hg: jdk9/sandbox/langtools: 8158224: NullPointerException in com.sun.tools.javac.comp.Modules.checkCyclicDependencies when module missing

[chris.hegarty at oracle.com]

Changeset: b4e9df9d2f31
Author:    sadayapalam
Date:      2016-07-28 10:13 +0530
URL:       http://hg.openjdk.java.net/jdk9/sandbox/langtools/rev/b4e9df9d2f31

8158224: NullPointerException in com.sun.tools.javac.comp.Modules.checkCyclicDependencies when module missing
Reviewed-by: jlahoda

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Modules.java
+ test/tools/javac/modules/T8158224/Processor.java
+ test/tools/javac/modules/T8158224/T8158224.java
+ test/tools/javac/modules/T8158224/T8158224.out
+ test/tools/javac/modules/T8158224/mods/foo/module-info.java