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My Raspberry Pi 3 came with Java version 1.8.0_65 installed. I could not update it to a later version using apt-get - I assume there's no Debian repo for it. I do not know how to update it, and installing a newer version does not replace the existing one.
What's the bet way to install/update Java on Raspbian, and keep it updated going forward?
To have all the time the most recent Oracle java installed, you can do check current Java
pi@raspberrypi:~ $ java -version java version "1.8.0_65" Java(TM) SE Runtime Environment (build 1.8.0_65-b17) Java HotSpot(TM) Client VM (build 25.65-b01, mixed mode)
remove OpenJDK
sudo apt-get purge openjdk*
add digital key
sudo apt-key adv --recv-key --keyserver keyserver.ubuntu.com EEA14886
add packet source
sudo vim /etc/apt/sources.list
add following lines
deb http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main
deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main
install Java 8
sudo apt-get update
sudo apt-get install oracle-java8-installer
sudo apt-get install oracle-java8-set-default
remove old Java
sudo apt-get purge openjdk*
sudo apt-get purge java7*
sudo apt-get autoremove
check success
java -version
pi@raspberrypi:~ $ java -version java version "1.8.0_131" Java(TM) SE Runtime Environment (build 1.8.0_131-b11) Java HotSpot(TM) Client VM (build 25.131-b11, mixed mode)
apt-key was pasted with the – long dash, which at some point had to accidentally replace double dashes -- so the command did not work, and resulted in weird error: gpg: conflicting commands. I have edited the answer to correct it.
The following advice by hannes ach and SWilk was successful, but I got the following error:
pi@raspberrypi:~ $ sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com C2518248EEA14886
Executing: /tmp/apt-key-gpghome.hVyJ3FPvDb/gpg.1.sh --recv-keys --keyserver keyserver.ubuntu.com C2518248EEA14886
gpg: failed to start the dirmngr '/usr/bin/dirmngr': No such file or directory
gpg: connecting dirmngr at '/tmp/apt-key-gpghome.hVyJ3FPvDb/S.dirmngr' failed: No such file or directory
gpg: keyserver receive failed: No dirmngr
In order to resolve that, I ran:
sudo apt-get install dirmngr --install-recommends
then
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com C2518248EEA14886
Then, everything worked as expected.
Original info from here https://blog.sleeplessbeastie.eu/2017/11/02/how-to-fix-missing-dirmngr/
If you want new features now it's possible to get version 9 and 10 like this:
wget https://github.com/bell-sw/Liberica/releases/download/10/bellsoft-jre10-linux-arm32-vfp-hflt.debsudo
apt install ./bellsoft-jre10-linux-arm32-vfp-hflt.deb
Liberica for Raspberry Pi: https://www.bell-sw.com/java-for-raspberry-pi.html
Have you tried this guide yet? http://elinux.org/RPi_Java#Installing_Java_on_Raspberry_Pi
OpenJDK
sudo apt-get update
sudo apt-get install openjdk-7-jdk
Oracle Java 8
wget http://www.java.net/download/JavaFXarm/jdk-8-ea-b36e-linux-arm-hflt-29_nov_2012.tar.gz
tar zxf jdk-8-ea-b36e-linux-arm-hflt-29_nov_2012.tar.gz
rm jdk-8-ea-b36e-linux-arm-hflt-29_nov_2012.tar.gz
sudo mv ./jdk1.8.0/ /opt/
sudo chown root:root -R /opt/jdk1.8.0/
sudo ln -s /opt/jdk1.8.0/ /opt/jdk8
Edit sudo nano -w /etc/profile and add
PATH="$PATH":/opt/jdk8/bin
JAVA_HOME=/opt/jdk8
java -version
to see if java is working
/usr/bin/java
Aug 25, 2016 at 8:52
sudo update-alternatives --config java; sudo update-alternatives --config java and only needs to be done once.