From b1932942cfc4b88389600d102c03d8b1c78a8c81 Mon Sep 17 00:00:00 2001
From: Gary Russell <grussell@pivotal.io>
Date: Fri, 30 Oct 2020 15:57:36 -0400
Subject: [PATCH] GH-3418: Fix Poller Undeclared Checked Exceptions

Resolves https://github.com/spring-projects/spring-integration/issues/3418

`Class.newInstance()` can propagate checked exceptions that are not declared.

**cherry-pick/back-port to 5.3.x, 5.2.x, 4.3.x**

# Conflicts:
#	spring-integration-core/src/main/java/org/springframework/integration/endpoint/AbstractPollingEndpoint.java
---
 .../integration/endpoint/AbstractPollingEndpoint.java          | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/spring-integration-core/src/main/java/org/springframework/integration/endpoint/AbstractPollingEndpoint.java b/spring-integration-core/src/main/java/org/springframework/integration/endpoint/AbstractPollingEndpoint.java
index d4b3cdfe46..d2d5b00fe3 100644
--- a/spring-integration-core/src/main/java/org/springframework/integration/endpoint/AbstractPollingEndpoint.java
+++ b/spring-integration-core/src/main/java/org/springframework/integration/endpoint/AbstractPollingEndpoint.java
@@ -48,6 +48,7 @@ import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
 import org.springframework.util.CollectionUtils;
 import org.springframework.util.ErrorHandler;
+import org.springframework.util.ReflectionUtils;
 
 /**
  * @author Mark Fisher
@@ -252,7 +253,7 @@ public abstract class AbstractPollingEndpoint extends AbstractEndpoint implement
 				return false;
 			}
 			else {
-				throw (RuntimeException) e;
+				ReflectionUtils.rethrowRuntimeException(e);
 			}
 		}
 		boolean result;