RFR: 7490: Trigger action does not return error message on failure. [v2]

[Virag Purnam]

> If trigger action encounters any exception/error, it does not display the trigger value. On failure with the failure message, trigger value also should be displayed for the user. 
> 
> For example, if we are writing log to the drive which does not exists. Trigger action fails with IO exception. 
> 
> <img width="563" alt="FileWriteExceptionWithoutShowingTriggerValue" src="https://github.com/user-attachments/assets/9ec6b71e-ba14-432a-b51b-3865327cdeac">
> 
> With this change, trigger value has been displayed along with IO exception.
> 
> <img width="594" alt="FileWriteExceptionShowingTriggerValue" src="https://github.com/user-attachments/assets/f026e9ca-56f7-44a1-8af9-ea2d1018f34c">
> 
> 
> This change has been done for all the trigger actions. 
> 
> 
> Along with this, few basic path and email validation has been added.
> 
> Path validation:
> 
> <img width="523" alt="PathValidation" src="https://github.com/user-attachments/assets/839c97eb-940f-4a90-ba22-bf1bc654e06c">
> 
> Email validation:
> 
> <img width="574" alt="EmailValidation" src="https://github.com/user-attachments/assets/1b99889a-4d3e-4a51-a990-10f24376a7c3">

Virag Purnam has updated the pull request incrementally with one additional commit since the last revision:

  7490: Trigger action does not return error message on failure.

-------------

Changes:
  - all: https://git.openjdk.org/jmc/pull/581/files
  - new: https://git.openjdk.org/jmc/pull/581/files/26088a86..c5551602

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jmc&pr=581&range=01
 - incr: https://webrevs.openjdk.org/?repo=jmc&pr=581&range=00-01

  Stats: 4 lines in 2 files changed: 2 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jmc/pull/581.diff
  Fetch: git fetch https://git.openjdk.org/jmc.git pull/581/head:pull/581

PR: https://git.openjdk.org/jmc/pull/581