Report suppressed exceptions as exception group

[adinauer]

#skip-changelog

:scroll: Description

Report exceptions returned by Throwable.getSuppressed() to Sentry as exception groups. They show up like this:

Links can be clicked and take you to the exception on the same page.

:bulb: Motivation and Context

Fixes #542

:green_heart: How did you test it?

:pencil: Checklist

• [ ] I reviewed the submitted code.
• [ ] I added tests to verify the changes.
• [ ] No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• [ ] I updated the docs if needed.
• [ ] Review from the native team if needed.
• [ ] No breaking change or entry added to the changelog.
• [ ] No breaking change for hybrid SDKs or communicated to hybrid SDKs.

:crystal_ball: Next steps

[github-actions[bot]]

	Fails
:no_entry_sign:	Please consider adding a changelog entry for the next release.

	Messages
:book:	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

Instructions and example for changelog

Please add an entry to CHANGELOG.md to the "Unreleased" section. Make sure the entry includes this PR's number.

Example:

## Unreleased

- Report suppressed exceptions as exception group ([#3396](https://github.com/getsentry/sentry-java/pull/3396))

If none of the above apply, you can opt out of this check by adding #skip-changelog to the PR description.

Generated by :no_entry_sign: dangerJS against 18ad266a112adbc2f792547b3372de95f8871881

[github-actions[bot]]

Performance metrics :rocket:

	Plain	With Sentry	Diff
Startup time	449.88 ms	525.45 ms	75.57 ms
Size	1.70 MiB	2.28 MiB	595.99 KiB

Previous results on branch: feat/hsm-42c-suppressed-exceptions

Startup times

Revision	Plain	With Sentry	Diff
0a61517241020da4a08b335084b0df2096cc9206	394.71 ms	454.42 ms	59.71 ms
37d1e27c51e306d034b0686c70344c1531edef87	379.49 ms	423.67 ms	44.18 ms
99b5ed4607a3fcc26ae19a93953c9909ea6d6dfc	386.04 ms	460.83 ms	74.79 ms
25e177134bb732818c9ca306f013f8d7adbfe14e	383.98 ms	459.50 ms	75.52 ms
1c2fbfe421b94d51ab387f8ea4c5a0abd66cdb6c	403.73 ms	463.84 ms	60.11 ms
a23c14591e38951c4458c109ace2a77b0e939a5c	396.22 ms	458.98 ms	62.76 ms
702ae01f0d0771816fea5af4d8f471c0a90de447	403.63 ms	476.15 ms	72.51 ms
c822b54b1a07ceb74c468ae442e770e47edb28cc	431.59 ms	549.47 ms	117.88 ms
0c124b6d29b02a0f8be2371169a4b81691e8aef0	382.98 ms	458.90 ms	75.92 ms

App size

Revision	Plain	With Sentry	Diff
0a61517241020da4a08b335084b0df2096cc9206	1.70 MiB	2.28 MiB	595.98 KiB
37d1e27c51e306d034b0686c70344c1531edef87	1.70 MiB	2.28 MiB	595.95 KiB
99b5ed4607a3fcc26ae19a93953c9909ea6d6dfc	1.70 MiB	2.28 MiB	595.99 KiB
25e177134bb732818c9ca306f013f8d7adbfe14e	1.70 MiB	2.28 MiB	595.98 KiB
1c2fbfe421b94d51ab387f8ea4c5a0abd66cdb6c	1.70 MiB	2.28 MiB	595.99 KiB
a23c14591e38951c4458c109ace2a77b0e939a5c	1.70 MiB	2.28 MiB	595.97 KiB
702ae01f0d0771816fea5af4d8f471c0a90de447	1.70 MiB	2.28 MiB	595.97 KiB
c822b54b1a07ceb74c468ae442e770e47edb28cc	1.70 MiB	2.28 MiB	595.97 KiB
0c124b6d29b02a0f8be2371169a4b81691e8aef0	1.70 MiB	2.28 MiB	595.97 KiB

[rodolfoBee]

Do we have an ETA for when it can be merged and released?

[adinauer]

@rodolfoBee since we're merging this into 8.x it might be a couple weeks until we release an early alpha of 8.x as we want to include some changes around Performance powered by OTel.

[adinauer]

@rodolfoBee we just discussed this internally and we're planning to merge this sooner and do an alpha release without Performance powered by OpenTelemetry. Just need to prepare some things for the release.