microsoft / microsoft/gctoolkit

Unified logs missing time stamps causes NPE

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#274 2 comments 0 reactions 0 assignees View on GitHub

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Dominant language
Java
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Merged PRs (30d)
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Description

Unified GC logs without a timestamp will cause NPE as all of the code expects a timestamp. Use first date stamp as a base of 0.000 seconds and then synthetically generate timestamps for each JVMEvent.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by tracing unified GC log parsing and the JVMEvent timestamp handling, then reproduce the NPE with a log that lacks timestamps. The issue is done when such logs no longer fail and each JVMEvent receives a synthetic timestamp based on the first date stamp at 0.000 seconds.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
performance, tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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