I have built the Java 9 code. Now I am copying the classes into the log4j-api
jar. They have to be placed at META-INF/versions/9. However, when I do this I
am getting an error from the Maven bundle plugin.
[INFO] --- maven-bundle-plugin:3.2.0:manifest (default) @ log4j-api ---
[ERROR] Manifest org.apache.logging.log4j:log4j-api:jar:2.8.2-SNAPSHOT :
Classes found in the wrong directory:
{META-INF/versions/9/org/apache/logging/log4j/util/ReflectionUtil.class=org.apache.logging.log4j.util.ReflectionUtil,
META-INF/versions/9/org/apache/logging/log4j/util/ClassPredicate.class=org.apache.logging.log4j.util.ClassPredicate,
META-INF/versions/9/org/apache/logging/log4j/util/ClassNamePredicate.class=org.apache.logging.log4j.util.ClassNamePredicate}
[ERROR] Error(s) found in manifest configuration
Any idea on how to get around this?
Ralph
> On Mar 15, 2017, at 9:14 AM, Ralph Goers <ralph.go...@dslextreme.com> wrote:
>
> I don’t see a problem with it. What is released will still run fine on Java
> 7. It will just have some Java 9 components in the jar. The release is
> scheduled for late July. I haven’t seen any indication that it will be pushed
> again. I would rather be ready to take advantage of Java 9 on the day it is
> released then be playing catch-up.
>
> Ralph
>
>> On Mar 15, 2017, at 8:38 AM, Mikael Ståldal <mikael.stal...@magine.com
>> <mailto:mikael.stal...@magine.com>> wrote:
>>
>> It would be bad to require Java 9 to build the main project as long as Java
>> 9 is not released.
>>
>> On Wed, Mar 15, 2017 at 4:27 PM, Ralph Goers <ralph.go...@dslextreme.com
>> <mailto:ralph.go...@dslextreme.com>> wrote:
>> I can’t change the JDK from JDK 1.7. The rest of the build must be compiled
>> at Java 7 since that is what we support. I only want to compile the new
>> classes with Java 9.
>>
>> Using a profile is a very good solution. We would have to run the build
>> twice but that would be OK. I will give that a try.
>>
>> Ralph
>>
>>> On Mar 15, 2017, at 8:13 AM, Matt Sicker <boa...@gmail.com
>>> <mailto:boa...@gmail.com>> wrote:
>>>
>>> You can change the JDK from "JDK 1.7 (latest)" to one of the JDK 9
>>> versions. Since there's no official release of 9 yet, they don't seem to
>>> have a "JDK 9 (latest)" profile set up on Jenkins yet.
>>>
>>> As for building this, the best solution I've seen so far basically involves
>>> a bit of manual configuration using some inline ant tasks or similar overly
>>> complicated nonsense which doesn't work well in any IDE to date. It may be
>>> worth investigating the existing maven plugin ecosystem and seeing if we
>>> need a custom plugin developed for this. Could be a useful feature addition
>>> to maven-compiler-plugin, though I haven't tried contributing to Maven yet.
>>>
>>> Using Maven profiles would help with this so that we can still build most
>>> of the project locally with JDK 1.7 or 1.8 as I doubt everyone wants to
>>> install JDK 9 on all their development machines while it's still in beta.
>>>
>>> On 15 March 2017 at 10:07, Ralph Goers <ralph.go...@dslextreme.com
>>> <mailto:ralph.go...@dslextreme.com>> wrote:
>>> I know how to implement the StackWalker code but I don’t quite know how to
>>> get it into the build. The main build needs to keep using Java 7 but of
>>> course the StackWalker stuff needs to be compiled with Java 9. Technically,
>>> I know how I could do that except I have no idea how it would work in
>>> Jenkins. It would also mean that everyone would be required to have Java 9
>>> installed in order to do the build.
>>>
>>> An alternate approach would be to have the Java 9 specific classes in a
>>> separate repo with its own build. It would have to be “released” but we
>>> really wouldn’t need or want to release those jars to Maven Central as they
>>> would only be needed in the Log4j build - the classes would be copied into
>>> the Log4j jar.
>>>
>>> If any of you know we can set a Jenkins variable to point to the latest
>>> Java 9 version that could solve the problem.
>>>
>>> Ralph
>>>
>>> ---------------------------------------------------------------------
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>>>
>>>
>>>
>>>
>>> --
>>> Matt Sicker <boa...@gmail.com <mailto:boa...@gmail.com>>
>>
>>
>>
>>
>> --
>>
>>
>> Mikael Ståldal
>> Senior software developer
>>
>> Magine TV
>> mikael.stal...@magine.com <mailto:mikael.stal...@magine.com>
>> Grev Turegatan 3 | 114 46 Stockholm, Sweden | www.magine.com
>> <http://www.magine.com/>
>>
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