diff --git a/jOOQ-codegen/src/main/java/org/jooq/codegen/JavaGenerator.java b/jOOQ-codegen/src/main/java/org/jooq/codegen/JavaGenerator.java
index f29c5092a8..6d22cfafe7 100644
--- a/jOOQ-codegen/src/main/java/org/jooq/codegen/JavaGenerator.java
+++ b/jOOQ-codegen/src/main/java/org/jooq/codegen/JavaGenerator.java
@@ -10222,6 +10222,8 @@ public class JavaGenerator extends AbstractGenerator {
         if (scala) {}
         else if (kotlin)
             out.println("@Suppress(\"UNCHECKED_CAST\")");
+        else if (Internal.javaVersion() >= 21)
+            out.println("@%s({ \"all\", \"unchecked\", \"rawtypes\", \"this-escape\" })", out.ref("java.lang.SuppressWarnings"));
         else
             out.println("@%s({ \"all\", \"unchecked\", \"rawtypes\" })", out.ref("java.lang.SuppressWarnings"));
 
diff --git a/jOOQ/src/main/java/org/jooq/impl/Internal.java b/jOOQ/src/main/java/org/jooq/impl/Internal.java
index d8d076df31..6129e4dc4f 100644
--- a/jOOQ/src/main/java/org/jooq/impl/Internal.java
+++ b/jOOQ/src/main/java/org/jooq/impl/Internal.java
@@ -107,6 +107,8 @@ import org.jooq.exception.DataAccessException;
 import org.jooq.exception.DataTypeException;
 import org.jooq.impl.QOM.CreateTable;
 import org.jooq.impl.QOM.GenerationLocation;
+import org.jooq.tools.reflect.Reflect;
+import org.jooq.tools.reflect.ReflectException;
 // ...
 // ...
 
@@ -997,4 +999,36 @@ public final class Internal {
     public static final ConverterContext converterContext() {
         return CONVERTER_SCOPE.get();
     }
+
+    private static final Lazy<Integer> JAVA_VERSION = Lazy.of(() -> {
+        try {
+
+            return Reflect.onClass(Runtime.class)
+
+                // Since Java 9
+                .call("version")
+
+                // Since Java 10
+                .call("feature")
+                .get();
+        }
+        catch (ReflectException e) {
+            return 8;
+        }
+    });
+
+    /**
+     * Get the Java version (relevant to jOOQ) as an int.
+     * <p>
+     * Supported versions are:
+     * <ul>
+     * <li>8</li>
+     * <li>11</li>
+     * <li>17</li>
+     * <li>21</li>
+     * </ul>
+     */
+    public static final int javaVersion() {
+        return JAVA_VERSION.get();
+    }
 }