comment (+2 squashed commits)

Squashed commits:
[b917cc4] comment
[82e4d1d] revert (+3 squashed commits)
Squashed commits:
[cc15111] update
[529f6ce] update
[ad1631f] style (+1 squashed commit)
Squashed commits:
[bf831c5] pin compiler release version to 8

pom.xml

@@ -113,10 +113,11 @@
     </distributionManagement>
 
     <properties>
-        <java.version>1.8</java.version>
+        <java.version>8</java.version>
         <maven.version>3.9.9</maven.version>
-        <maven.compiler.source>${java.version}</maven.compiler.source>
-        <maven.compiler.target>${java.version}</maven.compiler.target>
+        <!-- Pinning compiler target to Java 8-->
+        <maven.compiler.target>8</maven.compiler.target>
+        <minimalJavaBuildVersion>${java.version}</minimalJavaBuildVersion>
         <scala.version>2.12.19</scala.version>
         <scala.binary.version>2.12</scala.binary.version>
         <scala-collection-compat.version>2.12.0</scala-collection-compat.version>
@@ -1912,10 +1913,6 @@
             </activation>
             <properties>
                 <java.version>11</java.version>
-                <maven.compiler.source></maven.compiler.source>
-                <maven.compiler.target></maven.compiler.target>
-                <maven.compiler.release>${java.version}</maven.compiler.release>
-                <minimalJavaBuildVersion>${java.version}</minimalJavaBuildVersion>
             </properties>
         </profile>
 
@@ -1926,10 +1923,6 @@
             </activation>
             <properties>
                 <java.version>17</java.version>
-                <maven.compiler.source></maven.compiler.source>
-                <maven.compiler.target></maven.compiler.target>
-                <maven.compiler.release>${java.version}</maven.compiler.release>
-                <minimalJavaBuildVersion>${java.version}</minimalJavaBuildVersion>
             </properties>
         </profile>
 
@@ -1940,9 +1933,6 @@
             </activation>
             <properties>
                 <java.version>21</java.version>
-                <maven.compiler.source></maven.compiler.source>
-                <maven.compiler.target></maven.compiler.target>
-                <maven.compiler.release>${java.version}</maven.compiler.release>
                 <!-- TODO: The current version of spotless(2.30.0) and google-java-format(1.7)
                            does not support Java 21, but new version produces different outputs.
                            Re-evaluate once we dropped support for Java 8. -->