Collapse catch clauses

Use multi-catch for exceptions whenever possible.

See gh-9781

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/OnBeanCondition.java

@@ -255,10 +255,7 @@ class OnBeanCondition extends SpringBootCondition implements ConfigurationCondit
 					ClassUtils.forName(type, classLoader), considerHierarchy);
 			return result;
 		}
-		catch (ClassNotFoundException ex) {
-			return Collections.emptySet();
-		}
-		catch (NoClassDefFoundError ex) {
+		catch (ClassNotFoundException | NoClassDefFoundError ex) {
 			return Collections.emptySet();
 		}
 	}

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/http/HttpMessageConverters.java

@@ -240,10 +240,7 @@ public class HttpMessageConverters implements Iterable<HttpMessageConverter<?>>
 		try {
 			list.add(Class.forName(className));
 		}
-		catch (ClassNotFoundException ex) {
-			// Ignore
-		}
-		catch (NoClassDefFoundError ex) {
+		catch (ClassNotFoundException | NoClassDefFoundError ex) {
 			// Ignore
 		}
 	}

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/data/mongo/MongoDataAutoConfigurationTests.java

@@ -27,7 +27,6 @@ import org.junit.Test;
 import org.junit.rules.ExpectedException;
 
 import org.springframework.beans.factory.BeanCreationException;
-import org.springframework.beans.factory.UnsatisfiedDependencyException;
 import org.springframework.boot.autoconfigure.AutoConfigurationPackages;
 import org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration;
 import org.springframework.boot.autoconfigure.data.mongo.city.City;
@@ -135,9 +134,6 @@ public class MongoDataAutoConfigurationTests {
 			fail("Create FieldNamingStrategy interface should fail");
 		}
 		// We seem to have an inconsistent exception, accept either
-		catch (UnsatisfiedDependencyException ex) {
-			// Expected
-		}
 		catch (BeanCreationException ex) {
 			// Expected
 		}