Update dependency org.apache.tika:tika-core to v4 by solrbot · Pull Request #4853 · apache/solr

solrbot · 2026-09-01T01:02:59Z

This PR contains the following updates:

Package	Type	Update	Change
org.apache.tika:tika-core (source)	dependencies	major	`3.3.1` → `4.0.0`

Release Notes

apache/tika (org.apache.tika:tika-core)

`v4.0.0`

Compare Source

`v3.3.2`

Compare Source

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epugh · 2026-09-01T21:02:13Z

Seems early enough that we can move to tika 4?

janhoy · 2026-09-01T21:27:14Z

Commonmark for Markdown parsing is now part of tika-core. Our extraction handler currently does not rely on MD, but explicitly requests xml from tika-server. So we could attempt excluding these three new jar deps and see if it will fly. There may be some part of core depending on these classes even if we don't use them explicitly so maybe not worth the risk?

epugh · 2026-09-01T21:30:08Z

@tballison somebody moved my cheese ;-).

solrbot · 2026-09-01T23:14:40Z

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…xml. This is mostly a "hey, look, I got us to tika 4", but it feels like its still trying to push Tika 4 into a tika 3 approach, when Tika wants to be different.

janhoy · 2026-09-03T20:35:38Z

The 3.3.x line remains supported and continues to receive bug fixes and dependency upgrades

I'd say we stay on 3.x for Solr 10, and work on exploring how to best utilize Tika 4 on main only, i.e. no backport. to 10.x. Of course, if we get to a stable back-compat impl of Tika 4 on main, it can be back-ported without risk. Even if Tika gains features like AI stuff, we are not obliged to use those :-)

tballison · 2026-09-03T20:42:15Z

On phone with @epugh now, lol. Let me know if I can help, or if I've done enough damage. 🤣

epugh · 2026-09-03T21:52:31Z

Umm... at least locally the bats test and unit tests passed!!! So maybe this isn't the lift I thought it was?

epugh · 2026-09-03T21:53:25Z

The 3.3.x line remains supported and continues to receive bug fixes and dependency upgrades

I'd say we stay on 3.x for Solr 10, and work on exploring how to best utilize Tika 4 on main only, i.e. no backport. to 10.x. Of course, if we get to a stable back-compat impl of Tika 4 on main, it can be back-ported without risk. Even if Tika gains features like AI stuff, we are not obliged to use those :-)

That works for me... As @tballison pointed out, it's literally a .0.0 version!

Copilot

🟡 Changes recommended

License validation will fail on a stale checksum, while error and partial-extraction handling can produce incorrect request outcomes.

Once you've addressed the issues Copilot identified, you can request another Copilot review.

Pull request overview

Upgrades Solr Cell to Tika 4 and adapts its server integration to Tika’s new endpoints, metadata keys, and per-request configuration.

Changes:

Updates Tika and Docker images to 4.0.0, including dependencies and licenses.
Adds multipart parser configuration and password handling.
Updates extraction tests and documentation for Tika 4 behavior.

File summaries

File	Description
`gradle/libs.versions.toml`	Updates Tika to 4.0.0.
`solr/modules/extraction/gradle.lockfile`	Locks Tika and CommonMark dependencies.
`TikaServerExtractionBackend.java`	Implements Tika 4 request and response handling.
`TikaServerParser.java`	Supports renamed recursive metadata content keys.
`ExtractionRequest.java`	Adds per-request Tika configuration.
`ExtractingParams.java`	Defines the new configuration parameter.
`ExtractingDocumentLoader.java`	Passes configuration from request parameters.
`TikaServerExtractionBackendTest.java`	Tests configuration, passwords, and Tika 4 behavior.
`TikaServerContainerRule.java`	Runs the Tika 4 container with optional configuration.
`ExtractingRequestHandlerTikaServerTest.java`	Enables per-request configuration in integration tests.
`ExtractingRequestHandlerTestAbstract.java`	Updates expected Tika metadata keys.
`tika-server-config.json`	Enables test-time per-request configuration.
`test_extraction.bats`	Updates the packaging test container.
`indexing-with-tika.adoc`	Documents Tika 4 and parser configuration.
`tutorial-diy.adoc`	Updates the tutorial container version.
`tika-core-4.0.0.jar.sha1`	Adds the Tika checksum.
`commonmark-LICENSE-BSD.txt`	Adds the CommonMark license.
`commonmark-NOTICE.txt`	Adds the CommonMark notice file.
`commonmark-0.30.0.jar.sha1`	Adds the CommonMark checksum.
`commonmark-ext-gfm-tables-0.30.0.jar.sha1`	Adds the tables extension checksum.
`commonmark-ext-gfm-strikethrough-0.30.0.jar.sha1`	Adds the strikethrough extension checksum.
`PR#4853-update-org-apache-tika-tika-core.yml`	Records the dependency update.

