GH-2956 Fix assertion for multiple binders

Resolves #2956
spring-cloud · Jun 4, 2024 · d6550ed · d6550ed
1 parent 7c20624
commit d6550ed
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/...m/src/main/java/org/springframework/cloud/stream/binder/AbstractMessageChannelBinder.java b/...m/src/main/java/org/springframework/cloud/stream/binder/AbstractMessageChannelBinder.java
@@ -267,8 +267,8 @@ private String resolveFromDefaultBinder() {
  if (binderTypes.entrySet().size() > 1 && getBindingServiceProperties().getDefaultBinder() != null) {
  return getBindingServiceProperties().getDefaultBinder();
  }
- Assert.isTrue(binderTypes.entrySet().size() == 1, "More than one binder types found, but no binder specified on the binding");
- return binderTypes.keySet().iterator().next();
+ Assert.isTrue(binderTypes.entrySet().size() <= 1, "More than one binder types found, but no binder specified on the binding");
+ return (binderTypes.entrySet().size() < 1) ? null : binderTypes.keySet().iterator().next();
  }
 
  /**