Request for review: 7084245: Update usages of InternalError to use exception chaining

[Kumar Srinivasan]

Hi,

Sorry for the delay, was on vacation...comment inlined.
> Hi, here is a webrev[1] for some cleanup that i want to integrated in 
> tl-repositories.
>
> Alan Bateman had scanned the changes and gave me some good input[3] 
> for further discussion here:
>
> The changes to java.util.concurrent should go through Doug Lea's 
> upstream CVS. Alan told me that Chris Hegarty is on this topic 
> already. The suggested changes for this is here[2].
>
> I have changed some classes in awt / sun.java2d maybe someone of the 
> 2d-dev maillinglist can look at these changes.
> I also changed some classes in java/securtiy maybe someone of 
> security-dev maillinglist can look at these changes.
>
> Let me know if there is a need to split/rebase the main-webrev[1] to 
> review and/or push it individually.
>
> Mostly the patch changes exception-chains. But there are some places 
> where the patch changes behavoir:
>
> - I removed some printstackTraces in 
> sun.java2d.pipe.LoopPipe.getStrokesSpans and sun.misc.Launcher (Alan 
> told me that kumar maybe want to have a look at it?).

The methods in question in sun.misc.Launcher are not called by the java  
launcher,
I think these were added to facilitate the JavaWebstart Launcher javaws.
Nevertheless, the changes look good to me.

Thanks
Kumar


> - I changed java.text.Format.clone not to return null. I think it will 
> never happen. But if so throwing an InternalError seems to be better 
> than returning null and let all the extended classes crash in there 
> clone Method with a NullPointerException. And so catching an Exception 
> in java.text.DecimalFormat.clone is unnecessary.
>
> -- Sebastian
>
> [1] http://oss-patches.24.eu/openjdk8/InternalError/part2/7084245_main_0/
> [2] 
> http://oss-patches.24.eu/openjdk8/InternalError/part2/7084245_concurrent_0/
> [3] 
> http://mail.openjdk.java.net/pipermail/core-libs-dev/2011-August/007563.html