Jasper exception PWC6188 - Jetty cannot resolve javax.servlet.jstl.fmt TLD to JSTL classes inside project

Question

Related: Jetty - upgrading 9.3.0.M1 to 9.3.0.M2 breaks JSP functionality using Maven

Related: Jetty 9 migrate from JDK1.8 to JDK11 - http://java.sun.com/jsp/jstl/fmt cannot be resolved in JDK11 - fat exec jar

I have a legacy maven project running on JDK 1.8 (yup, old) that I need to upgrade to JDK 17.

It runs on an embedded Jetty instance version 9.2.23.v20171218.

I've spent all day trolling through SO trying at least 9 different fixes advised by others, none work. I have no web.xml file or web-INF folder, virtually all posts refer to these folders in the project?

Also it is an embedded instance of Jetty (which seems quite unique and a strange use case?)

The exception on trying to access the project's index.jsp in a browser is

org.apache.jasper.JasperException: /index.jsp(1,64) PWC6188: The absolute uri: http://java.sun.com/jsp/jstl/core cannot be resolved in either web.xml or the jar files deployed with this application
    at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:92)
    at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:378)
    at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:172)
    at org.apache.jasper.compiler.TagLibraryInfoImpl.generateTLDLocation(TagLibraryInfoImpl.java:431)
    at org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:240)
    at org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:502)
    at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:582)
    at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1657)
    at org.apache.jasper.compiler.Parser.parse(Parser.java:185)
    at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:244)
    at org.apache.jasper.compiler.ParserController.parse(ParserController.java:145)
    at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:212)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
    at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:625)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:473)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:377)
    at org.eclipse.jetty.jsp.JettyJspServlet.service(JettyJspServlet.java:103)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
    at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
    at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:553)
    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
    at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
    at org.eclipse.jetty.server.Server.handle(Server.java:499)
    at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
    at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:258)
    at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
    at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
    at java.base/java.lang.Thread.run(Thread.java:833)
------------------------------------------------------------

I'm aware there are at least 30 posts about this same issue - I've spent today working through them one by one, no joy...

The error seems related to the fact that the TLD in the JSP tag at the top of my index.jsp is not mapped to the correct class in the referenced JAR, and this only matters if running in any JDK higher then 1.8 (dropped JDK17 and tried JDK11, it also doesn't work). Any JDK above 1.8 seems to give the above exception, and Jetty fails to parse any .JSP files anymore.

I have the following Maven artifacts as suggested by various SO posts:

.
.
.
       <dependency>
         <groupId>javax.servlet.jsp.jstl</groupId>
         <artifactId>jstl-api</artifactId>
         <version>1.2</version>
       </dependency>         
       <dependency>
         <groupId>javax.servlet</groupId>
         <artifactId>jstl</artifactId>
         <version>1.2</version>
       </dependency>
       <dependency>
         <groupId>javax.xml.bind</groupId>
         <artifactId>jaxb-api</artifactId>
         <version>2.3.1</version>
       </dependency>
.
.
.

and can confirm in NetBeans 14 that in "Dependencies" I have

jstl-1.2.jar
jstl-api-1.2.jar

If I open jstl-1.2.jar in the Netbeans 14 project view, I can see the exact class complained about, e. g.

jstl-1.2.jar
 >.
  .
  .
  javax.servlet.jsp.jstl.core
  javax.servlet.jsp.jstl.fmt
  .
  .
  .

are present in the project JAR.

My .jsp page's first lines are

<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
.
.
.

How can I get Jetty / Jasper to find jstl-1.2.jar's "fmt" and "core" classes inside the JAR above in my project, and map the TLDs above to those classes so I can get JSP functionality back in any JDK higher than 1.8?

(As stated, JDK 1.8 works with the above codebase as-is, any JDK of a higher version fails with above exception.)

ANY help or suggestions appreciated!

