FULL PRODUCT VERSION :
java version "1.8.0-ea"
Java(TM) SE Runtime Environment (build 1.8.0-ea-b121)
Java HotSpot(TM) 64-Bit Server VM (build 25.0-b63, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [versie 6.1.7601]

EXTRA RELEVANT SYSTEM CONFIGURATION :
Apache Maven 3.1.1 (0728685237757ffbf44136acec0402957f723d9a; 2013-09-17 17:22:22+0200)
Maven home: D:\apache-maven-3.1.1\bin\..
Java version: 1.8.0-ea, vendor: Oracle Corporation
Java home: c:\Program Files\Java\jdk1.8.0\jre
Default locale: nl_NL, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "amd64", family: "dos"

A DESCRIPTION OF THE PROBLEM :
As part of https://jira.codehaus.org/browse/MNG-5551 I faced the following issue regarding javadoc:

The excludedocfilessubdir is ignored

This seems to be a Windows specific issue, since the Linux buildserver has no issues.

REGRESSION. Last worked in version 7u45

ADDITIONAL REGRESSION INFORMATION:
java version "1.7.0_45"
Java(TM) SE Runtime Environment (build 1.7.0_45-b18)
Java HotSpot(TM) 64-Bit Server VM (build 24.45-b08, mixed mode)

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
The maven-javadoc-plugin generates the following files:
[javadoc.bat]
"C:\Program Files\Java\jdk1.8.0\jre\..\bin\javadoc.exe" @options @packages

[options]
-encoding
'ISO-8859-1'
-protected
-quiet
-sourcepath
'C:/Temp/maven-javadoc-plugin/src/test/resources/unit/resources-with-excludes-test/src/main/java;C:/Temp/maven-javadoc-plugin/src/test/resources/unit/resources-with-excludes-test/src/main/javadoc'
-charset
'UTF-8'
-d
'C:/Temp/maven-javadoc-plugin/target/test/unit/resources-with-excludes-test/target/site/apidocs'
-docencoding
'UTF-8'
-docfilessubdirs
-excludedocfilessubdir
'test'
-windowtitle
'Maven Javadoc Plugin resources 1.0-SNAPSHOT API'

[packages]
resources.test
resources.test2
---

Other required files can be found here: https://svn.apache.org/repos/asf/maven/plugins/trunk/maven-javadoc-plugin/src/test/resources/unit/resources-with-excludes-test/



EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
assertFalse( new File( apidocs, "resources/test/doc-files/maven-feather.png" ).exists() );
ACTUAL -
previous assert fails, since the file does exist. However it shouldn't be there.

REPRODUCIBILITY :
This bug can be reproduced always.