Use declaring enum class for Jackson names

jackson/src/main/java/org/projectnessie/cel/types/jackson/JacksonEnumValue.java

@@ -30,7 +30,7 @@ final class JacksonEnumValue {
   }
 
   static String fullyQualifiedName(Enum<?> value) {
-    return value.getClass().getName().replace('$', '.') + '.' + value.name();
+    return value.getDeclaringClass().getName().replace('$', '.') + '.' + value.name();
   }
 
   String fullyQualifiedName() {

jackson/src/test/java/org/projectnessie/cel/types/jackson/Jackson2TypeDescriptionTest.java

@@ -52,6 +52,7 @@
 import org.projectnessie.cel.common.types.ref.Val;
 import org.projectnessie.cel.types.jackson.types.AnEnum;
 import org.projectnessie.cel.types.jackson.types.CollectionsObject;
+import org.projectnessie.cel.types.jackson.types.EnumWithConstantBody;
 import org.projectnessie.cel.types.jackson.types.InnerType;
 
 class Jackson2TypeDescriptionTest {
@@ -117,6 +118,17 @@ void basics() {
         .isInstanceOf(IllegalArgumentException.class);
   }
 
+  @Test
+  void enumConstantSpecificClassBodyUsesDeclaringClassName() {
+    JacksonRegistry reg = (JacksonRegistry) newRegistry();
+    reg.enumDescription(EnumWithConstantBody.class);
+
+    assertThat(reg.findIdent(EnumWithConstantBody.class.getName() + ".SPECIAL"))
+        .isEqualTo(intOf(EnumWithConstantBody.SPECIAL.ordinal()));
+    assertThat(reg.nativeToValue(EnumWithConstantBody.SPECIAL))
+        .isEqualTo(intOf(EnumWithConstantBody.SPECIAL.ordinal()));
+  }
+
   @Test
   void types() {
     JacksonRegistry reg = (JacksonRegistry) newRegistry();

jackson/src/test/java/org/projectnessie/cel/types/jackson/types/EnumWithConstantBody.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2026 The Authors of CEL-Java
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.projectnessie.cel.types.jackson.types;
+
+public enum EnumWithConstantBody {
+  DEFAULT,
+  SPECIAL {
+    @Override
+    public String label() {
+      return "special";
+    }
+  };
+
+  public String label() {
+    return name();
+  }
+}

jackson3/src/main/java/org/projectnessie/cel/types/jackson3/JacksonEnumValue.java

@@ -30,7 +30,7 @@ final class JacksonEnumValue {
   }
 
   static String fullyQualifiedName(Enum<?> value) {
-    return value.getClass().getName().replace('$', '.') + '.' + value.name();
+    return value.getDeclaringClass().getName().replace('$', '.') + '.' + value.name();
   }
 
   String fullyQualifiedName() {

jackson3/src/test/java/org/projectnessie/cel/types/jackson3/Jackson3TypeDescriptionTest.java

@@ -51,6 +51,7 @@
 import org.projectnessie.cel.common.types.ref.Val;
 import org.projectnessie.cel.types.jackson3.types.AnEnum;
 import org.projectnessie.cel.types.jackson3.types.CollectionsObject;
+import org.projectnessie.cel.types.jackson3.types.EnumWithConstantBody;
 import org.projectnessie.cel.types.jackson3.types.InnerType;
 import tools.jackson.databind.JavaType;
 
@@ -117,6 +118,17 @@ void basics() {
         .isInstanceOf(IllegalArgumentException.class);
   }
 
+  @Test
+  void enumConstantSpecificClassBodyUsesDeclaringClassName() {
+    Jackson3Registry reg = (Jackson3Registry) newRegistry();
+    reg.enumDescription(EnumWithConstantBody.class);
+
+    assertThat(reg.findIdent(EnumWithConstantBody.class.getName() + ".SPECIAL"))
+        .isEqualTo(intOf(EnumWithConstantBody.SPECIAL.ordinal()));
+    assertThat(reg.nativeToValue(EnumWithConstantBody.SPECIAL))
+        .isEqualTo(intOf(EnumWithConstantBody.SPECIAL.ordinal()));
+  }
+
   @Test
   void types() {
     Jackson3Registry reg = (Jackson3Registry) newRegistry();

jackson3/src/test/java/org/projectnessie/cel/types/jackson3/types/EnumWithConstantBody.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2026 The Authors of CEL-Java
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.projectnessie.cel.types.jackson3.types;
+
+public enum EnumWithConstantBody {
+  DEFAULT,
+  SPECIAL {
+    @Override
+    public String label() {
+      return "special";
+    }
+  };
+
+  public String label() {
+    return name();
+  }
+}