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…eption on Java 21 hive-metastore 2.3.7 references javax.servlet.Filter internally when opening the metastore client. Spring Boot 3.x migrated to Jakarta Servlet (jakarta.*) and no longer provides javax.servlet on the classpath. The existing exclusions removed javax.servlet transitive dependencies without providing a runtime shim, causing ClassNotFoundException at startup. Adding javax.servlet-api:3.1.0 at runtime scope in beekeeper-scheduler, beekeeper-scheduler-apiary, and beekeeper-metadata-cleanup satisfies Hive's classloading without interfering with Spring's Jakarta servlet stack. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…let ClassCastException Adding javax.servlet-api:3.1.0 at runtime (for Hive classloading) allows the old tomcat:jasper-runtime JspServlet to be loaded. Tomcat 10.x (Spring Boot 3.x) then tries to cast it to jakarta.servlet.Servlet and fails with ClassCastException. Excluding tomcat:jasper-compiler and tomcat:jasper-runtime from hive-metastore in beekeeper-cleanup prevents the old Jasper from appearing on the classpath entirely. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
… Hive modules beekeeper-scheduler: excludes tomcat:jasper-compiler and tomcat:jasper-runtime from hive-metastore. Without these exclusions, beekeeper-scheduler-apiary (which depends on beekeeper-scheduler) inherits old Jasper via the transitive chain. Old JspServlet implements javax.servlet.Servlet, which Tomcat 10.x cannot cast to jakarta.servlet.Servlet. beekeeper-path-cleanup: adds javax.servlet-api:3.1.0 at runtime scope. As a Spring Boot web app using hive-metastore transitively via beekeeper-cleanup, it needs javax.servlet on the classpath so HiveMetaStoreClient.open() can load javax.servlet.Filter at runtime. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
githubjianli
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Apr 23, 2026
haroldjimenez
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Apr 24, 2026
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After migrating to Spring Boot 3.x + Java 21, applications that use hive-metastore 2.3.7 fail at runtime
hive-metastore 2.3.7 was compiled against the old javax.servlet API. Spring Boot 3 / Tomcat 10 migrated to the jakarta.servlet namespace (Jakarta EE 9), so javax.servlet.Filter is no longer on the classpath.
Solution: