[camel] branch camel-3.4.x updated: fix unchecked generic for varargs compiler warning (#3997) (#3999)

[acosentino]

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acosentino pushed a commit to branch camel-3.4.x
in repository https://gitbox.apache.org/repos/asf/camel.git


The following commit(s) were added to refs/heads/camel-3.4.x by this push:
     new c0b4503  fix unchecked generic for varargs compiler warning (#3997) 
(#3999)
c0b4503 is described below

commit c0b45033b555ef5df29453a0ec11e47514d611ca
Author: Andrea Cosentino <anco...@gmail.com>
AuthorDate: Mon Jul 13 18:59:05 2020 +0200

    fix unchecked generic for varargs compiler warning (#3997) (#3999)
    
    * fix unchecked generic for varargs compiler warning
    
    to get rid of "unchecked generics array creation for varargs parameter" 
compiler warning
    
    * make SafeVarargs annotated method final
    
    By requiring that the method is final, the developer can guarantee that the 
declaration he made (namely that its varargs use is safe) is actually always 
true (provided of course that the developer actually provided a safe varargs 
method), and that it wasn't actually broken by a subclass incorrectly 
re-implementing the method.
    
    Co-authored-by: Yasser Zamani <yasserzam...@apache.org>
---
 .../src/main/java/org/apache/camel/model/TryDefinition.java            | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git 
a/core/camel-core-engine/src/main/java/org/apache/camel/model/TryDefinition.java
 
b/core/camel-core-engine/src/main/java/org/apache/camel/model/TryDefinition.java
index 5a202c7..57cf440 100644
--- 
a/core/camel-core-engine/src/main/java/org/apache/camel/model/TryDefinition.java
+++ 
b/core/camel-core-engine/src/main/java/org/apache/camel/model/TryDefinition.java
@@ -88,7 +88,8 @@ public class TryDefinition extends 
OutputDefinition<TryDefinition> {
      * @param exceptionType the exception(s)
      * @return the try builder
      */
-    public TryDefinition doCatch(Class<? extends Throwable>... exceptionType) {
+    @SafeVarargs
+    public final TryDefinition doCatch(Class<? extends Throwable>... 
exceptionType) {
         popBlock();
         List<Class<? extends Throwable>> list = Arrays.asList(exceptionType);
         CatchDefinition answer = new CatchDefinition(list);