Review details

Files reviewed: 21/22 changed files
Comments generated: 5
Review effort level: Balanced

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@@ -0,0 +1 @@
+f370d8619de9e19329b2cc117943c83468c2ff9f


+    if (code == 422 && !request.tikaServerRecursive) {
+      PushbackInputStream peekable = new PushbackInputStream(responseStream, 1);
+      int firstByte = peekable.read();
+      if (firstByte == -1) {
+        throw new SolrException(


              .tikaServerRecursive(tikaserverRecursive)
              .tikaServerTimeoutSeconds(tikaTimeoutSecs)
              .tikaServerRequestHeaders(Map.of())
+              .tikaServerConfigJson(params.get(ExtractingParams.TIKASERVER_CONFIG_JSON))


+   * have {@code allowPerRequestConfig=true} set, or the request is rejected with 403. Ignored for
+   * recursive (tikaserver.recursive) requests, since TikaServer has no XML-output variant of
+   * /rmeta/config.


+          // Tika 4.x renamed its metadata keys under a single lowercase tk: prefix (TIKA-4816)
+          "fmap.tk:parsed-by",
          "ignored_parser",
-          "fmap.X-TIKA:Parsed-By",
+          "fmap.tk:parsed-by-full-set",
          "ignored_parser",


Update dependency org.apache.tika:tika-core to v4

f019a75

solrbot added the exempt-stale Prevent a PR from going stale label Sep 1, 2026

solrbot added this to the 10.x milestone Sep 1, 2026

github-actions Bot added dependencies Dependency upgrades module:extraction tool:build admin-ui labels Sep 1, 2026

solrbot and others added 2 commits September 1, 2026 01:03

Add changelog entry for PR#4853

17bcad6

Add missing license for tika 4

fe73492

epugh self-assigned this Sep 1, 2026

barebones implmentation that doesn't not use markdown, it stays with …

d9daf06

…xml. This is mostly a "hey, look, I got us to tika 4", but it feels like its still trying to push Tika 4 into a tika 3 approach, when Tika wants to be different.

github-actions Bot added documentation Improvements or additions to documentation tests labels Sep 3, 2026

Merge remote-tracking branch 'upstream/main' into pr/4853

d8643fa

github-actions Bot removed the admin-ui label Sep 3, 2026

epugh added 2 commits September 3, 2026 17:42

Support Tika 4 method of passing in configuraiton.

5ccf463

Unused...

c631731

epugh requested review from janhoy and a balanced review from Copilot September 3, 2026 21:55

Copilot started reviewing on behalf of epugh September 3, 2026 21:56 View session

Copilot AI reviewed Sep 3, 2026

View reviewed changes

janhoy removed this from the 10.x milestone Sep 3, 2026

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Update dependency org.apache.tika:tika-core to v4 - #4853

Update dependency org.apache.tika:tika-core to v4#4853
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tballison commented Sep 3, 2026 •

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		f370d8619de9e19329b2cc117943c83468c2ff9f

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solrbot commented Sep 1, 2026

Release Notes

v4.0.0

v3.3.2

Configuration

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epugh commented Sep 1, 2026

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janhoy commented Sep 1, 2026

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epugh commented Sep 1, 2026

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`v4.0.0`

`v3.3.2`

tballison commented Sep 3, 2026 •

edited

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