StandardJavaFileManager::setLocationForModule specification misses 'Implementation Requirements:'

Summary

Add an @implSpec for the default method for setLocationForModule.

Problem

While the method in question has a suitable @throws clause, unlike other default methods, it does not have an @implSpec tag. For consistency, it would be better if it did.

Solution

Add a boilerplate @implSpec for consistency with the other default methods on this interface.

Specification

diff --git a/src/java.compiler/share/classes/javax/tools/StandardJavaFileManager.java b/src/java.compiler/share/classes/javax/tools/StandardJavaFileManager.java
--- a/src/java.compiler/share/classes/javax/tools/StandardJavaFileManager.java  (revision 4a7ccf36e9a3978c437db3efe892dd23e8a0b772)
+++ b/src/java.compiler/share/classes/javax/tools/StandardJavaFileManager.java  (date 1626230189255)
@@ -372,6 +372,9 @@
      * {@linkplain #setLocation setLocation} or
      * {@linkplain #setLocationFromPaths setLocationFromPaths}.
      *
+     * @implSpec
+     * The default implementation throws {@link UnsupportedOperationException}.
+     *
      * @throws IllegalStateException if the location is not a module-oriented
      *  or output location.
      * @throws UnsupportedOperationException if this operation is not supported by