{"id":16219,"date":"2021-04-22T17:58:48","date_gmt":"2021-04-22T15:58:48","guid":{"rendered":"https:\/\/www.dbi-services.com\/blog\/maven-could-not-find-or-load-main-class-org-codehaus-plexus-classworlds-launcher-launcher\/"},"modified":"2021-04-22T17:58:48","modified_gmt":"2021-04-22T15:58:48","slug":"maven-could-not-find-or-load-main-class-org-codehaus-plexus-classworlds-launcher-launcher","status":"publish","type":"post","link":"https:\/\/www.dbi-services.com\/blog\/maven-could-not-find-or-load-main-class-org-codehaus-plexus-classworlds-launcher-launcher\/","title":{"rendered":"Maven: Could not find or load main class org.codehaus.plexus.classworlds.launcher.Launcher"},"content":{"rendered":"<p>Working on Jenkins and Artifactory I often seen options suggesting Maven tool,but what is Maven purpose?How can we use and install it on a Windows system?During this install you may encounter some kind of issues<\/p>\n<h3>Introduction<\/h3>\n<p>Maven is a tool that can be used for building and managing any Java-based project ( In our case we will use it on Jenkins )<br \/>\nMaven builds a project using its project object model (POM) and a set of plugins<br \/>\nMore info about Apache Maven following their site:<br \/>\n<a href=\"https:\/\/maven.apache.org\/index.html\">https:\/\/maven.apache.org\/index.html<\/a><br \/>\nWe will see now how to install it and avoid installation issues<\/p>\n<h3>Installation<\/h3>\n<ul>\n<li>Prerequisites<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAR1DLPREREQ.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-49338\" src=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAR1DLPREREQ.png\" alt=\"\" width=\"692\" height=\"113\" \/><\/a><\/p>\n<ul>\n<li>Install Java<\/li>\n<\/ul>\n<p>You must have Java installed to install Maven<br \/>\n<a href=\"https:\/\/www.oracle.com\/java\/technologies\/javase-downloads.html\">https:\/\/www.oracle.com\/java\/technologies\/javase-downloads.html<\/a><br \/>\nOnce installed you can verify your Java version<br \/>\n<a href=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAR1DLJAVA.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-49340\" src=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAR1DLJAVA.png\" alt=\"\" width=\"691\" height=\"159\" \/><\/a><\/p>\n<ul>\n<li>Install Maven<\/li>\n<\/ul>\n<p>Maven installation link<br \/>\n<a href=\"https:\/\/maven.apache.org\/install.html\">https:\/\/maven.apache.org\/install.html<\/a><br \/>\nThe installation of Apache Maven is a simple process of extracting the archive and adding the `bin` folder with the `mvn` command to the `PATH`<\/p>\n<ul>\n<li>Download the file on first line<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAR1DL.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49341\" src=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAR1DL.png\" alt=\"\" width=\"1901\" height=\"775\" \/><\/a><\/p>\n<ul>\n<li>Create a folder named Maven and uncompress the tar file<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAR1DLPATH.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49342\" src=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAR1DLPATH.png\" alt=\"\" width=\"1624\" height=\"380\" \/><\/a><\/p>\n<h3>Issue encountered when launching a Maven command<\/h3>\n<p>When going into bin folder to start the command mvn -v we get this error<\/p>\n<pre class=\"brush: c; gutter: true; first-line: 1\">C:\\Users\\nso&gt;cd C:\\Program Files\\maven\\apache-maven-3.8.1\\bin\n\nC:\\Program Files\\maven\\apache-maven-3.8.1\\bin&gt;java -version\njava version \"1.8.0_271\"\nJava(TM) SE Runtime Environment (build 1.8.0_271-b09)\nJava HotSpot(TM) 64-Bit Server VM (build 25.271-b09, mixed mode)\n\nC:\\Program Files\\maven\\apache-maven-3.8.1\\bin&gt;mvn -v\nError: Could not find or load main class org.codehaus.plexus.classworlds.launcher.Launcher<\/pre>\n<p>The reason is that environment variable value are not correctly set<\/p>\n<ul>\n<li>Go to environment variable options on your machine:<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAR2A-1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-49345\" src=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAR2A-1.png\" alt=\"\" width=\"720\" height=\"305\" \/><\/a><\/p>\n<ul>\n<li>Add Java home variable<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAR2B.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-49347\" src=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAR2B.png\" alt=\"\" width=\"769\" height=\"830\" \/><\/a><\/p>\n<ul style=\"list-style-type: disc\">\n<li>Add Maven environment variable:<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAR3.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-49350\" src=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAR3.png\" alt=\"\" width=\"754\" height=\"445\" \/><\/a><\/p>\n<ul>\n<li>Define the Maven home<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVARmav.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49373\" src=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVARmav.png\" alt=\"\" width=\"681\" height=\"719\" \/><\/a><\/p>\n<ul style=\"list-style-type: disc\">\n<li>Check if variable are correctly set for JAVA and MAVEN<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAROK.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-49351\" src=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVAROK.png\" alt=\"\" width=\"748\" height=\"152\" \/><\/a><\/p>\n<ul style=\"list-style-type: disc\">\n<li>Test command again to check if Maven is correctly installed and issue fixed<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVRSOK.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49352\" src=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2022\/04\/MAVENVRSOK.png\" alt=\"\" width=\"978\" height=\"322\" \/><\/a><\/p>\n<h3>Conclusion<\/h3>\n<p>Here we are Maven is correctly installed on your Windows post you can now use it for your Jenkins builds and associate it with Artifactory!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Working on Jenkins and Artifactory I often seen options suggesting Maven tool,but what is Maven purpose?How can we use and install it on a Windows system?During this install you may encounter some kind of issues Introduction Maven is a tool that can be used for building and managing any Java-based project ( In our case [&hellip;]<\/p>\n","protected":false},"author":40,"featured_media":16220,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1320],"tags":[],"type_dbi":[],"class_list":["post-16219","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-devops"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Maven: Could not find or load main class org.codehaus.plexus.classworlds.launcher.Launcher - dbi Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dbi-services.com\/blog\/maven-could-not-find-or-load-main-class-org-codehaus-plexus-classworlds-launcher-launcher\/\" \/>\n<meta property=\"og:locale\" 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