ijuma commented on code in PR #12230:
URL: https://github.com/apache/kafka/pull/12230#discussion_r900163290


##########
clients/src/main/java/org/apache/kafka/common/utils/Utils.java:
##########
@@ -463,8 +463,7 @@ public static <T> T newParameterizedInstance(String 
className, Object... params)
             throw new ClassNotFoundException(String.format("Unable to access " 
+
                 "constructor of %s", className), e);
         } catch (InvocationTargetException e) {
-            throw new ClassNotFoundException(String.format("Unable to invoke " 
+
-                "constructor of %s", className), e);
+            throw new KafkaException(String.format("The constructor of %s 
threw an exception", className), e.getCause());

Review Comment:
   Have we checked that changing this exception doesn't cause an issue?



##########
clients/src/test/java/org/apache/kafka/common/KafkaFutureTest.java:
##########
@@ -637,7 +637,12 @@ public void testLeakCompletableFuture() throws 
NoSuchMethodException, Invocation
 
             // Check the CF from a minimal CompletionStage doesn't cause 
completion of the original KafkaFuture
             Method minimal = 
CompletableFuture.class.getDeclaredMethod("minimalCompletionStage");
-            CompletionStage<String> cs = (CompletionStage<String>) 
minimal.invoke(comfut);
+            CompletionStage<String> cs = null;
+            try {
+                cs = (CompletionStage<String>) minimal.invoke(comfut);
+            } catch (InvocationTargetException e) {
+                throw e.getCause();
+            }

Review Comment:
   Maybe we should have a helper `invoke` method since we do this many times in 
this test?



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