fix(spark4): support Spark 4.2 Jetty 12 (ee10) in history server UI - #80
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Prajaktcs wants to merge 3 commits into
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fix(spark4): support Spark 4.2 Jetty 12 (ee10) in history server UI#80Prajaktcs wants to merge 3 commits into
Prajaktcs wants to merge 3 commits into
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Spark 4.2 upgraded to Jetty 12, shading the servlet classes under org.sparkproject.jetty.ee10.servlet. DataflintJettyUtils only probed the Jetty 9-11 package (org.sparkproject.jetty.servlet / org.eclipse.jetty.servlet), so createStaticHandler failed with ClassNotFoundException: org.eclipse.jetty.servlet.ServletContextHandler and the history UI returned HTTP 500. Extend the reflective class lookup to try the ee10 package first, keeping the older packages as fallbacks (backwards compatible with Spark 3.x / 4.0 / 4.1). Also branch the two Jetty-11-specific init-params that changed in Jetty 12: the DefaultServlet resource param (resourceBase -> baseResource) and the gzip param namespace. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Add a pluginspark4 integration test against Spark 4.2.0 and an example_4_2_0 project so the Jetty 12 history/live UI fix is covered on the classpath that ships ee10. Co-authored-by: Cursor <cursoragent@cursor.com>
Spark 4.2 requires Scala 2.13.18+; bump the project Scala version and fork the example run with the build-root CWD so local example_4_2_0/run works. Co-authored-by: Cursor <cursoragent@cursor.com>
Prajaktcs
marked this pull request as ready for review
July 31, 2026 02:53
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Summary
baseResource/ gzip init-param changes inDataflintJettyUtilsDataflintJettyUtilsSpecagainst Spark 4.2.0 and anexample_4_2_0projectMurmurHash3.caseClassHashNoSuchMethodError)Test plan
sbt 'pluginspark4/testOnly org.apache.spark.dataflint.api.DataflintJettyUtilsSpec'sbt 'example_4_2_0/run'→ http://localhost:10000/dataflint/ returns 200