JDK 17 dramatically refactors how Metaspace (native memory for class metadata) is allocated. The Windows java.exe launcher passes different default flags to the JVM, resulting in:
Why should you upgrade or install this specific version? jdk17windowsx64binexe better
If you use Java for small scripts or CLI tools (e.g., JAR-based DevOps utilities), JDK 17’s java.exe uses a default CDS archive that includes the core modules. On Windows NVMe SSDs, a simple java -version executes 15-20% faster than JDK 11. JDK 17 dramatically refactors how Metaspace (native memory