Summary

Obsolete UseImplicitStableValues in JDK 13 and expire it in JDK 14.

Problem

UseImplicitStableValues was added to treat String.value as a stable, trusted field, but was made redundant when String.value was explicitly annotated with @Stable in JDK-8150180.

Solution

Obsolete and expire UseImplicitStableValues, removing the small piece of code in the compiler guarded by this.

Specification

Obsolete UseImplicitStableValues in JDK 13.