{"id":4002,"date":"2014-03-30T07:05:13","date_gmt":"2014-03-30T07:05:13","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2014\/03\/30\/integrating-birt-reports-in-jsp-collection-of-common-programming-errors\/"},"modified":"2014-03-30T07:05:13","modified_gmt":"2014-03-30T07:05:13","slug":"integrating-birt-reports-in-jsp-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2014\/03\/30\/integrating-birt-reports-in-jsp-collection-of-common-programming-errors\/","title":{"rendered":"Integrating Birt reports in JSP-Collection of common programming errors"},"content":{"rendered":"<p>Most likely you have some unnecessary JAR files in your <code>WEB-INF\/lib<\/code> which are clashing with the ones already available with Tomcat. Specifically this class javax\/servlet\/jsp\/tagext\/TagSupport is found in <code>jsp-api.jar<\/code><\/p>\n<p>But at runtime, the tomcat server is finding a different version and this leads to NoClassDefFound error. Check to see if these JARS are duplciated. and remove them from the <code>WEB-INF\/lib<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Most likely you have some unnecessary JAR files in your WEB-INF\/lib which are clashing with the ones already available with Tomcat. Specifically this class javax\/servlet\/jsp\/tagext\/TagSupport is found in jsp-api.jar But at runtime, the tomcat server is finding a different version and this leads to NoClassDefFound error. Check to see if these JARS are duplciated. and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4002","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/4002","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=4002"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/4002\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=4002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=4002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=4002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}