diff --git a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/ContainerApps.json b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/ContainerApps.json
index c400c416f1b0..747098a86d7e 100644
--- a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/ContainerApps.json
+++ b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/ContainerApps.json
@@ -649,6 +649,10 @@
           "$ref": "#/definitions/Dapr",
           "description": "Dapr configuration for the Container App."
         },
+        "runtime": {
+          "$ref": "#/definitions/Runtime",
+          "description": "App runtime configuration for the Container App."
+        },
         "maxInactiveRevisions": {
           "format": "int32",
           "description": "Optional. Max inactive revisions a Container App can have.",
@@ -891,6 +895,22 @@
         }
       }
     },
+    "Runtime": {
+      "description": "Container App Runtime configuration.",
+      "type": "object",
+      "properties": {
+        "java": {
+          "description": "Java app configuration",
+          "type": "object",
+          "properties": {
+            "enableMetrics": {
+              "description": "Enable jmx core metrics for the java app",
+              "type": "boolean"
+            }
+          }
+        }
+      }
+    },
     "Ingress": {
       "description": "Container App Ingress configuration.",
       "type": "object",
diff --git a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_CreateOrUpdate.json b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_CreateOrUpdate.json
index 71684dbff941..9b231c3c0a40 100644
--- a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_CreateOrUpdate.json
+++ b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_CreateOrUpdate.json
@@ -94,6 +94,11 @@
           "maxInactiveRevisions": 10,
           "service": {
             "type": "redis"
+          },
+          "runtime": {
+            "java": {
+              "enableMetrics": true
+            }
           }
         },
         "template": {
@@ -276,6 +281,11 @@
               "appPort": 3000,
               "appProtocol": "http",
               "httpReadBufferSize": 30
+            },
+            "runtime": {
+              "java": {
+                "enableMetrics": true
+              }
             }
           },
           "template": {
@@ -424,6 +434,11 @@
               "appPort": 3000,
               "appProtocol": "http",
               "httpReadBufferSize": 30
+            },
+            "runtime": {
+              "java": {
+                "enableMetrics": true
+              }
             }
           },
           "template": {
diff --git a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Get.json b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Get.json
index 001b6781ff2f..3d897f3187d3 100644
--- a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Get.json
+++ b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Get.json
@@ -76,6 +76,11 @@
               "logLevel": "debug",
               "enableApiLogging": true
             },
+            "runtime": {
+              "java": {
+                "enableMetrics": true
+              }
+            },
             "maxInactiveRevisions": 10,
             "service": {
               "type": "redis"
diff --git a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_ListByResourceGroup.json b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_ListByResourceGroup.json
index e5512791d8ba..b77a2b5e0a3a 100644
--- a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_ListByResourceGroup.json
+++ b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_ListByResourceGroup.json
@@ -77,6 +77,11 @@
                   "logLevel": "debug",
                   "enableApiLogging": true
                 },
+                "runtime": {
+                  "java": {
+                    "enableMetrics": true
+                  }
+                },
                 "maxInactiveRevisions": 10
               },
               "template": {
diff --git a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_ListBySubscription.json b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_ListBySubscription.json
index cec7b429b7a1..5b49885c9ec3 100644
--- a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_ListBySubscription.json
+++ b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_ListBySubscription.json
@@ -76,6 +76,11 @@
                   "logLevel": "debug",
                   "enableApiLogging": true
                 },
+                "runtime": {
+                  "java": {
+                    "enableMetrics": true
+                  }
+                },
                 "maxInactiveRevisions": 10,
                 "service": {
                   "type": "redis"
diff --git a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Patch.json b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Patch.json
index 41586eda8134..998bce57f931 100644
--- a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Patch.json
+++ b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Patch.json
@@ -61,6 +61,11 @@
             "logLevel": "debug",
             "enableApiLogging": true
           },
+          "runtime": {
+            "java": {
+              "enableMetrics": true
+            }
+          },
           "maxInactiveRevisions": 10,
           "service": {
             "type": "redis"
@@ -195,6 +200,11 @@
               "logLevel": "debug",
               "enableApiLogging": true
             },
+            "runtime": {
+              "java": {
+                "enableMetrics": true
+              }
+            },
             "maxInactiveRevisions": 10
           },
           "template": {
diff --git a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Start.json b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Start.json
index bdadce432bd4..41b1fe87a9f6 100644
--- a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Start.json
+++ b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Start.json
@@ -73,6 +73,11 @@
               "logLevel": "debug",
               "enableApiLogging": true
             },
+            "runtime": {
+              "java": {
+                "enableMetrics": true
+              }
+            },
             "maxInactiveRevisions": 10
           },
           "template": {
diff --git a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Stop.json b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Stop.json
index 59b2a1ab4373..aab14e698e46 100644
--- a/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Stop.json
+++ b/specification/app/resource-manager/Microsoft.App/stable/2025-01-01/examples/ContainerApps_Stop.json
@@ -73,6 +73,11 @@
               "logLevel": "debug",
               "enableApiLogging": true
             },
+            "runtime": {
+              "java": {
+                "enableMetrics": true
+              }
+            },
             "maxInactiveRevisions": 10
           },
           "template": {