The public position of the OSGi Alliance on JPMS is best expressed in this OSGi Alliance blog article.
Although prior Releases of OSGi Specifications operate correctly on Java SE Release 9 and later SE Releases, the OSGi Core Release 7 Specification adds new features – Multi-Release JAR Support and Runtime Discovery of Java Platform Packages – to take advantage of Java SE releases incorporating JPMS.
More details on these new R7 features are described in this OSGi Alliance Blog article
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