Maven Java App on Tomcat NoClassDefFoundError Even With Jar Included - spring

Question

I have an application running on Tomcat that I've just recently converted to use Maven. My pom file is:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>Name</groupId>
<artifactId>Name</artifactId>
<version>0.0.1</version>
<name>Name</name>
<packaging>war</packaging>
<properties>
<maven.compiler.source>1.6</maven.compiler.source>
<maven.compiler.target>1.6</maven.compiler.target>
</properties>
<build>
<sourceDirectory>src/main/java</sourceDirectory>
<resources>
<resource>
<directory>src/main/resources</directory>
</resource>
<resource>
<directory>src/test/resources</directory>
</resource>
</resources>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.4</version>
<configuration>
<webResources>
<resource>
<directory>${basedir}/src/main/webapp/WEB-INF</directory>
<filtering>true</filtering>
<targetPath>WEB-INF</targetPath>
</resource>
</webResources>
<failOnMissingWebXml>true</failOnMissingWebXml>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>inf</groupId>
<artifactId>inf-core</artifactId>
<version>7.1</version>
</dependency>
<dependency>
<groupId>inf</groupId>
<artifactId>inf-security</artifactId>
<version>6.2</version>
</dependency>
<dependency>
<groupId>net-components</groupId>
<artifactId>netcomponents</artifactId>
<version>1.3.8a</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>antlr</groupId>
<artifactId>antlr</artifactId>
<version>2.7.7</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>aopalliance</groupId>
<artifactId>aopalliance</artifactId>
<version>1.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib-nodep</artifactId>
<version>3.2.5</version>
<scope>compile</scope>
</dependency>
<!-- ::::::::::::::::::::::: -->
<!-- ::: springframework ::: -->
<!-- ::::::::::::::::::::::: -->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc-portlet -->
<!--
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc-portlet</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
-->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-tx -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-beans -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.security/spring-security-core -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-core</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-orm -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>3.1.4.RELEASE</version><!-- wersja wymagana przez ehcache-core 2.4.8-->
<exclusions>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
</exclusion>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
</exclusion>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
</exclusion>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
</exclusion>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- ::::::::::::::: -->
<!-- ::: commons ::: -->
<!-- ::::::::::::::: -->
<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.neethi/neethi -->
<dependency>
<groupId>org.apache.neethi</groupId>
<artifactId>neethi</artifactId>
<version>3.0.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-net/commons-net -->
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>3.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-fileupload/commons-fileupload -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-beanutils/commons-beanutils -->
<dependency>
<groupId>commons-beanutils</groupId>
<artifactId>commons-beanutils</artifactId>
<version>1.9.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-digester/commons-digester -->
<dependency>
<groupId>commons-digester</groupId>
<artifactId>commons-digester</artifactId>
<version>2.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.5</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-logging/commons-logging -->
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-codec/commons-codec -->
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.10</version>
</dependency>
<!-- :::::::::::::: -->
<!-- ::: apache ::: -->
<!-- :::::::::::::: -->
<!-- https://mvnrepository.com/artifact/org.apache.tomcat/tomcat-jdbc -->
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jdbc</artifactId>
<version>8.5.15</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.geronimo.specs/geronimo-activation_1.1_spec -->
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-activation_1.1_spec</artifactId>
<version>1.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.geronimo.specs/geronimo-javamail_1.4_spec -->
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-javamail_1.4_spec</artifactId>
<version>1.7.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.geronimo.specs/geronimo-jaxws_2.2_spec -->
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-jaxws_2.2_spec</artifactId>
<version>1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.geronimo.specs/geronimo-ws-metadata_2.0_spec -->
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-ws-metadata_2.0_spec</artifactId>
<version>1.1.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.15</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.15</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml-schemas -->
<!--
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml-schemas</artifactId>
<version>3.15</version>
</dependency>
-->
<!-- https://mvnrepository.com/artifact/org.apache.cxf/cxf-rt-frontend-jaxws -->
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-frontend-jaxws</artifactId>
<version>3.0.13</version>
</dependency>
<!-- ::::::::::::- -->
<!-- ::: log4j ::: -->
<!-- ::::::::::::: -->
<!-- https://mvnrepository.com/artifact/log4j/log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- ::::::::::::::::::::::::: -->
<!-- ::: fasterxml.jackson ::: -->
<!-- ::::::::::::::::::::::::: -->
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.5.5</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.5.5</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.5.5</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-core -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.1.12.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-validator -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>4.1.0.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.hibernate.javax.persistence/hibernate-jpa-2.0-api -->
