diff --git a/org.eclipse.jdt.astview/src/org/eclipse/jdt/astview/views/ASTView.java b/org.eclipse.jdt.astview/src/org/eclipse/jdt/astview/views/ASTView.java
index f690b2da1dd..5d971afcfce 100644
--- a/org.eclipse.jdt.astview/src/org/eclipse/jdt/astview/views/ASTView.java
+++ b/org.eclipse.jdt.astview/src/org/eclipse/jdt/astview/views/ASTView.java
@@ -8,6 +8,10 @@
  *
  * SPDX-License-Identifier: EPL-2.0
  *
+ * This is an implementation of an early-draft specification developed under the Java
+ * Community Process (JCP) and is made available for testing and evaluation purposes
+ * only. The code is not compatible with any specification of the JCP.
+ *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
@@ -138,6 +142,7 @@
 public class ASTView extends ViewPart implements IShowInSource, IShowInTargetList {
 
 	static final int JLS_LATEST= AST.getJLSLatest();
+	private static final int JLS24= ASTHelper.JLS24;
 	private static final int JLS23= ASTHelper.JLS23;
 	private static final int JLS22= ASTHelper.JLS22;
 	private static final int JLS21= ASTHelper.JLS21;
@@ -524,6 +529,7 @@ public ASTView() {
 				case JLS21:
 				case JLS22:
 				case JLS23:
+				case JLS24:
 					fCurrentASTLevel= level;
 			}
 		} catch (NumberFormatException e) {
@@ -1153,6 +1159,7 @@ public void run() {
 				new ASTLevelToggle("AST Level 2&1 (21)", JLS21), //$NON-NLS-1$
 				new ASTLevelToggle("AST Level 2&2 (22)", JLS22), //$NON-NLS-1$
 				new ASTLevelToggle("AST Level 2&3 (23)", JLS23), //$NON-NLS-1$
+				new ASTLevelToggle("AST Level 2&4 (24)", JLS24), //$NON-NLS-1$
 		};
 
 		fAddToTrayAction= new Action() {
diff --git a/org.eclipse.jdt.core.manipulation/common/org/eclipse/jdt/internal/ui/util/ASTHelper.java b/org.eclipse.jdt.core.manipulation/common/org/eclipse/jdt/internal/ui/util/ASTHelper.java
index f174befb3f0..f20040efbf5 100644
--- a/org.eclipse.jdt.core.manipulation/common/org/eclipse/jdt/internal/ui/util/ASTHelper.java
+++ b/org.eclipse.jdt.core.manipulation/common/org/eclipse/jdt/internal/ui/util/ASTHelper.java
@@ -8,6 +8,10 @@
  *
  * SPDX-License-Identifier: EPL-2.0
  *
+ * This is an implementation of an early-draft specification developed under the Java
+ * Community Process (JCP) and is made available for testing and evaluation purposes
+ * only. The code is not compatible with any specification of the JCP.
+ *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
@@ -39,6 +43,7 @@ public class ASTHelper {
 	public static final int JLS21 = AST.JLS21;
 	public static final int JLS22 = AST.JLS22;
 	public static final int JLS23 = AST.JLS23;
+	public static final int JLS24 = AST.JLS24;
 
 	private static boolean isNodeTypeSupportedInAST(AST ast, int nodeType) {
 		switch (nodeType) {