Thanks

My mvn dependency:tree:

--- maven-dependency-plugin:2.8:tree (default-cli) @ verdi ---
[INFO] verishare:verdi:jar:1.0-SNAPSHOT
[INFO] +- org.slf4j:slf4j-simple:jar:1.7.21:compile
[INFO] |  \- org.slf4j:slf4j-api:jar:1.7.21:compile
[INFO] +- org.apache.logging.log4j:log4j-api:jar:2.17.1:compile
[INFO] +- org.apache.logging.log4j:log4j-core:jar:2.17.1:compile
[INFO] +- junit:junit:jar:4.11:test
[INFO] |  \- org.hamcrest:hamcrest-core:jar:1.3:test
[INFO] +- org.eclipse.jetty.websocket:websocket-client:jar:9.2.23.v20171218:compile
[INFO] |  +- org.eclipse.jetty:jetty-util:jar:9.2.23.v20171218:compile
[INFO] |  +- org.eclipse.jetty:jetty-io:jar:9.2.23.v20171218:compile
[INFO] |  \- org.eclipse.jetty.websocket:websocket-common:jar:9.2.23.v20171218:compile
[INFO] |     \- org.eclipse.jetty.websocket:websocket-api:jar:9.2.23.v20171218:compile
[INFO] +- org.eclipse.jetty:jetty-server:jar:9.2.23.v20171218:compile
[INFO] |  +- javax.servlet:javax.servlet-api:jar:3.1.0:compile
[INFO] |  \- org.eclipse.jetty:jetty-http:jar:9.2.23.v20171218:compile
[INFO] +- org.eclipse.jetty:jetty-servlet:jar:9.2.23.v20171218:compile
[INFO] |  \- org.eclipse.jetty:jetty-security:jar:9.2.23.v20171218:compile
[INFO] +- com.google.code.gson:gson:jar:2.2.4:compile
[INFO] +- org.glassfish:javax.json:jar:1.0.4:compile
[INFO] +- org.apache.commons:commons-dbcp2:jar:2.5.0:compile
[INFO] |  +- org.apache.commons:commons-pool2:jar:2.6.0:compile
[INFO] |  \- commons-logging:commons-logging:jar:1.2:compile
[INFO] +- postgresql:postgresql:jar:9.1-901-1.jdbc4:compile
[INFO] +- org.eclipse.jetty:jetty-webapp:jar:9.2.23.v20171218:compile
[INFO] |  \- org.eclipse.jetty:jetty-xml:jar:9.2.23.v20171218:compile
[INFO] +- org.eclipse.jetty:jetty-jsp:jar:9.2.23.v20171218:compile
[INFO] |  +- org.eclipse.jetty.toolchain:jetty-schemas:jar:3.1.M0:compile
[INFO] |  +- javax.servlet.jsp:javax.servlet.jsp-api:jar:2.3.1:compile
[INFO] |  +- org.glassfish.web:javax.servlet.jsp:jar:2.3.2:compile
[INFO] |  +- org.eclipse.jetty.orbit:javax.servlet.jsp.jstl:jar:1.2.0.v201105211821:compile
[INFO] |  +- org.glassfish.web:javax.servlet.jsp.jstl:jar:1.2.2:compile
[INFO] |  +- org.glassfish:javax.el:jar:3.0.0:compile
[INFO] |  \- org.eclipse.jetty.orbit:org.eclipse.jdt.core:jar:3.8.2.v20130121:compile
[INFO] +- com.microsoft.sqlserver:mssql-jdbc:jar:6.4.0.jre8:compile
[INFO] +- org.mariadb.jdbc:mariadb-java-client:jar:2.7.4:compile
[INFO] +- org.apache.httpcomponents:httpclient:jar:4.5.1:compile
[INFO] |  +- org.apache.httpcomponents:httpcore:jar:4.4.3:compile
[INFO] |  \- commons-codec:commons-codec:jar:1.9:compile
[INFO] +- org.glassfish.jersey.core:jersey-server:jar:2.22.1:compile
[INFO] |  +- org.glassfish.jersey.core:jersey-common:jar:2.22.1:compile
[INFO] |  |  +- org.glassfish.jersey.bundles.repackaged:jersey-guava:jar:2.22.1:compile
[INFO] |  |  \- org.glassfish.hk2:osgi-resource-locator:jar:1.0.1:compile
