DO NOT REPLY [Bug 34878] New: - Null Pointer Exception when include specifies a non-existent file and casesensitive is false

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http://issues.apache.org/bugzilla/show_bug.cgi?id=34878

           Summary: Null Pointer Exception when include specifies a non-
                    existent file and casesensitive is false
           Product: Ant
           Version: 1.6.3
          Platform: PC
        OS/Version: Windows 2000
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Core tasks
        AssignedTo: dev@ant.apache.org
        ReportedBy: hartsold@appliedbiosystems.com


Ran into this problem after upgrading from Ant 1.6.1 to 1.6.3. The following
task fails with a NullPointerException at line 875 in DirectoryScanner.java 
(DirectoryScanner.checkIncludePatterns()) if bar.txt does not exist and the
casesensitive attribute is false.. The task works fine (i.e., copies nothing)
when casesensitive is false if I use a wildcard somewhere in the filename.

    <copy todir="some-other-dir">
      <fileset dir="some-dir" casesensitive="no">
        <include name="bar.txt"/>
      </fileset>
    </copy>

Here's the last part of the stacktrace:
java.lang.NullPointerException
        at org.apache.tools.ant.DirectoryScanner.checkIncludePatterns(DirectoryS
canner.java:875)
        at org.apache.tools.ant.DirectoryScanner.scan(DirectoryScanner.java:808)

        at org.apache.tools.ant.types.AbstractFileSet.getDirectoryScanner(Abstra
ctFileSet.java:358)
        at org.apache.tools.ant.taskdefs.Copy.execute(Copy.java:404)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
        at org.apache.tools.ant.Task.perform(Task.java:364)
        at org.apache.tools.ant.Target.execute(Target.java:341)
        at org.apache.tools.ant.Target.performTasks(Target.java:369)
        at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
        at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
        at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExe
cutor.java:40)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
        at org.apache.tools.ant.Main.runBuild(Main.java:668)
        at org.apache.tools.ant.Main.startAnt(Main.java:187)
        at org.apache.tools.ant.launch.Launcher.run(Launcher.java:246)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:67)

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