chore: add jdk 24 to test matrixes (GoogleCloudPlatform#3796)

* chore: add jdk 24 to test matrixes

this is in order to support graalvm upgrade

* need to update source to use release: enables cross-compilation cleanly by instructing the compiler to use Java 17’s standard module definitions, solving the missing "system modules" problem.

* disable

* disable

* disable

* disable

* disable

* disable

* disable

Author: ldetmer

.github/workflows/unitTests.yaml

@@ -21,7 +21,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        java: [17, 19, 21]
+        java: [17, 19, 21, 24]
     steps:
     - name: Get current date
       id: date

pom.xml

@@ -56,7 +56,7 @@
 		<checkstyle-rules.version>9.3</checkstyle-rules.version>
 		<asciidoctor-maven-plugin.version>2.0.0</asciidoctor-maven-plugin.version>
 		<native-maven-plugin.version>0.10.5</native-maven-plugin.version>
-		<errorprone.version>2.34.0</errorprone.version>
+		<errorprone.version>2.38.0</errorprone.version>
 
 		<!-- All checks except for javadoc enforced by default -->
 		<skip.failsafe.tests>${skipTests}</skip.failsafe.tests>
@@ -659,11 +659,11 @@
 							<artifactId>maven-compiler-plugin</artifactId>
 							<version>${maven-compiler-plugin.version}</version>
 							<configuration>
-								<source>${maven.compiler.source}</source>
-								<target>${maven.compiler.target}</target>
+								<release>${maven.compiler.source}</release>
 								<encoding>UTF-8</encoding>
 								<fork>true</fork>
 								<compilerArgs>
+									<arg>--should-stop=ifError=FLOW</arg>
 									<arg>-XDcompilePolicy=simple</arg>
 									<arg>-Xplugin:ErrorProne -Xep:UnicodeInCode:OFF</arg>
 									<!-- See: https://github.com/GoogleCloudPlatform/spring-cloud-gcp/pull/92 -->