Java 21 support update (#2229)

* Java 21 support update

* Fixed typo

Author: tkyc

README.md

@@ -44,15 +44,15 @@ To build the jar files, you must use minimum version of Java 11 with Maven. You
 * Maven:
 	1. If you have not already done so, add the environment variable `mssql_jdbc_test_connection_properties` in your system with the connection properties for your SQL Server or SQL DB instance.
 	2. Run one of the commands below to build a JRE 11 and newer versions compatible jar or JRE 8 compatible jar in the `\target` directory. 
-        * Run `mvn install -Pjre20`. This creates JRE 20 compatible jar in `\target` directory which is JDBC 4.3 compliant (Build with JDK 20).
+        * Run `mvn install -Pjre21`. This creates JRE 21 compatible jar in `\target` directory which is JDBC 4.3 compliant (Build with JDK 21).
         * Run `mvn install -Pjre17`. This creates JRE 17 compatible jar in `\target` directory which is JDBC 4.3 compliant (Build with JDK 17+).
         * Run `mvn install -Pjre11`. This creates JRE 11 compatible jar in `\target` directory which is JDBC 4.3 compliant (Build with JDK 11+).
         * Run `mvn install -Pjre8`. This creates JRE 8 compatible jar in `\target` directory which is JDBC 4.2 compliant (Build with JDK 11+).
 
 * Gradle:
 	1. If you have not already done so, add the environment variable `mssql_jdbc_test_connection_properties` in your system with the connection properties for your SQL Server or SQL DB instance.
 	2. Run one of the commands below to build a JRE 11 and newer versions compatible jar or JRE 8 compatible jar in the `\build\libs` directory. 
-        * Run `gradle build -PbuildProfile=jre20`. This creates JRE 20 compatible jar in `\build\libs` directory which is JDBC 4.3 compliant (Build with JDK 20).
+        * Run `gradle build -PbuildProfile=jre21`. This creates JRE 21 compatible jar in `\build\libs` directory which is JDBC 4.3 compliant (Build with JDK 21).
         * Run `gradle build -PbuildProfile=jre17`. This creates JRE 17 compatible jar in `\build\libs` directory which is JDBC 4.3 compliant (Build with JDK 17+).
         * Run `gradle build -PbuildProfile=jre11`. This creates JRE 11 compatible jar in `\build\libs` directory which is JDBC 4.3 compliant (Build with JDK 11+).
         * Run `gradle build -PbuildProfile=jre8`. This creates JRE 8 compatible jar in `\build\libs` directory which is JDBC 4.2 compliant (Build with JDK 11+).

build.gradle

@@ -33,17 +33,17 @@ test {
     }
 }
 
-if (!hasProperty('buildProfile') || (hasProperty('buildProfile') && buildProfile == "jre20")) {
+if (!hasProperty('buildProfile') || (hasProperty('buildProfile') && buildProfile == "jre21")) {
 
-	jreVersion = "jre20"
+	jreVersion = "jre21"
 	excludedFile = 'com/microsoft/sqlserver/jdbc/SQLServerJdbc42.java'
 	jar {
 		manifest {
 			attributes 'Automatic-Module-Name': 'com.microsoft.sqlserver.jdbc'
 		}
 	}
-	sourceCompatibility = 20
-	targetCompatibility = 20
+	sourceCompatibility = 21
+	targetCompatibility = 21
 }
 
 if (hasProperty('buildProfile') && buildProfile == "jre17") {

pom.xml

@@ -345,12 +345,12 @@
 			</build>
 		</profile>
 		<profile>
-			<id>jre20</id>
+			<id>jre21</id>
 			<activation>
 				<activeByDefault>true</activeByDefault>
 			</activation>
 			<build>
-				<finalName>${project.artifactId}-${project.version}.jre20${releaseExt}</finalName>
+				<finalName>${project.artifactId}-${project.version}.jre21${releaseExt}</finalName>
 				<plugins>
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>
@@ -360,8 +360,8 @@
 							<excludes>
 								<exclude>**/com/microsoft/sqlserver/jdbc/SQLServerJdbc42.java</exclude>
 							</excludes>
-							<source>20</source>
-							<target>20</target>
+							<source>21</source>
+							<target>21</target>
 						</configuration>
 					</plugin>
 					<plugin>