do not include a / directory in the jar

ChangeLog.md

@@ -2,6 +2,7 @@ v1.0.1
 ======
 
 + Fix issue where non-class files are dropped when using relocation ([Issue #58](https://github.com/johnrengelman/shadow/issues/58))
++ Do not create a / directory inside the output jar.
 
 v1.0.0
 ======

src/main/groovy/com/github/jengelman/gradle/plugins/shadow/tasks/ShadowCopyAction.groovy

@@ -323,10 +323,8 @@ public class ShadowCopyAction implements CopyAction {
         }
 
         RelativeArchivePath getParent() {
-            if (!segments) {
+            if (!segments || segments.length == 1) {
                 return null
-            } else if (segments.length == 1) {
-                return new RelativeArchivePath(new ZipEntry('/'), null)
             } else {
                 //Parent is always a directory so add / to the end of the path
                 String path = segments[0..-2].join('/') + '/'

src/test/groovy/com/github/jengelman/gradle/plugins/shadow/ShadowPluginSpec.groovy

@@ -138,6 +138,9 @@ class ShadowPluginSpec extends PluginSpecification {
 
         and:
         contains(output, ['shadow/Passed.class', 'junit/framework/Test.class'])
+
+        and:
+        doesNotContain(output, ['/'])
     }
 
     def 'include project dependencies'() {