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OpenJDK or JDK?

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http://askubuntu.com – I'm new to Java development under Ubuntu. When I typed javac in the terminal, it prompted me to install OpenJDK and a bunch of other JDKs. I want to know if there is any difference between OpenJDK 7 and Oracle's JDK 7. Are they basically the same? Thanks. (HowTos)

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Submitted by missing on 02/08/2013 – Made popular on 02/08/2013

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I searched askubuntu and tried the suggestions but failed .I try this question:How to completely uninstall/reinstall Java

1.I run sudo apt-cache search openjdk get the following:

openjdk-6-dbg - Java runtime based on OpenJDK (debugging symbols) openjdk-6-demo - Java runtime based on OpenJDK (demos and examples) openjdk-6-doc - OpenJDK Development Kit (JDK) documentation openjdk-6-jdk - OpenJDK D

I have recently installed openjdk just to try out writing some java application

$ dpkg -l | grep jdk ii openjdk-7-jdk 7u7-2.3.2a-0ubuntu0.12.04.1 OpenJDK Development Kit (JDK) ii openjdk-7-jre 7u7-2.3.2a-0ubuntu0.12.04.1 OpenJDK Java runtime, using Hotspot JIT ii openjdk-7-jre-headless 7u7-2.3.2a-0ubuntu

Due to the new Java license, Oracle JDK was removed from Ubuntu repository and it doesn’t be hosted in the PPA. If you want to use Oracle Java instead of OpenJDK Java Runtime in Ubuntu.

I am currently at a loss as to why this is happening. I did some basic research by running:

whereis javac

-and-

find / -name javac

...and I came up with nothing I searched the web for answers but they all seem to focus on javac existing on the filesystem, and that needs to be done is to restore a missing sym-link.

Has anyone run up against this issue and found a solution ?

I have attempted t

Ubuntu Server Lucid (10.04) works perfect on my good old i586, but it lacks the CMOV instruction required for the openjdk-6-jdk (6b20-0ubuntu1 ~ 01.09.10-10.04.3), this "bug" been fixed in version 1.10 of OpenJDK (http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2011-March/013371....)

Is there an way to install (or repack/recompile) openjdk-6-jdk (6b22-1.10.4-0ubuntu1~11.04.2) for Lucid?

O

Hi all,

I am new to ubuntu.I tried to install jdk 7 using the command

sudo apt-get install openjdk-7-jdk

But I am getting the following error :

Errors were encountered while processing: oracle-java7-installer libaccess-bridge-java libaccess-bridge-java-jni openjdk-7-jre openjdk-7-jdk E: Sub-process /usr/bin/dpkg returned an error code (1)

How to rectify the above error

Thanks in

On March 7, in a security notice Canonical published details about OpenJDK 7 vulnerabilities for its Ubuntu 12.10 (Quantal Quetzal) operating systems.

According to Canonical, OpenJDK could be made to crash or run programs as you login if it opened a specially crafted file.

USN-1755-1 fixed vulnerabilities in OpenJDK 6.

I was desperately trying to get tomcat running, but sometimes it just stopped responding. A couple of hours later, i just typed in java -version and about one of ten times it stucked too.

$ java -version java version "1.7.0_09" OpenJDK Runtime Environment (IcedTea7 2.3.3) (7u9-2.3.3-0ubuntu1~12.04.1) OpenJDK Client VM (build 23.2-b09, mixed mode, sharing)

I have no idea, why this sometimes work

Sun java instead of OpenJDK 2 years 43 weeks ago

Heya,

How do I swap sun java for openjdk on OpenSuse 11.3 64-bit?

I'd like to do this as I've often encountered problems with OpenJDK. I need to have full java support in my computer.

Best regards,

Daqar