Upgrade build to Gradle 2.10 [SPR-13484]

[spring-projects-issues]

Juergen Hoeller opened SPR-13484 and commented

Let's upgrade to the latest Gradle version available at the time of our Spring Framework 4.3 RC1...

---

Issue Links:

• Upgrade build to Gradle 2.5 for JDK 9 support [SPR-13012] #17603 Upgrade build to Gradle 2.5 for JDK 9 support
• Upgrade build to Gradle 2.12 [SPR-14048] #18620 Upgrade build to Gradle 2.12