Update to jdk8u312

openjdk version "1.8.0_312"
OpenJDK Runtime Environment (Tencent Kona 8.0.8) (build 1.8.0_312-b1)
OpenJDK 64-Bit Server VM (Tencent Kona 8.0.8) (build 25.312-b1, mixed mode, sharing)

Features

• Vectorize UTF-8 decode
  • Use SIMD instruction perform UTF-8 decode
  • Use -XX:+UseUTF8UTF16Intrinsics to enable the feature
• Support asynchronous GC logging
  • Use -XX:+UseAsyncGCLog to enable the feature
• Provide Windows/Macos x86 build.
  • Please note that windows/Macos x86 build have not undergone large-scale verification and is for trial use only.
• Container usage
  • UseContainerSupport is disabled by default.
  • please use -XX:+UseContainerSupport when run in pod

Optimization

• 8175318: Performance issue regarding local JNI references

Bug Fix

• 8183369: RFC unconformity of HttpURLConnection with proxy