Java News Roundup: JDK 27 Release Schedule, Hibernate, LangChain4j, Keycloak, Helidon, Junie CLI

Weekly Java ecosystem roundup covering: JEP 532 (Primitive Types in Patterns) elevated to Candidate status for a fifth preview; JDK 27 proposed release schedule targeting General Availability on September 14, 2026; Hibernate ORM 7.3.0.Final with new KeyType enumeration and NaturalIdClass annotation; LangChain4j 1.1.0 with persistable/recoverable agentic execution state; Keycloak 26.6.0 adding full RFC 7523 JWT support and experimental MCP authorization server support; Helidon 4.4.1 maintenance release; a CVE in Spring Cloud Gateway where SSL bundle configuration was silently bypassed; Google ADK for Java 1.1.0 with Gemma model support; and JetBrains Junie CLI now auto-detecting and connecting to installed JetBrains IDEs.