Update stale external javadoc links
Update stale external javadoc links

Certain external javadoc links were broken or out of date, namely
Hibernate, Java SE and EE 6, Quartz, and Apache Pluto. All resolve
properly now.

Issue: SPR-8720

spring-projects/spring-framework,spring-projects/spring-framework,spring-projects/spring-framework,spring-projects/spring-framework,spring-projects/spring-framework,spring-projects/spring-framework,spring-projects/spring-framework