{"id":35,"date":"2021-01-12T08:58:58","date_gmt":"2021-01-12T08:58:58","guid":{"rendered":"https:\/\/veltzer.net:8890\/?p=35"},"modified":"2021-01-12T08:58:58","modified_gmt":"2021-01-12T08:58:58","slug":"switching-java-versions-on-a-debian-ubuntu-system","status":"publish","type":"post","link":"https:\/\/veltzer.net:8890\/switching-java-versions-on-a-debian-ubuntu-system\/","title":{"rendered":"Switching Java versions on a Debian\/Ubuntu system"},"content":{"rendered":"\n<p>I recently found some issues with the openjdk Ubuntu\/Debian default Java implementation. Specifically I had issues with their web start support (javaws). I found that the Sun implementation of Java did not have such a deficiency and the Sun implementation is available through the regular Ubuntu\/Debian package sources. I installed the Sun implementation and wanted to switch the default Java to that version.<\/p>\n\n\n\n<p>So what have I found out ?<\/p>\n\n\n\n<p>When you want to switch to the Sun implementation:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo update-java-alternatives --set java-6-sun<\/code><\/pre>\n\n\n\n<p>When you want to go back to the openjdk implementation:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo update-java-alternatives --set java-6-openjdk<\/code><\/pre>\n\n\n\n<p>Notice that once you do any of the above you leave \u201cauto\u201d mode which means that new installation of Java implementation will <strong>not<\/strong> switch your default one. If that is what you want then ok. If not you can return to \u201cauto\u201d mode with:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo update-java-alternatives --auto<\/code><\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I recently found some issues with the openjdk Ubuntu\/Debian default Java implementation. Specifically I had issues with their web start support (javaws). I found that the Sun implementation of Java did not have such a deficiency and the Sun implementation is available through the regular Ubuntu\/Debian package sources. I installed the Sun implementation and wanted &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/veltzer.net:8890\/switching-java-versions-on-a-debian-ubuntu-system\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Switching Java versions on a Debian\/Ubuntu system&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[10],"tags":[26,13,27,8,21,12,7],"_links":{"self":[{"href":"https:\/\/veltzer.net:8890\/wp-json\/wp\/v2\/posts\/35"}],"collection":[{"href":"https:\/\/veltzer.net:8890\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/veltzer.net:8890\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/veltzer.net:8890\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/veltzer.net:8890\/wp-json\/wp\/v2\/comments?post=35"}],"version-history":[{"count":1,"href":"https:\/\/veltzer.net:8890\/wp-json\/wp\/v2\/posts\/35\/revisions"}],"predecessor-version":[{"id":36,"href":"https:\/\/veltzer.net:8890\/wp-json\/wp\/v2\/posts\/35\/revisions\/36"}],"wp:attachment":[{"href":"https:\/\/veltzer.net:8890\/wp-json\/wp\/v2\/media?parent=35"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/veltzer.net:8890\/wp-json\/wp\/v2\/categories?post=35"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/veltzer.net:8890\/wp-json\/wp\/v2\/tags?post=35"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}