I now have activated the Windows installaton I had to buy together with my computer. It's preferences dialogue does not work at all, and I have found that I am not the only one with this problem. OK, this problem is solved by my Oracle Account but my Eclipse (3.8) still does not remember anything about Java, Ant, etc. It's just that on the PPA's web page I had seen an "openjdk-6" so I though it might work, too. You are right, installing openjdk-7-jdk with apt-get worked. I got it through my Oracle account in the meantime. Strange as it may seem, I really need jdk 6 (jdk 7 added so many abstract methods to libraries that break my applications). I tried that but it's an endless loop, I am always told that there is no installation candidate. Openjdk- 6-jre-headless: i386 icedtea-netx:i386 icedtea-netx-common icedtea-netx default- jre-headless default- jre-headless: i386 I tried "apt-get install openjdk-6-jre", and it told me there was no such installation candidate but the package had been replaced by the following: So I opened what now is in place of the late Ubuntu Software Center and typed "JDK". I develop for older application server versions, so I need those older JDKs. I found that my openjdk 6 and 7 (/usr/lib/jvm) were gone, with only openjdk 8 remaining. When the upgrade was through, all my Eclipse Java projects were dead. I agreed assuming that I could always reinstall anything I need. (Note that because of this being the case, it's unlikely you will be able to install Xtreme Download Manager if it doesn't work with newer OpenJDK versions since OpenJDK 6 or 7 judging by your OpenJDK version string, you're on Ubuntu 18.04).This weekend I upgraded Ubuntu 15.10 to 16.04, which turned out to be a very bad idea.ĭuring upgrade the system informed me that several hundred packages were no longer needed and could be uninstalled. Continued use of those JREs is not advised for security reasons. However OpenJDK 6 and 7 are VERY old and should not be used, as they are not updated, and have not received security updates in a long time. OpenJDK 7 was removed on March 30, 2016, because OpenJDK 8 (and later) had superseded it (this was referenced in Ubuntu Bug #1563986).īecause both packages are removed from Ubuntu, the only way you could get them is from installing manually from the older repository versions of the packages (which could be a lengthy, difficult process to get all the dependencies they need due to their age) or try and find a PPA from another source to make it work. OpenJDK 6 was removed on March 29, 2016, because OpenJDK 7 and 8 had superseded it (this is referenced in Ubuntu Bug #1563578). OpenJDK 6 and 7 were both removed from Ubuntu at the 16.04 development cycle.
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