Adapt JDK version with drop Java 17 on 2.545 and April 2026 LTS release

Author: jonesbusy

plugin-modernizer-core/src/main/java/io/jenkins/tools/pluginmodernizer/core/model/JDK.java

@@ -26,10 +26,9 @@ public enum JDK {
      */
     JAVA_8(8, true, null, "2.346.1", "1900.v9e128c991ef4"),
     JAVA_11(11, true, "2.164.1", "2.462.3", "2225.v04fa_3929c9b_5"),
-    JAVA_17(17, true, "2.346.1", null, null),
+    JAVA_17(17, true, "2.346.1", "2.544", null),
     JAVA_21(21, true, "2.426.1", null, null),
-    JAVA_25(25, true, "2.479.1", null, null);
-    // TODO: Update Java 25 compatible Since (jenkins version) if required
+    JAVA_25(25, true, "2.541.1", null, null);
     /**
      * The major version
      */

plugin-modernizer-core/src/test/java/io/jenkins/tools/pluginmodernizer/core/model/JDKTest.java

@@ -158,14 +158,24 @@ public void getBuildableJdk() {
         assertEquals(JDK.JAVA_17, JDK.get("2.463").get(0));
         assertEquals(JDK.JAVA_21, JDK.get("2.463").get(1));
 
-        assertEquals(3, JDK.get("2.479.1").size());
+        assertEquals(2, JDK.get("2.479.1").size());
         assertEquals(JDK.JAVA_17, JDK.get("2.479.1").get(0));
         assertEquals(JDK.JAVA_21, JDK.get("2.479.1").get(1));
 
-        assertEquals(3, JDK.get("2.492.1").size());
+        assertEquals(2, JDK.get("2.492.1").size());
         assertEquals(JDK.JAVA_17, JDK.get("2.492.1").get(0));
         assertEquals(JDK.JAVA_21, JDK.get("2.492.1").get(1));
-        assertEquals(JDK.JAVA_25, JDK.get("2.492.1").get(2));
+
+        // Last LTS to support JDK 17
+        assertEquals(3, JDK.get("2.541.1").size());
+        assertEquals(JDK.JAVA_17, JDK.get("2.541.1").get(0));
+        assertEquals(JDK.JAVA_21, JDK.get("2.541.1").get(1));
+        assertEquals(JDK.JAVA_25, JDK.get("2.541.1").get(2));
+
+        // First LTS to drop JDK 17 (adapt when baseline is choosen)
+        assertEquals(2, JDK.get("2.550.1").size());
+        assertEquals(JDK.JAVA_21, JDK.get("2.550.1").get(0));
+        assertEquals(JDK.JAVA_25, JDK.get("2.550.1").get(1));
     }
 
     @Test