On 11/27/2017 11:00 AM, Ed Greshko wrote:
On 11/27/17 16:53, cen wrote:
> On 11/27/2017 01:51 AM, Ed Greshko wrote:
>> On 11/27/17 07:39, Ed Greshko wrote:
>>> I suppose I could give it a try with java-9 on a VM. If that is what you
require.
>> As previously noted. I got....
>>
>> [egreshko@acer ~]$ mvn -v
>> Apache Maven 3.5.0 (Red Hat 3.5.0-6)
>> Maven home: /usr/share/maven
>> Java version: 1.8.0_151, vendor: Oracle Corporation
>> Java home: /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.151-1.b12.fc27.x86_64/jre
>> Default locale: en_US, platform encoding: UTF-8
>> OS name: "linux", version: "4.13.15-300.fc27.x86_64", arch:
"amd64", family: "unix"
>>
>> on my default testing system.
>>
>> Note that the Java home points to a "jre" directory.
>>
>> Installing java-9 on a VM shows there to be no jre supplied with java-9. So, I
think
>> one must be content with running java-1.8 with maven.
>>
> That can't be true because I used maven with java 9 in F26 from updates-testing
> with absolutely no problems. And I have same problem with java 8 anyway.
>
> After removing all versions of java and maven with dnf I tried to do a fresh
> install and now even that fails:
>
> Install package 'maven' to provide command 'mvn'? [N/y] y
>
>
> * Waiting in queue...
> * Loading list of packages....
> * Downloading details about the software sources....
> * Loading list of packages....
> * Downloading details about the software sources....
> * Loading list of packages....
> The following packages have to be installed:
> java-1.8.0-openjdk-devel-1:1.8.0.151-1.b12.fc27.x86_64 OpenJDK Development
> Environment
> maven-1:3.5.0-6.fc27.noarch Java project management and project comprehension
tool
> Proceed with changes? [N/y] y
>
>
> * Waiting in queue...
> * Waiting for authentication...
> * Waiting in queue...
> * Downloading packages...
> * Requesting data...
> * Testing changes...
> * Installing packages...
> /usr/bin/mvn: Failed to set JAVACMD
> The JAVA_HOME environment variable is not defined correctly
> This environment variable is needed to run this program
> NB: JAVA_HOME should point to a JDK not a JRE
>
> Something on my system seems to be off and I have no idea what.
2 things. First, you noticed that part of the message you got during the install
says....
The following packages have to be installed:
java-1.8.0-openjdk-devel-1:1.8.0.151-1.b12.fc27.x86_64 OpenJDK Development
Environment
Which is telling you that maven is depending on java-1.8.
Second, a question. When you ran the command did you have JAVA_HOME set? If you
did, how about trying it again without it being set?
Yes, apparently I did have JAVA_HOME set. After unsetting the variable
and reinstalling maven again it completed successfully. However, problem
persists:
mvn -version
/usr/bin/mvn: Failed to set JAVACMD
The JAVA_HOME environment variable is not defined correctly
This environment variable is needed to run this program
NB: JAVA_HOME should point to a JDK not a JRE
One other thing I found after install is this:
pwd
/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.151-1.b12.fc27.x86_64/bin
./java -version
Error: could not find libjava.so
Error: Could not find Java SE Runtime Environment.
So this java 8 install as a weak maven dependency seems to be borked.
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