Java Unsupported major. Problem. Run a jar on Debian 7. Exception in thread main java. Unsupported. Class. Version. Error. commkyongwhoisjobRipe. Crawl. Job Unsupported major. Oracle has various bundled Java packages available for download Java Standard Edition SE, Java Runtime Environment JRE, Software Development Kit SDK, EE. How to Install Oracle Java on Ubuntu Linux. This tutorial will cover the installation of 32bit and 64bit Oracle Java 7 currently version number 1. JDKJRE. Alerte aux fausses mises jour Java Mises jour factices de Java Java est un langage de programmation et une technologie prsente partout, dont dans tous les. Oracle Java 8 is now stable. Below youll find instructions on how to install it in Ubuntu or Debian via a PPA repository. The PPA supports both 32bit and 64bit as. Symantec helps consumers and organizations secure and manage their informationdriven world. Our software and services protect against more risks at more points, more. Tiny Java Web Server and Servlet Container. Miniature JWS. European quality software made in USA with Android SSL support Truth is ever to be found in. I get this error on my UNIX server, when running my java server Exception in thread Thread0 java. OutOfMemoryError unable to create new native thread at java. Class. Loader. define. Class. 1Native Method. Class. Loader. define. ClassClass. Loader. Secure. Class. Loader. ClassSecure. Class. Question How do I Install Java on Ubuntu or Debian OS Answer If Java is not installed, youll get the following error message when you do java version. Loader. java 1. 42. URLClass. Loader. ClassURLClass. Loader. URLClass. Loader. URLClass. Loader. URLClass. Loader1. URLClass. Loader. Access. Controller. PrivilegedNative Method. URLClass. Loader. ClassURLClass. Loader. Class. Loader. load. ClassClass. Loader. LauncherApp. Class. Loader. load. ClassLauncher. Class. Loader. load. ClassClass. Loader. A quick check on the Java version, shows the Debian is using 1. Open. JDK Runtime Environment Iced. Tea. 6 1. 1. 3. 3 6b. Open. JDK 6. 4 Bit Server VM build 2. Reason. This is because the jar is compiled with JDK 1. JDK 1. 6 environment. Refer to the following Wikipedia Java class reference. J2. SE 8 5. 2 0x. J2. SE 7 5. 1 0x. J2. SE 6. 0 5. 0 0x. J2. SE 5. 0 4. 9 0x. JDK 1. 4 4. 8 0x. JDK 1. 3 4. 7 0x. F hex. JDK 1. 2 4. Java Runtime Environment Debian SqueezeE hex. JDK 1. 1 4. D hex. P. S major. JDK 1. For example, if you compiled your jar with JDK 1. JDK 1. 5 environment, the error message will change to this. Unsupported major. Solution. To fix it, download JDK 7, and change the default JDK from 1. Download and install openjdk 7 jdk. Java Runtime Environment Debian WheezyChange the default Java to 1. Carburetor Serial Numbers on this page. Working on Debian like system only. There are 2 choices for the alternative java providing usrbinjava. Selection Path Priority Status. Press enter to keep the current choice, or type selection number 2. Open. JDK Runtime Environment Iced. Tea 2. 4. 7 7u. Open. JDK 6. 4 Bit Server VM build 2. How To Install Oracle Java 8 In Debian Via Repository JDK8 Web Upd. Ubuntu Linux blog. And thats it, Oracle Java 8 should now be installed and you should get automatic updates for future Oracle Java 8 versions, under Debian. Update October 2. Previously, this package would increment the Java priority to make it default. The oracle java. Java priority to 1. Java packages you may have installed for instance, if Java 7 is also installed, Java 8 becomes default, but if Java 9 is installed, Java 8 doesnt become default. To make Java 8 default, you must install the oracle java. Java environment variables and sets it as default, which I added as a Recommended package to oracle java. For instance, in Ubuntu, recommended packages are automatically installed, so oracle java. In Linux Mint on the other hand, recommended packages are not installed by default, so you must install this package manually if you want to set Oracle Java 8 as default. So, if you want to set Oracle Java 8 as default, no matter what other Java versions are installed, make sure that you install the oracle java. Oracle Java Installer package in Ubuntu, but not in Linux Mint sudo apt get install oracle java. If you dont want to make Oracle Java 8 default it might still be set as default, depending on what other Java versions you may have installed, install the oracle java. Note removing the oracle java. I have yet to find a way to do this properly. If you dont want to set it as default, remove both oracle java. Tip if youre behind a firewall router that blocks some of the redirects required to download the Oracle Java archive, you can download the JDK tar. After installing Oracle Java and the oracle java. Java version on your system by using these commands java version. This should display something like this java version 1. JavaTM SE Runtime Environment build 1. Java Hot. SpotTM 6. Bit Server VM build 2. Or javac version. Which should display something like this javac 1. For how to install Oracle Java 7 in Debian, see THIS article. For Oracle Java 9, see THIS article.