JDK 13 RFR of JDK-8208371: Provided supported mechanims to create a ModuleElement for an unnamed module

[Joseph D. Darcy]

Hello,

Please review the change and CSR to implement

     JDK-8208371: Provided supported mechanims to create a ModuleElement 
for an unnamed module
     webrev:  http://cr.openjdk.java.net/~darcy/8208371.0/
     CSR: https://bugs.openjdk.java.net/browse/JDK-8216527

Patch below.

Thanks,

-Joe

--- 
old/src/java.compiler/share/classes/javax/lang/model/util/Elements.java 
2019-01-10 14:40:14.594256000 -0800
+++ 
new/src/java.compiler/share/classes/javax/lang/model/util/Elements.java 
2019-01-10 14:40:14.342130000 -0800
@@ -189,7 +189,7 @@
      /**
       * Returns a module element given its fully qualified name.
       *
-     * If the named module cannot be found, {@code null} is
+     * If the requested module cannot be found, {@code null} is
       * returned. One situation where a module cannot be found is if
       * the environment does not include modules, such as an annotation
       * processing environment configured for a {@linkplain
@@ -199,7 +199,7 @@
       * @implSpec The default implementation of this method returns
       * {@code null}.
       *
-     * @param name  the name
+     * @param name  the name, or an empty string for an unnamed module
       * @return the named module element, or {@code null} if it cannot 
be found
       * @see #getAllModuleElements
       * @since 9
--- 
old/test/langtools/tools/javac/processing/model/element/TestModuleElementNames.java 
2019-01-10 14:40:15.174546001 -0800
+++ 
new/test/langtools/tools/javac/processing/model/element/TestModuleElementNames.java 
2019-01-10 14:40:14.918418000 -0800
@@ -23,7 +23,7 @@

  /*
   * @test
- * @bug 8163989
+ * @bug 8163989 8208371
   * @summary Test basic workings of naming methods on ModuleElement
   * @library /tools/javac/lib
   * @modules java.compiler