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https://issues.apache.org/jira/browse/SLING-7644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16461997#comment-16461997
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Carsten Ziegeler commented on SLING-7644:
-----------------------------------------
As version 2.3.4 is mentioned in our parent pom, it's impossible to build our
java 7 based modules with Java 7.
So we have two options, either move back to 2.3.2 for our parent pom and
declare that the maven sling plugin requires Java 8
or
fix this Java 8 dependency in 2.3.6 and change our parent pom to 2.3.6
But the way it is atm does not make that much sense.
> Maven-Sling-Plugin requires Java 8
> ----------------------------------
>
> Key: SLING-7644
> URL: https://issues.apache.org/jira/browse/SLING-7644
> Project: Sling
> Issue Type: Bug
> Components: Maven Plugins and Archetypes
> Affects Versions: Maven Sling Plugin 2.3.4
> Reporter: Carsten Ziegeler
> Priority: Blocker
> Fix For: Maven Sling Plugin 2.3.6
>
>
> When using the maven sling plugin 2.3.4 with Java 7, the following error
> occurs:
> [ERROR] Failed to execute goal
> org.apache.sling:maven-sling-plugin:2.3.4:generate-adapter-metadata
> (generate-adapter-metadata) on project org.apache.sling.resourceresolver:
> Execution generate-adapter-metadata of goal
> org.apache.sling:maven-sling-plugin:2.3.4:generate-adapter-metadata failed:
> An API incompatibility was encountered while executing
> org.apache.sling:maven-sling-plugin:2.3.4:generate-adapter-metadata:
> java.lang.UnsupportedClassVersionError: javax/json/JsonException :
> Unsupported major.minor version 52.0
> [ERROR] -----------------------------------------------------
> [ERROR] realm = plugin>org.apache.sling:maven-sling-plugin:2.3.4
> [ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
> [ERROR] urls[0] =
> file:/Users/cziegeler/.m2/repository/org/apache/sling/maven-sling-plugin/2.3.4/maven-sling-plugin-2.3.4.jar
> [
> Reverting to version 2.3.2 fixes the problem
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