[SOLVED] java.lang.ClassNotFoundException: com.sun.facelets.tag.jsf.ComponentHandler after upgrading from MyFaces 1.1 to MyFaces 2.2

I am trying to migrate a web application from MyFaces 1.1 to 2.2.

I basically followed the first steps under Basic Changes from https://stackoverflow.com/a/4532870/5467214 to upgrade from JSF 1.1 to JSF 2.2:

update web.xml
update faces-config.xml
replace old myfaces jars with version 2.2 jars

For the time being, I intend to keep JSP and replace them with Facelets once the first, presumably "painless" steps of just upgrading JSF are successful.

The web application worked with the old JSF version but after doing the steps described above, I get the following error and stack trace:

java.lang.NoClassDefFoundError: com/sun/facelets/tag/jsf/ComponentHandler
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
    at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1191)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1669)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:348)
    at org.apache.myfaces.shared.util.ClassUtils.classForName(ClassUtils.java:187)
    at org.apache.myfaces.view.facelets.util.ReflectionUtil.forName(ReflectionUtil.java:66)
    at org.apache.myfaces.view.facelets.compiler.TagLibraryConfig.createClass(TagLibraryConfig.java:539)
    at org.apache.myfaces.view.facelets.compiler.TagLibraryConfig.create(TagLibraryConfig.java:466)
    at org.apache.myfaces.view.facelets.compiler.FaceletsCompilerSupport.loadLibraries(FaceletsCompilerSupport.java:157)
    at org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.loadLibraries(FaceletViewDeclarationLanguage.java:2526)
    at org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.createCompiler(FaceletViewDeclarationLanguage.java:2172)
    at org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.initialize(FaceletViewDeclarationLanguage.java:2464)
    at org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.<init>(FaceletViewDeclarationLanguage.java:309)
    at org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguageStrategy.<init>(FaceletViewDeclarationLanguageStrategy.java:52)
    at org.apache.myfaces.view.ViewDeclarationLanguageFactoryImpl.initialize(ViewDeclarationLanguageFactoryImpl.java:104)
    at org.apache.myfaces.view.ViewDeclarationLanguageFactoryImpl.getViewDeclarationLanguage(ViewDeclarationLanguageFactoryImpl.java:73)
    at org.apache.myfaces.application.ViewHandlerImpl.getViewDeclarationLanguage(ViewHandlerImpl.java:183)
    at org.apache.myfaces.application.ViewHandlerImpl.createView(ViewHandlerImpl.java:255)
    at org.jenia.faces.template.handler.ViewHandler.createView(ViewHandler.java:251)
    at javax.faces.application.ViewHandlerWrapper.createView(ViewHandlerWrapper.java:100)
    at org.apache.myfaces.tomahawk.application.ResourceViewHandlerWrapper.createView(ResourceViewHandlerWrapper.java:70)
    at org.apache.myfaces.lifecycle.RestoreViewExecutor.execute(RestoreViewExecutor.java:289)
    at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:196)
    at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:143)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:489)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
    at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:467)
    at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:412)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:201)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: com.sun.facelets.tag.jsf.ComponentHandler
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547)
    ... 54 more

java.lang.NullPointerException
    at net.sf.jsfcomp.chartcreator.ChartListener.afterPhase(ChartListener.java:42)
    at org.apache.myfaces.lifecycle.PhaseListenerManager.informPhaseListenersAfter(PhaseListenerManager.java:117)
    at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:211)
    at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:143)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:489)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
    at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:467)
    at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:412)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:201)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

We use Tomcat7 as a servlet container, IntelliJ Community Edition as IDE and Maven as a build manager and for dependency management.

Since "Tomahawk" appears in the stack trace, I replaced tomahawk-1.1.9.jar with tomahawk21-1.1.14.jar in my /WEB-INF/lib, according to Which jars do I need in order to avoid "NoClassDefFoundError: com/sun/facelets/tag/jsf/ComponentHandler"?. Unfortunately, it didn't solve the problem.

I also couldn't find a tomahawk version specifically for JSF 2.2, neither in the maven repository nor anywhere else.

Would that be necessary to use tomahawk with MyFaces 2.2?

Or does the error stem from something else?