Information about possible JDB enhancements

daniel.daugherty at daniel.daugherty at
Fri Jun 18 19:57:21 UTC 2021

Forwarding to serviceability-dev at ...


On 6/18/21 3:31 PM, Jakob Cornell wrote:
> Hi all,
> I'm hoping to become an OpenJDK contributor in order to make some 
> enhancements to JDB, which is my go-to tool for Java debugging. As an 
> example, JDB currently ignores empty commands, and I hope to make a 
> change so that entering an empty command results in the previous 
> command being rerun (as users coming from GDB will expect).  I would 
> also be interested in investigating implementation of conditional 
> breakpoints, assuming JDI supports this (I'm not familiar with it).
> I get the sense that these changes may not be priorities for the 
> OpenJDK development community (or perhaps may not even be desired), 
> and so I'm writing to try to get a sense of whether I'd be able to 
> find someone willing to sponsor changes like these.  If the answer is 
> no then I shouldn't bother to look into creating patches.  Can anybody 
> speak to the feasability of this?  Also, is there a more targeted 
> mailing list I should use?
> Thanks,
> Jakob

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