karachi, Pakistan
www.folio3.com

1. Re: Error in reloading jsp with taglib directive

heidric Jul 4, 2007 2:24 PM (in response to qiqbal)

Hi Qaisar ,

I got exactly the same ZipException like you when using JBOSS in combination with custom tagLibs in JSP's.

Since I have to solve the same problem could you send me a solution if available? My business adress is christof.heidrich@dkib.com.

Thanks in advance,

Christof
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2. Re: Error in reloading jsp with taglib directive

grexe Sep 5, 2007 5:25 AM (in response to qiqbal)

Glad I am not alone with this... I get the same error here, with the following taglibs (as you can see this is a Struts-webapp):

<%@ taglib uri="/WEB-INF/tld/struts-html.tld" prefix="html"%>
<%@ taglib uri="/WEB-INF/tld/struts-bean.tld" prefix="bean"%>

I am on Java 1.4.2 and JBoss 4.0.4.GA_p1 (also tried 4.0.4.GA and 4.0.3SP1):

org.apache.jasper.JasperException: Unable to initialize TldLocationsCache: Unexpected end of ZLIB input stream
 org.jboss.web.tomcat.tc5.jasper.TagLibCache.init(TagLibCache.java:105)
 org.jboss.web.tomcat.tc5.jasper.TagLibCache.getLocation(TagLibCache.java:88)
 org.apache.jasper.JspCompilationContext.getTldLocation(JspCompilationContext.java:519)
 org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:417)
 org.apache.jasper.compiler.Parser.parseDirective(Parser.java:483)
 org.apache.jasper.compiler.Parser.parseElements(Parser.java:1543)
 org.apache.jasper.compiler.Parser.parse(Parser.java:126)
...

Root cause:

org.apache.jasper.JasperException: Unexpected end of ZLIB input stream
 org.jboss.web.tomcat.tc5.jasper.TagLibCache.scanJar(TagLibCache.java:338)
 org.jboss.web.tomcat.tc5.jasper.TagLibCache.processTldsInFileSystem(TagLibCache.java:263)
 org.jboss.web.tomcat.tc5.jasper.TagLibCache.processTldsInFileSystem(TagLibCache.java:256)
 org.jboss.web.tomcat.tc5.jasper.TagLibCache.init(TagLibCache.java:100)
 org.jboss.web.tomcat.tc5.jasper.TagLibCache.getLocation(TagLibCache.java:88)
 org.apache.jasper.JspCompilationContext.getTldLocation(JspCompilationContext.java:519)
 org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:417)
 org.apache.jasper.compiler.Parser.parseDirective(Parser.java:483)
 org.apache.jasper.compiler.Parser.parseElements(Parser.java:1543)
 org.apache.jasper.compiler.Parser.parse(Parser.java:126)
...

This has to be a configuration/installation-issue as my colleague could not reproduce this error yet on his (similar) setup. I will post any helpful input here, in the meantime I am grateful for any inspiration...

PS: The files are perfectly readable and I doublechecked the jsf-jars in \jbossweb-tomcat55.sar\jsf-libs

3. Re: Error in reloading jsp with taglib directive

cl20008jboss Sep 25, 2008 11:17 AM (in response to qiqbal)

I have now encountered this same situation with my app on JBoss 4.2.3. Were you ever able to find a resolution to this?

Chris
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