Add TWENTY_THREE to JavaVersion enum

This commit uses JRE#OTHER as JUnit does not have support for Java 23
yet, see https://github.com/junit-team/junit5/issues/3918

Closes gh-41710

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/system/JavaVersion.java

@@ -17,6 +17,7 @@
 package org.springframework.boot.system;
 
 import java.io.Console;
+import java.text.NumberFormat;
 import java.time.Duration;
 import java.util.Arrays;
 import java.util.Collections;
@@ -70,7 +71,13 @@ public enum JavaVersion {
 	 * Java 22.
 	 * @since 3.2.4
 	 */
-	TWENTY_TWO("22", Console.class, "isTerminal");
+	TWENTY_TWO("22", Console.class, "isTerminal"),
+
+	/**
+	 * Java 23.
+	 * @since 3.2.9
+	 */
+	TWENTY_THREE("23", NumberFormat .class, "isStrict");
 
 	private final String name;
 

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/system/JavaVersionTests.java

@@ -115,4 +115,10 @@ class JavaVersionTests {
 		assertThat(JavaVersion.getJavaVersion()).isEqualTo(JavaVersion.TWENTY_TWO);
 	}
 
+	@Test
+	@EnabledOnJre(JRE.OTHER)
+	void currentJavaVersionTwentyThree() {
+		assertThat(JavaVersion.getJavaVersion()).isEqualTo(JavaVersion.TWENTY_THREE);
+	}
+
 }