Make throwable in CircuitBreaker be Nullable

ryanjbaxter · ryanjbaxter · commit 74ae11a6c10b · 2025-11-20T20:51:23.000-05:00
diff --git a/spring-cloud-commons/src/main/java/org/springframework/cloud/client/circuitbreaker/CircuitBreaker.java b/spring-cloud-commons/src/main/java/org/springframework/cloud/client/circuitbreaker/CircuitBreaker.java
@@ -19,6 +19,8 @@
 import java.util.function.Function;
 import java.util.function.Supplier;
 
+import org.jspecify.annotations.Nullable;
+
 /**
  * Spring Cloud circuit breaker.
  *
@@ -32,6 +34,6 @@ default <T> T run(Supplier<T> toRun) {
 		});
 	}
 
-	<T> T run(Supplier<T> toRun, Function<Throwable, T> fallback);
+	<T> T run(Supplier<T> toRun, Function<@Nullable Throwable, T> fallback);
 
 }

Original file line number	Diff line number	Diff line change
`@@ -19,6 +19,8 @@`
`19`	`19`	`import java.util.function.Function;`
`20`	`20`	`import java.util.function.Supplier;`
`21`	`21`
	`22`	`+import org.jspecify.annotations.Nullable;`
	`23`	`+`
`22`	`24`	`/**`
`23`	`25`	`* Spring Cloud circuit breaker.`
`24`	`26`	`*`
`@@ -32,6 +34,6 @@ default <T> T run(Supplier<T> toRun) {`
`32`	`34`	`});`
`33`	`35`	`}`
`34`	`36`
`35`		`- <T> T run(Supplier<T> toRun, Function<Throwable, T> fallback);`
	`37`	`+ <T> T run(Supplier<T> toRun, Function<@Nullable Throwable, T> fallback);`
`36`	`38`
`37`	`39`	`}`