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arookieofcanda-rookie-of-C-language
2161a2ca03
Running a main class in a multi-module Maven project could fail with "Cannot resolve the classpath: jdtls: Attempted to beginRule: P/<dependency>, does not match outer scope rule: P/<module>". `java.project.getClasspaths` and `getSettings` ran outside the jdt.ls build lock, so they could overlap a build or an m2e refresh of a sibling module that takes a nested Eclipse scheduling rule. The launch now resolves the classpath and JDK under the same build lock the build commands use. A delegated external build already holds that lock across the launch, so its callers pass `build_lock_held` instead of waiting on it again, which would deadlock. Fixes #933. Co-authored-by: a-rookie-of-C-language <186315048+a-rookie-of-C-language@users.noreply.github.com>