René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Further executions of setup-java overwrite previous toolchain entries for different JDK versions","articleBody":"**Description:**\nPreviously, it was possible to execute setup-java multiple times with different JDKs or JDK versions and have them all in the Maven toolchains XML. Now, it is always overwritten (contrary to the documentation under https://github.com/actions/setup-java/blob/main/docs/advanced-usage.md#Modifying-Maven-Toolchains).\n\nUsing one execution of setup-java with multiple versions still works, but has the drawback that the output contains only the path of the last version.\n\n**Task version:**\nSince v5.5.0, probably because of #534.\n\n**Platform:**\n- [x] Ubuntu\n- [ ] macOS\n- [ ] Windows\n\n**Runner type:**\n- [ ] Hosted\n- [x] Self-hosted\n\n**Repro steps:**  \nExecute setup-java consecutively with different versions. Output the Maven toolchains XML.\n\n**Expected behavior:**\nMultiple toolchain entries should be present.\n\n**Actual behavior:**\nOnly a single toolchain entry is present.","author":{"url":"https://github.com/christian-ertl","@type":"Person","name":"christian-ertl"},"datePublished":"2026-07-10T16:06:06.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/1099/setup-java/issues/1099"}