Update-alternatives: using /usr/lib/jvm/jdk1.8. Press enter to keep the current choice, or type selection number: 2
#Downgrade to java 7 update 45 manual#
* 3 /usr/lib/jvm/jdk1.8.0/bin/java 1 manual mode
There are 3 choices for the alternative java (providing /usr/bin/java).Ġ /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java 1071 auto modeġ /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java 1071 manual modeĢ /usr/lib/jvm/jdk1.7.0/bin/java 1 manual mode You will see output similar to the one below - choose the number of new jdk1.7.0 (folder_name) - for example 2 in this list (unless you have have never installed Java in your computer in which case a sentence saying There is nothing to configure will appear): $ sudo update-alternatives -config java Sudo update-alternatives -install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/folder_name/bin/javaws" "$LNUM" Sudo update-alternatives -install "/usr/bin/javac" "javac" "/usr/lib/jvm/folder_name/bin/javac" "$LNUM" Sudo update-alternatives -install "/usr/bin/java" "java" "/usr/lib/jvm/folder_name/bin/java" "$LNUM"
Don't forget replace path_to_jdk_folder and folder_name: LNUM=$ If there is no errors and your java list is not empty, run this set of commands. Sudo update-alternatives -install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/folder_name/bin/javaws" 1 Sudo update-alternatives -install "/usr/bin/javac" "javac" "/usr/lib/jvm/folder_name/bin/javac" 1 Sudo update-alternatives -install "/usr/bin/java" "java" "/usr/lib/jvm/folder_name/bin/java" 1 Sudo mv path_to_jdk_folder /usr/lib/jvm/folder_name Don't forget replace path_to_jdk_folder and folder_name: sudo mkdir /usr/lib/jvm If it is saying update-alternatives: error: no alternatives for java run this set of commands. Run sudo update-alternatives -list java to check if you have configured java already. Path_to_jdk_folder - /home/c0rp/Downloads/jdk1.7.0 I'm assuming that path to this new extracted folder is path_to_jdk_folder and folder name is folder_name, you should manually change it before executing commands below. Check carefully this folder name, because we will use it the next step. The JDK package is extracted into jdk.xxx directory. I took out the instruction and changed it a little bit. Here is great manual about installing java.
#Downgrade to java 7 update 45 download#
Oracle may ask you to sign up before download Choose tar.gz depending on your architecture, I highlighted two of them that fits Ubuntu: And you see something like screenshot below. The IBM Java for AIX Service Information and Downloads web page provides a list of all versions and upgrades (APAR) for the IBM Java for AIX. If you unsure what to choose, choose Development Kit - it will cover all your needs Determine the desired version, build, Service Refresh (SR), and/or Fix Pack (FP) of the IBM Java for AIX to be installed, upgraded, or downgraded.
Click DownloadĬhoose Java SE 7 on the next page and you will see web-page where you can choose specific Java version. Go to official java download page, scroll down to the bottom of the page until you see Previous Releases.
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