spring-projects / spring-projects/spring-boot

Investigate JarFileEntries index entry

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#5,668 1 comment 0 reactions 0 assignees View on GitHub

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theme: performance type: enhancement
Dominant language
Java
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Description

The JarFileEntries is used as the index for a Jar file and is constructed when the file is loaded. We could probably compute it during repackage and save as an entry. This might make loading the zips faster.

Contributor guide

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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 how JarFileEntries is constructed when a Jar file is loaded and how the repackage process could produce an additional entry. Measure whether loading the zip becomes faster with a saved index, and define done as a documented decision or a validated implementation plan.

Written by the indexing model from the issue text.

Assessment

Tech stack
java, spring-boot
Domain
build-system, performance
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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