Downgrade requirement to Java 21

Author: vietj

pom.xml

@@ -73,9 +73,9 @@
   <profiles>
 
     <profile>
-      <id>Java25</id>
+      <id>Java21</id>
       <activation>
-        <jdk>[25,)</jdk>
+        <jdk>[21,)</jdk>
       </activation>
       <modules>
         <module>vertx-core-logging</module>
@@ -86,7 +86,7 @@
 
     <!--
       This profile can be activated when a toolchain is required, the main use case is building
-      with Java 25 features with any JDK.
+      with Java 21 features with any JDK.
     -->
     <profile>
       <id>toolchains</id>
@@ -109,7 +109,7 @@
                   <version>11</version>
                 </jdk>
                 <jdk>
-                  <version>25</version>
+                  <version>21</version>
                 </jdk>
               </toolchains>
             </configuration>

vertx-core-jackson-v3/pom.xml

@@ -26,7 +26,7 @@
   <name>Vert.x Core Jackson v3 plugin</name>
 
   <properties>
-    <maven.compiler.release>25</maven.compiler.release>
+    <maven.compiler.release>21</maven.compiler.release>
     <maven.install.skip>true</maven.install.skip>
   </properties>
 

vertx-core/pom.xml

@@ -775,9 +775,9 @@
   <profiles>
 
     <profile>
-      <id>Java25</id>
+      <id>Java21</id>
       <activation>
-        <jdk>[25,)</jdk>
+        <jdk>[21,)</jdk>
       </activation>
       <build>
         <pluginManagement>
@@ -786,14 +786,14 @@
               <artifactId>maven-compiler-plugin</artifactId>
               <executions>
                 <execution>
-                  <id>Java25</id>
+                  <id>Java21</id>
                   <goals>
                     <goal>compile</goal>
                   </goals>
                   <configuration>
-                    <release>25</release>
+                    <release>21</release>
                     <compileSourceRoots>
-                      <compileSourceRoot>${project.basedir}/src/main/java25</compileSourceRoot>
+                      <compileSourceRoot>${project.basedir}/src/main/java21</compileSourceRoot>
                     </compileSourceRoots>
                     <multiReleaseOutput>true</multiReleaseOutput>
                   </configuration>
@@ -819,8 +819,8 @@
                   <addExports>false</addExports>
                   <detectUses>false</detectUses>
                   <detectProvides>false</detectProvides>
-                  <moduleInfoYml>${project.basedir}/src/main/java25/module-info.yml</moduleInfoYml>
-                  <outputDirectory>${project.build.outputDirectory}/META-INF/versions/25</outputDirectory>
+                  <moduleInfoYml>src/main/java21/module-info.yml</moduleInfoYml>
+                  <outputDirectory>${project.build.outputDirectory}/META-INF/versions/21</outputDirectory>
                 </configuration>
               </execution>
             </executions>