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-ehcache -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-ehcache</artifactId>
<version>4.1.12.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.hibernate.common/hibernate-commons-annotations -->
<dependency>
<groupId>org.hibernate.common</groupId>
<artifactId>hibernate-commons-annotations</artifactId>
<version>4.0.5.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.itextpdf/itextpdf -->
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.5.12</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/junit/junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/jcifs/jcifs -->
<dependency>
<groupId>jcifs</groupId>
<artifactId>jcifs</artifactId>
<version>1.3.17</version>
<exclusions>
<exclusion>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- https://mvnrepository.com/artifact/org.jasypt/jasypt -->
<dependency>
<groupId>org.jasypt</groupId>
<artifactId>jasypt</artifactId>
<version>1.9.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.xml.bind/jaxb-api -->
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.2.11</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.xml.bind/jaxb-impl -->
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.2.11</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.xml.stream/stax-api -->
<!--
<dependency>
<groupId>javax.xml.stream</groupId>
<artifactId>stax-api</artifactId>
<version>1.0-2</version>
</dependency>
-->
<!-- https://mvnrepository.com/artifact/net.sf.ehcache/ehcache -->
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache</artifactId>
<version>2.4.8</version>
<type>pom</type>
</dependency>
<!-- https://mvnrepository.com/artifact/displaytag/displaytag -->
<dependency>
<groupId>displaytag</groupId>
<artifactId>displaytag</artifactId>
<version>1.2</version>
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-jdk14</artifactId>
</exclusion>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- https://mvnrepository.com/artifact/dom4j/dom4j -->
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.mail/dsn -->
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>dsn</artifactId>
<version>1.5.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.mail/mailapi -->
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>mailapi</artifactId>
<version>1.5.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.mail/smtp -->
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>smtp</artifactId>
<version>1.5.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.mail/pop3 -->
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>pop3</artifactId>
<version>1.5.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.mail/imap -->
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>imap</artifactId>
<version>1.5.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.mail/gimap -->
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>gimap</artifactId>
<version>1.5.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-log4j12 -->
<!--
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.25</version>
<scope>test</scope>
</dependency>
-->
<!-- https://mvnrepository.com/artifact/org.slf4j/jcl-over-slf4j -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>1.7.25</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-jdk14 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-jdk14</artifactId>
<version>1.7.25</version>
<!-- <scope>test</scope> -->
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet.jsp.jstl/jstl -->
<dependency>
<groupId>javax.servlet.jsp.jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet.jsp.jstl/jstl-api -->
<dependency>
<groupId>javax.servlet.jsp.jstl</groupId>
<artifactId>jstl-api</artifactId>
<version>1.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>jasper-el</artifactId>
<version>6.0.26</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.ws.rs/jsr311-api -->
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>jsr311-api</artifactId>
<version>1.1.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.javassist/javassist -->
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.19.0-GA</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.tiles/tiles-core -->
<dependency>
<groupId>org.apache.tiles</groupId>
<artifactId>tiles-core</artifactId>
<version>2.2.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.tiles/tiles-api -->
<dependency>
<groupId>org.apache.tiles</groupId>
<artifactId>tiles-api</artifactId>
<version>2.2.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.tiles/tiles-servlet -->
<dependency>
<groupId>org.apache.tiles</groupId>
<artifactId>tiles-servlet</artifactId>
<version>2.2.2</version>
</dependency>
</dependencies>
</project>
Now, when I start Tomcat and run my application, I get the following Exception:
HTTP Status 500 - Handler processing failed; nested exception is java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config
type Exception report
message Handler processing failed; nested exception is java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config
description The server encountered an internal error that prevented it from fulfilling this request.
exception
org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:972)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
<my classes and method>
root cause
java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config
org.springframework.web.servlet.support.JstlUtils.exposeLocalizationContext(JstlUtils.java:97)
org.springframework.web.servlet.view.JstlView.exposeHelpers(JstlView.java:135)
org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:211)
org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:262)
org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1180)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:950)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
<my classes and method>
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.32 logs.
