From ee77ce0f343ec5df0c1727c3c6a980b3063b06d2 Mon Sep 17 00:00:00 2001
From: slinkydeveloper <me@slinkydeveloper.com>
Date: Tue, 5 May 2026 18:27:30 +0200
Subject: [PATCH] Create the Random instance only once

---
 .../src/main/kotlin/dev/restate/sdk/kotlin/ContextImpl.kt    | 5 ++++-
 sdk-api/src/main/java/dev/restate/sdk/ContextImpl.java       | 4 +++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/sdk-api-kotlin/src/main/kotlin/dev/restate/sdk/kotlin/ContextImpl.kt b/sdk-api-kotlin/src/main/kotlin/dev/restate/sdk/kotlin/ContextImpl.kt
index 529d7bd9..e1b5a0ea 100644
--- a/sdk-api-kotlin/src/main/kotlin/dev/restate/sdk/kotlin/ContextImpl.kt
+++ b/sdk-api-kotlin/src/main/kotlin/dev/restate/sdk/kotlin/ContextImpl.kt
@@ -34,6 +34,9 @@ internal constructor(
     internal val contextSerdeFactory: SerdeFactory,
 ) : WorkflowContext {
 
+  internal val random: RestateRandom =
+      RestateRandom(handlerContext.request().invocationId().toRandomSeed())
+
   override fun key(): String {
     return this.handlerContext.objectKey()
   }
@@ -191,7 +194,7 @@ internal constructor(
   }
 
   override fun random(): RestateRandom {
-    return RestateRandom(handlerContext.request().invocationId().toRandomSeed())
+    return this.random
   }
 
   override fun <T : Any> promise(key: DurablePromiseKey<T>): DurablePromise<T> {
diff --git a/sdk-api/src/main/java/dev/restate/sdk/ContextImpl.java b/sdk-api/src/main/java/dev/restate/sdk/ContextImpl.java
index 408795fa..266f5048 100644
--- a/sdk-api/src/main/java/dev/restate/sdk/ContextImpl.java
+++ b/sdk-api/src/main/java/dev/restate/sdk/ContextImpl.java
@@ -36,11 +36,13 @@ class ContextImpl implements ObjectContext, WorkflowContext {
   private final HandlerContext handlerContext;
   private final Executor serviceExecutor;
   private final SerdeFactory serdeFactory;
+  private final RestateRandom random;
 
   ContextImpl(HandlerContext handlerContext, Executor serviceExecutor, SerdeFactory serdeFactory) {
     this.handlerContext = handlerContext;
     this.serviceExecutor = serviceExecutor;
     this.serdeFactory = serdeFactory;
+    this.random = new RestateRandom(this.request().invocationId().toRandomSeed());
   }
 
   static void checkNotInsideRun() {
@@ -275,7 +277,7 @@ public void reject(String reason) {
 
   @Override
   public RestateRandom random() {
-    return new RestateRandom(this.request().invocationId().toRandomSeed());
+    return this.random;
   }
 
   @Override