Support leading application with Java 21

Author: deepikaSingh2711

cap-notebook/demoapp/mta.yaml

@@ -17,7 +17,7 @@ modules:
     properties:
         SPRING_PROFILES_ACTIVE: cloud,sandbox
         JBP_CONFIG_COMPONENTS: "jres: ['com.sap.xs.java.buildpack.jre.SAPMachineJRE']"
-        JBP_CONFIG_SAP_MACHINE_JRE: '{ version: 17.+ }'
+        JBP_CONFIG_SAP_MACHINE_JRE: '{ version: 21.+ }'
         REPOSITORY_ID: __REPOSITORY_ID__  # Placeholder for REPOSITORY_ID
         INCOMING_REQUEST_TIMEOUT: 3600000
         INCOMING_SESSION_TIMEOUT: 3600000

cap-notebook/demoapp/pom.xml

@@ -16,7 +16,7 @@
 		<revision>1.0.0-SNAPSHOT</revision>
 
 		<!-- DEPENDENCIES VERSION -->
-		<jdk.version>17</jdk.version>
+		<jdk.version>21</jdk.version>
 		<cds.services.version>4.1.1</cds.services.version>
 		<spring.boot.version>3.3.1</spring.boot.version>
 		<cds.install-cdsdk.version>8.0.2</cds.install-cdsdk.version>

pom.xml

@@ -17,7 +17,7 @@
 
     <properties>
         <revision>1.0.0-SNAPSHOT</revision>
-        <java.version>17</java.version>
+        <java.version>21</java.version>
         <maven.compiler.source>${java.version}</maven.compiler.source>
         <maven.compiler.target>${java.version}</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

sdm/pom.xml

@@ -32,8 +32,8 @@
         <cds.install-cdsdk.version>7.6.0</cds.install-cdsdk.version>
         <generation-package>com.sap.cds.sdm.generated</generation-package>
         <test-generation-folder>src/test/gen</test-generation-folder>
-        <maven.compiler.source>17</maven.compiler.source>
-        <maven.compiler.target>17</maven.compiler.target>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
         <attachments_version>1.0.2</attachments_version>
         <lombok.version>1.18.30</lombok.version>
         <jacoco.version>0.8.7</jacoco.version>