运行Maven码头导致依赖错误

Question

I've this wired java compilation error when I start jetty. I'm running naven build and it gives me success, however when i run the mvn jetty:run command, it gives the following error:

EXCEPTION org.apache.jasper.JasperException: PWC6033: Error in Javac compilation for JSP||PWC6199: Generated servlet error:|org.apache.jsp.tag.web.ui.static_tag is not abstract and does not override abstract method getDependants() in org.apache.jasper.runtime.JspSourceDependent||PWC6199: Generated servlet error:|getDependants() in org.apache.jsp.tag.web.ui.static_tag cannot implement getDependants() in org.apache.jasper.runtime.JspSourceDependent|  return type java.util.List<java.lang.String> is not compatible with java.util.Map<java.lang.String,java.lang.Long>||
at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:129)
at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:299)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:392)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:453)

I'm using the maven-jetty-plugin for running jetty. I've tried re-installing the environment that I'm currently working, and also checkout my project ina different directory. Nothing has worked so far. Does have nay ideas what might have gone wrong?

Answer 1

Your problem would be one of the followings:

• You have a dependency to glassfish in your pom.xml: This was the problem in my case

• You are using a different version of servlet-api than your jetty uses. To solve this you can add provided tag to your servlet-api dependency that makes the jetty to use its own servlet version:

  javax.servlet servlet-api 3.2 provided

Answer 2

Using the latest Jetty plugin helped me

http://www.eclipse.org/jetty/documentation/current/jetty-maven-plugin.html this link points to the root cause of the problem https://support.lucidworks.com/hc/en-us/articles/201784186-Error-in-Javac-compilation-for-JSP-in-LucidWorks-Search-UI

FYI my plugin configuration

        <plugin>
            <groupId>org.eclipse.jetty</groupId>
            <artifactId>jetty-maven-plugin</artifactId>
            <version>9.3.7.v20160115</version>
            <configuration>
                <scanIntervalSeconds>10</scanIntervalSeconds>
            </configuration>
        </plugin>