Fix cancellation test issue (#460)

Don't cancel child one way calls anymore

Author: slinkydeveloper

sdk-common/src/main/java/dev/restate/sdk/types/TerminalException.java

@@ -19,12 +19,12 @@ public class TerminalException extends RuntimeException {
   private final int code;
 
   public TerminalException() {
-    this.code = INTERNAL_SERVER_ERROR_CODE;
+    this(INTERNAL_SERVER_ERROR_CODE);
   }
 
   /** Like {@link #TerminalException(int, String)}, without message. */
   public TerminalException(int code) {
-    this.code = code;
+    this(code, "Error " + code);
   }
 
   /**

sdk-core/src/main/java/dev/restate/sdk/core/HandlerContextImpl.java

@@ -218,11 +218,7 @@ public CompletableFuture<AsyncResult<String>> send(
           int sendHandle =
               this.stateMachine.send(target, parameter, idempotencyKey, headers, delay);
 
-          AsyncResultInternal<String> invocationIdAsyncResult =
-              AsyncResults.single(this, sendHandle, invocationIdCompleter());
-          this.invocationIdsToCancel.add(invocationIdAsyncResult);
-
-          return invocationIdAsyncResult;
+            return AsyncResults.single(this, sendHandle, invocationIdCompleter());
         });
   }
 

test-services/src/main/kotlin/dev/restate/sdk/testservices/CancelTestImpl.kt

@@ -24,7 +24,7 @@ class CancelTestImpl {
     }
 
     override suspend fun startTest(context: ObjectContext, operation: BlockingOperation) {
-      val client = CancelTestBlockingServiceClient.fromContext(context, "")
+      val client = CancelTestBlockingServiceClient.fromContext(context, context.key())
 
       try {
         client.block(operation).await()
@@ -44,8 +44,8 @@ class CancelTestImpl {
 
   class BlockingService : CancelTest.BlockingService {
     override suspend fun block(context: ObjectContext, operation: BlockingOperation) {
-      val self = CancelTestBlockingServiceClient.fromContext(context, "")
-      val client = AwakeableHolderClient.fromContext(context, "cancel")
+      val self = CancelTestBlockingServiceClient.fromContext(context, context.key())
+      val client = AwakeableHolderClient.fromContext(context, context.key())
 
       val awakeable = context.awakeable<String>()
       client.hold(awakeable.id).await()