Re: [jgroups-users] In which case Rsp could be null?
Questions/problems related to using JGroups <[email protected]>
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Which version?
In 4.0, callRemoteMethods() can actually return *null*. Do you have some
code that reproduces this?
On 06/04/16 5:32 PM, Questions/problems related to using JGroups wrote:
> Hello,
>
> I use RPC, and getting NullPointerException in very unusual place:
>
> Here is my code example:
>
> -----------------
>
> RspList<Boolean> result = dispatcher.callRemoteMethods(null,
> "fileExists", new Object[] { localFileName }, newClass[] {
> String.class}, OPT_ALL_IN_5_SEC);
>
> for (Rsp<Boolean> rsp : result.values()) {
>
> if (rsp.getValue()) {
>
> -------------------
>
> the last line sometimes throws NPE. Looks like rsp is null.
>
> The fileExists method returns primitive boolean, so the result cannot be
> null by definition.
>
> Looks like something went wrong during the cluster communication.
>
> What could it be?
>
>
> Thanks,
>
> Eugene
>
>
>
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--
Bela Ban, JGroups lead (http://www.jgroups.org)
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