hg: jdk9/dev/langtools: 8175823: doclet crashes when documenting a single class in a module.

[bhavesh.x.patel at oracle.com]

Changeset: d2f92cb767a6
Author:    bpatel
Date:      2017-04-14 17:23 -0700
URL:       http://hg.openjdk.java.net/jdk9/dev/langtools/rev/d2f92cb767a6

8175823: doclet crashes when documenting a single class in a module.
Reviewed-by: jjg, ksrini

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/ModuleWriterImpl.java
! test/jdk/javadoc/doclet/testModules/TestModules.java
+ test/jdk/javadoc/doclet/testModules/moduleNoExport/module-info.java
+ test/jdk/javadoc/doclet/testModules/moduleNoExport/testpkgmdlNoExport/TestClassInModuleNoExport.java