Apache Tomcat/7.0.32
In my /WEB-INF/lib folder, I have the following jars:
activation-1.1.jar
antlr-2.7.7.jar
aopalliance-1.0.jar
asm-3.3.1.jar
cglib-nodep-3.2.5.jar
commons-beanutils-1.9.3.jar
commons-codec-1.10.jar
commons-collections-3.2.2.jar
commons-collections4-4.1.jar
commons-digester-2.1.jar
commons-fileupload-1.3.3.jar
commons-io-2.5.jar
commons-lang-2.3.jar
commons-lang3-3.6.jar
commons-logging-1.2.jar
commons-net-3.6.jar
curvesapi-1.04.jar
cxf-core-3.0.13.jar
cxf-rt-bindings-soap-3.0.13.jar
cxf-rt-bindings-xml-3.0.13.jar
cxf-rt-databinding-jaxb-3.0.13.jar
cxf-rt-frontend-jaxws-3.0.13.jar
cxf-rt-frontend-simple-3.0.13.jar
cxf-rt-transports-http-3.0.13.jar
cxf-rt-ws-addr-3.0.13.jar
cxf-rt-ws-policy-3.0.13.jar
cxf-rt-wsdl-3.0.13.jar
displaytag-1.2.jar
dom4j-1.6.1.jar
dsn-1.5.6.jar
ehcache-core-2.4.3.jar
ehcache-terracotta-2.4.8.jar
el-api-6.0.26.jar
geronimo-activation_1.1_spec-1.1.jar
geronimo-javamail_1.4_spec-1.7.1.jar
geronimo-jaxws_2.2_spec-1.2.jar
geronimo-ws-metadata_2.0_spec-1.1.3.jar
gimap-1.5.6.jar
hibernate-commons-annotations-4.0.5.Final.jar
hibernate-core-4.1.12.Final.jar
hibernate-ehcache-4.1.12.Final.jar
hibernate-jpa-2.0-api-1.0.1.Final.jar
hibernate-validator-4.1.0.Final.jar
imap-1.5.6.jar
inf-core-7.1.jar
inf-security-6.2.jar
itext-1.3.jar
itextpdf-5.5.12.jar
jackson-annotations-2.5.5.jar
jackson-core-2.5.5.jar
jackson-databind-2.5.5.jar
jasper-el-6.0.26.jar
jasypt-1.9.2.jar
javassist-3.19.0-GA.jar
javax.mail-1.5.6.jar
jaxb-api-2.2.11.jar
jaxb-core-2.2.11.jar
jaxb-impl-2.2.11.jar
jboss-logging-3.1.0.GA.jar
jboss-logging-annotations-1.2.0.Beta1.jar
jboss-transaction-api_1.1_spec-1.0.0.Final.jar
jcifs-1.3.17.jar
jcl-over-slf4j-1.7.25.jar
jcl104-over-slf4j-1.4.2.jar
jsr311-api-1.1.1.jar
jstl-1.2.jar
log4j-1.2.17.jar
mailapi-1.5.6.jar
neethi-3.0.3.jar
netcomponents-1.3.8a.jar
poi-3.15.jar
poi-ooxml-3.15.jar
poi-ooxml-schemas-3.15.jar
pop3-1.5.6.jar
slf4j-api-1.7.25.jar
slf4j-jdk14-1.7.25.jar
slf4j-log4j12-1.4.2.jar
smtp-1.5.6.jar
spring-aop-3.1.4.RELEASE.jar
spring-asm-3.1.4.RELEASE.jar
spring-beans-3.1.4.RELEASE.jar
spring-context-3.1.4.RELEASE.jar
spring-context-support-3.1.4.RELEASE.jar
spring-core-3.1.4.RELEASE.jar
spring-expression-3.1.4.RELEASE.jar
spring-jdbc-3.1.4.RELEASE.jar
spring-orm-3.1.4.RELEASE.jar
spring-security-core-3.1.4.RELEASE.jar
spring-tx-3.1.4.RELEASE.jar
spring-web-3.1.4.RELEASE.jar
spring-webmvc-3.1.4.RELEASE.jar
stax-api-1.0-2.jar
stax-api-1.0.1.jar
stax2-api-3.1.1.jar
terracotta-toolkit-1.3-runtime-3.5.0.jar
tiles-api-2.2.2.jar
tiles-core-2.2.2.jar
tiles-servlet-2.2.2.jar
tomcat-jdbc-8.5.15.jar
tomcat-juli-8.5.15.jar
validation-api-1.0.0.GA.jar
woodstox-core-asl-4.2.0.jar
wsdl4j-1.6.3.jar
xml-apis-1.0.b2.jar
xml-resolver-1.2.jar
xmlbeans-2.6.0.jar
xmlschema-core-2.2.1.jar
So, I appear to have the correct jar (jstl-1.2.jar) for the javax/servlet/jsp/jstl/core/Config class, so why do I get the above Exception when trying to load my application? I've been stuck on this for a full day and am stumped as to what I'm missing. Thank you for any help!

Answer 1

You declared the dependency as "provided" but it is not provided by Tomcat. So just remove <scope>provided</scope> to make Tomcat use the one from the /WEB-INF/lib folder.
<dependency>
<groupId>javax.servlet.jsp.jstl</groupId>
<artifactId>jstl-api</artifactId>
<version>1.2</version>
</dependency>
Update:
Add this dependency:
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>