From 30e35b2b11348e715461c82edde1d7044f6789d9 Mon Sep 17 00:00:00 2001
From: "David M. Lloyd" <david.lloyd@redhat.com>
Date: Fri, 17 Jul 2020 07:41:23 -0500
Subject: [PATCH] Add support for Java 14

---
 README.adoc |  2 ++
 pom.xml     | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 100 insertions(+)

diff --git a/README.adoc b/README.adoc
index 0b9022a..7ff2893 100644
--- a/README.adoc
+++ b/README.adoc
@@ -51,6 +51,7 @@ property or properties are set as needed:
 * `java10.home`: this property must be set to the location of a Java 10 JDK installation
 * `java11.home`: this property must be set to the location of a Java 11 JDK installation
 * `java12.home`: this property must be set to the location of a Java 12 JDK installation
+* `java13.home`: this property must be set to the location of a Java 13 JDK installation
 
 In order to simplify development, it is recommended to project maintainers to set these
 properties in your personal Maven `settings.xml` file.
@@ -201,5 +202,6 @@ Note that this configuration causes the default `JAVA_HOME` environment to be se
 |build-test-java10|Run tests for Java 10 when `java10.home` is set and JDK 11 or later is used.|<<mr-jar-testing>>
 |build-test-java11|Run tests for Java 11 when `java11.home` is set and JDK 12 or later is used.|<<mr-jar-testing>>
 |build-test-java12|Run tests for Java 12 when `java12.home` is set and JDK 13 or later is used.|<<mr-jar-testing>>
+|build-test-java13|Run tests for Java 13 when `java13.home` is set and JDK 14 or later is used.|<<mr-jar-testing>>
 |===
 
diff --git a/pom.xml b/pom.xml
index 1bbe294..fc91c96 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1047,6 +1047,104 @@
         </build>
     </profile>
 
+
+    <!-- This profile is activated when Java 14 or later is used to test a project that supports Java 13 -->
+    <profile>
+        <id>java13-test</id>
+        <activation>
+            <jdk>[14,)</jdk>
+            <property>
+                <name>java13.home</name>
+            </property>
+            <file>
+                <exists>${basedir}/build-test-java13</exists>
+            </file>
+        </activation>
+        <build>
+            <plugins>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-surefire-plugin</artifactId>
+                    <executions>
+                        <execution>
+                            <id>java13-test</id>
+                            <phase>test</phase>
+                            <goals>
+                                <goal>test</goal>
+                            </goals>
+                            <configuration>
+                                <jvm>${java13.home}/bin/java</jvm>
+                                <classesDirectory>${project.build.directory}/classes/META-INF/versions/13
+                                </classesDirectory>
+                                <additionalClasspathElements>
+                                    <additionalClasspathElement>
+                                        ${project.build.directory}/classes/META-INF/versions/12
+                                    </additionalClasspathElement>
+                                    <additionalClasspathElement>
+                                        ${project.build.directory}/classes/META-INF/versions/11
+                                    </additionalClasspathElement>
+                                    <additionalClasspathElement>
+                                        ${project.build.directory}/classes/META-INF/versions/10
+                                    </additionalClasspathElement>
+                                    <additionalClasspathElement>
+                                        ${project.build.directory}/classes/META-INF/versions/9
+                                    </additionalClasspathElement>
+                                    <additionalClasspathElement>${project.build.outputDirectory}
+                                    </additionalClasspathElement>
+                                </additionalClasspathElements>
+                            </configuration>
+                        </execution>
+                    </executions>
+                </plugin>
+            </plugins>
+        </build>
+    </profile>
+
+    <!-- This profile is activated when Java 14 or later is used to build -->
+    <profile>
+        <id>java14-mr-build</id>
+        <activation>
+            <jdk>[14,)</jdk>
+            <file>
+                <exists>${basedir}/src/main/java14</exists>
+            </file>
+        </activation>
+        <build>
+            <plugins>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-compiler-plugin</artifactId>
+                    <executions>
+                        <execution>
+                            <id>compile-java14</id>
+                            <phase>compile</phase>
+                            <goals>
+                                <goal>compile</goal>
+                            </goals>
+                            <configuration>
+                                <release>14</release>
+                              <compileSourceRoots>
+                                <compileSourceRoot>${project.basedir}/src/main/java14</compileSourceRoot>
+                              </compileSourceRoots>
+                              <multiReleaseOutput>true</multiReleaseOutput>
+                            </configuration>
+                        </execution>
+                    </executions>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-jar-plugin</artifactId>
+                    <configuration>
+                        <archive>
+                            <manifestEntries>
+                                <Multi-Release>true</Multi-Release>
+                            </manifestEntries>
+                        </archive>
+                    </configuration>
+                </plugin>
+            </plugins>
+        </build>
+    </profile>
+
     <!-- MR JAR support ends here-->
 
   </profiles>