[INFO] |  +- org.glassfish.jersey.core:jersey-client:jar:2.22.1:compile
[INFO] |  +- javax.ws.rs:javax.ws.rs-api:jar:2.0.1:compile
[INFO] |  +- org.glassfish.jersey.media:jersey-media-jaxb:jar:2.22.1:compile
[INFO] |  +- javax.annotation:javax.annotation-api:jar:1.2:compile
[INFO] |  +- org.glassfish.hk2:hk2-api:jar:2.4.0-b31:compile
[INFO] |  |  +- org.glassfish.hk2:hk2-utils:jar:2.4.0-b31:compile
[INFO] |  |  \- org.glassfish.hk2.external:aopalliance-repackaged:jar:2.4.0-b31:compile
[INFO] |  +- org.glassfish.hk2.external:javax.inject:jar:2.4.0-b31:compile
[INFO] |  +- org.glassfish.hk2:hk2-locator:jar:2.4.0-b31:compile
[INFO] |  \- javax.validation:validation-api:jar:1.1.0.Final:compile
[INFO] +- org.glassfish.jersey.containers:jersey-container-servlet-core:jar:2.22.1:compile
[INFO] +- org.glassfish.jersey.media:jersey-media-multipart:jar:2.22.1:compile
[INFO] |  \- org.jvnet.mimepull:mimepull:jar:1.9.6:compile
[INFO] +- org.glassfish.jersey.media:jersey-media-json-jackson:jar:2.22.1:compile
[INFO] |  +- org.glassfish.jersey.ext:jersey-entity-filtering:jar:2.22.1:compile
[INFO] |  +- com.fasterxml.jackson.jaxrs:jackson-jaxrs-base:jar:2.5.4:compile
[INFO] |  \- com.fasterxml.jackson.jaxrs:jackson-jaxrs-json-provider:jar:2.5.4:compile
[INFO] |     \- com.fasterxml.jackson.module:jackson-module-jaxb-annotations:jar:2.5.4:compile
[INFO] +- org.glassfish.jersey.containers:jersey-container-jetty-http:jar:2.22.1:compile
[INFO] |  \- org.eclipse.jetty:jetty-continuation:jar:9.1.1.v20140108:compile
[INFO] +- org.reflections:reflections:jar:0.9.10:compile
[INFO] |  +- com.google.guava:guava:jar:15.0:compile
[INFO] |  +- org.javassist:javassist:jar:3.19.0-GA:compile
[INFO] |  \- com.google.code.findbugs:annotations:jar:2.0.1:compile
[INFO] +- com.jcraft:jsch:jar:0.1.53:compile
[INFO] +- ie.corballis:sox-java:jar:1.0.1:compile
[INFO] +- com.sun.mail:javax.mail:jar:1.5.0:compile
[INFO] |  \- javax.activation:activation:jar:1.1:compile
[INFO] +- org.springframework:spring-web:jar:5.3.0:compile
[INFO] |  +- org.springframework:spring-beans:jar:5.3.0:compile
[INFO] |  \- org.springframework:spring-core:jar:5.3.0:compile
[INFO] |     \- org.springframework:spring-jcl:jar:5.3.0:compile
[INFO] +- com.fasterxml.jackson.core:jackson-databind:jar:2.11.3:compile
[INFO] |  \- com.fasterxml.jackson.core:jackson-core:jar:2.11.3:compile
[INFO] +- com.fasterxml.jackson.core:jackson-annotations:jar:2.11.3:compile
[INFO] +- javax.servlet.jsp.jstl:jstl-api:jar:1.2:compile
[INFO] |  +- javax.servlet:servlet-api:jar:2.5:compile
[INFO] |  \- javax.servlet.jsp:jsp-api:jar:2.1:compile
[INFO] +- javax.servlet:jstl:jar:1.2:compile
[INFO] \- javax.xml.bind:jaxb-api:jar:2.3.1:compile
[INFO]    \- javax.activation:javax.activation-api:jar:1.2.0:compile
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  2.017 s
[INFO] Finished at: 2022-08-24T16:49:34+02:00
[INFO] ------------------------------------------------------------------------

