hg: jdk/jdk: 8207160: ClassReader::adjustMethodParams can potentially return null if the args list is empty

[vicente.romero at oracle.com]

Changeset: e3411e5e473d
Author:    vromero
Date:      2018-09-12 16:28 -0700
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/e3411e5e473d

8207160: ClassReader::adjustMethodParams can potentially return null if the args list is empty
Reviewed-by: mcimadamore, cushon

! src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/ClassReader.java
+ test/langtools/tools/javac/AvoidNPEAtClassReader/AvoidNPEAtClassReaderTest.java
+ test/langtools/tools/javac/AvoidNPEAtClassReader/pkg/Outer$Inner.jasm
+ test/langtools/tools/javac/AvoidNPEAtClassReader/pkg/Outer.jasm