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Learn how to navigate the upgrade path from Java 21 to Java 25 in this comprehensive 23-minute technical video that addresses the potential challenges developers may encounter during migration. Discover the various breaking changes and deprecations that could affect your projects, including modifications to annotation processing behavior, final record pattern variables, and security property configurations. Explore critical updates to null checks in inner class constructors, unsafe memory access restrictions, and native access changes that may impact low-level operations. Understand the implications of Security Manager deprecation and file system operation changes specific to Windows environments. Examine Unicode updates and the removal of COMPAT locale data provider, along with significant removals including 32-bit support, GTK2, obsolete time zones, and various command line options. Review deprecations for removal affecting command line flags and modules, and learn about changes to metaspace and garbage collection printing separation. Gain insights into remote debugging modifications with jstat and jhsdb tools, ensuring a smooth transition to Java 25 while avoiding common pitfalls that could disrupt your development workflow.