EDIT: after reading many, many SO posts about exactly this exception I changed to the Apache artifacts, but this changes nothing, the exact same exception except for the string "PWC6188" which disappears if I use the Apache artifacts

<dependency>
    <groupId>org.eclipse.jetty</groupId>
    <artifactId>apache-jsp</artifactId>
    <version>9.2.23.v20171218</version>
    </dependency>
        
     <dependency>
     <groupId>org.eclipse.jetty</groupId>
     <artifactId>apache-jstl</artifactId>
     <version>9.2.23.v20171218</version>        
</dependency>

iso

<dependency>
   <groupId>org.eclipse.jetty</groupId>
   <artifactId>jetty-jsp</artifactId>
   <version>9.2.23.v20171218</version>
</dependency>
<dependency>
    <groupId>jstl</groupId>
    <artifactId>jstl</artifactId>
    <version>1.2</version>
</dependency>

The rest of the exception text remains the same for the Apache-JSP artifacts, the line numbers just change in the stack trace.

Answer 1

This was solved - see in relation to

Jetty - upgrading 9.3.0.M1 to 9.3.0.M2 breaks JSP functionality using Maven

In summary (see above link) The breakthrough was to add the Apache-JSP and Apache-JSTL artifacts in the pom.xml (details at above link), and also add jetty-webapp, jaxb-api and jetty-annotations artifacts, and then remove the Jetty-JSP artifact.

And then also upgrading to JDK 17 (from JDK 1.8) and taking the Jetty version in the pom.xml up to at least version 9.4.48.v20220622

Once this was done PWC6188 with

org.apache.jasper.JasperException: /index.jsp(1,64) PWC6188: The absolute uri: http://java.sun.com/jsp/jstl/core cannot be resolved in either web.xml or the jar files deployed with this application
    at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:92)

disappeared from the browser when accessing the Jetty server and JSP rendering is working again as it did previously with the legacy Jetty I was using (9.2.2.v20140723) and old, old JDK 1.8.

I also upgraded my Netbeans from NetBeans 11 to NetBeans 14, not sure if that also had a positive effect to get this working. Only tested so far inside NetBeans itself, haven't tried deploying the .jar yet to the operational server involved.

It now works in JDK 17 which was my goal all along, with a slightly more current Jetty version (at least - still working on getting to a current Jetty version) with JSP support working.

Hope this helps someone.

EDIT: I forgot I also had to do this to my WebappContext whens starting jetty to make PWC6188 exception above go away when starting Jetty:

.
.
.
            WebAppContext waContext = new WebAppContext(webDir, "/");            
              waContext.setInitParameter("org.eclipse.jetty.servlet.Default.dirAllowed", "false");
            waContext.setSecurityHandler(basicSecurity);  
            
            waContext.setAttribute("org.eclipse.jetty.server.webapp.ContainerIncludeJarPattern", ".*/[^/]*servlet-api-[^/]*\\.jar$|.*/javax.servlet.jsp.jstl-.*\\.jar$|.*/[^/]*taglibs.*\\.jar$");

            server.setHandler(waContext);
.
.
.

e.g. I had to add

waContext.setAttribute("org.eclipse.jetty.server.webapp.ContainerIncludeJarPattern", ".*/[^/]*servlet-api-[^/]*\\.jar$|.*/javax.servlet.jsp.jstl-.*\\.jar$|.*/[^/]*taglibs.*\\.jar$");

or else in Jetty 9.3.0.M2 I again had the same exception.