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https://issues.apache.org/jira/browse/MNG-7566?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17617821#comment-17617821
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ASF GitHub Bot commented on MNG-7566:
-------------------------------------
kwin commented on code in PR #827:
URL: https://github.com/apache/maven/pull/827#discussion_r995916781
##########
maven-core/src/main/java/org/apache/maven/plugin/MavenPluginPrerequisiteChecker.java:
##########
@@ -0,0 +1,38 @@
+package org.apache.maven.plugin;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import java.util.function.Consumer;
+
+import org.apache.maven.plugin.descriptor.PluginDescriptor;
+
+/**
+ * Service responsible for checking if plugin's prerequisites are met.
+ */
+@FunctionalInterface
+public interface MavenPluginPrerequisiteChecker extends
Consumer<PluginDescriptor>
+{
Review Comment:
Why? This is the interface declaration not a method declaration.
> If you do not specify that the interface is public, then your interface is
accessible only to classes defined in the same package as the interface.
(https://docs.oracle.com/javase/tutorial/java/IandI/interfaceDef.html)
> Allow a Maven plugin to require a Java version through its plugin descriptor
> ----------------------------------------------------------------------------
>
> Key: MNG-7566
> URL: https://issues.apache.org/jira/browse/MNG-7566
> Project: Maven
> Issue Type: Improvement
> Reporter: Konrad Windszus
> Assignee: Konrad Windszus
> Priority: Major
>
> Currently a Maven plugin can only require a minimum Maven version via pom's
> prerequisites (https://maven.apache.org/pom.html#Prerequisites). There is
> currently no means to require a minimum Java version.
> I would suggest to slightly expand the plugin descriptor to include a
> minimumJavaVersion element there as well and evaluate that before executing a
> plugin goal and emit a good error message. The default Java version could be
> determined by the target class file version.
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