openrewrite / openrewrite/rewrite

Call to 'intern()' on compile-time constant is unnecessary

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recipe
Dominant language
Java
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Avg merge
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Merged PRs (30d)
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Description

Describe the situation before applying the recipe

final var query = """
                         My constant
                        """.intern();

Describe the situation after applying the recipe

final var query = """
                         My constant
  """;
--.intern()
++;

Any additional context

https://en.wikipedia.org/wiki/String_interning

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 locating the existing Java recipe implementations and their unit tests, then use the supplied text-block constant example as the reproduction. Done means the recipe removes the unnecessary intern() call while leaving the constant text intact, with tests covering the transformation.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
devtools
Issue type
Refactor
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Clearly specified
Newbie friendliness
45/100

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