KITFORMA · EDITORIAL GUIDE
Why does Java compile successfully but throw NoSuchMethodError at runtime?
KitForma editorial guide. The caller may have compiled against a different binary API from the class actually loaded in production. This is not the same as a source method-name typo.
Step-by-step guidance
The caller may have compiled against a different binary API from the class actually loaded in production. This is not the same as a source method-name typo.
Inspect the resolved runtime dependency graph and locate the loaded class’s code source. Compare the expected method signature, including parameter and return types, with that artifact. Align the library versions and remove unintended duplicates through the build configuration; do not copy random JAR files into the deployment until the error disappears.
Run the packaged application, not only IDE tests, against a small invocation of the failing path. A transitive dependency or container-provided library may differ from the compile classpath. Recompiling your code cannot create a method missing from the deployed dependency.
Sources and verification
Sources checked:
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This starter guide was prepared by KitForma with AI assistance. It is not presented as a real member question or an independent user review. Check the sources and the result with your own file; report corrections in the discussion.