GET SUBFOLDER failed miserably

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Create an INPUT folder
2. Copy the .kjb, ktr files from the pdi folder of this distribution to INPUT 
folder
3. Run it on PDI 5.1.0

What is the expected output? What do you see instead?

Here are the errors, all for trying to get subfolders.
2014/08/05 09:46:17 - Spoon - Transformation opened.
2014/08/05 09:46:17 - Spoon - Launching transformation [process-files]...
2014/08/05 09:46:17 - Spoon - Started the transformation execution.
2014/08/05 09:46:17 - process-files - Dispatching started for transformation 
[process-files]
2014/08/05 09:46:17 - Get ${INPUT_DIR} SubFolders.0 - ERROR (version 5.1.0.0, 
build 1 from 2014-06-19_19-02-57 by buildguy) : Unexpected error
2014/08/05 09:46:17 - Get ${INPUT_DIR} SubFolders.0 - ERROR (version 5.1.0.0, 
build 1 from 2014-06-19_19-02-57 by buildguy) : java.lang.NullPointerException
2014/08/05 09:46:17 - Get ${INPUT_DIR} SubFolders.0 -   at 
org.pentaho.di.trans.steps.getsubfolders.GetSubFolders.processRow(GetSubFolders.
java:88)
2014/08/05 09:46:17 - Get ${INPUT_DIR} SubFolders.0 -   at 
org.pentaho.di.trans.step.RunThread.run(RunThread.java:62)
2014/08/05 09:46:17 - Get ${INPUT_DIR} SubFolders.0 -   at 
java.lang.Thread.run(Thread.java:745)
2014/08/05 09:46:17 - Get ${INPUT_DIR} SubFolders.0 - Finished processing (I=0, 
O=0, R=0, W=0, U=0, E=1)
2014/08/05 09:46:17 - process-files - Transformation detected one or more steps 
with errors.
2014/08/05 09:46:17 - process-files - Transformation is killing the other steps!
2014/08/05 09:46:17 - transform_script, is_windows.0 - We didn't receive a row 
while setting the default values.
2014/08/05 09:46:17 - transform_script, is_windows.0 - Finished after 0 rows.
2014/08/05 09:46:17 - Get ${OUTPUT_DIR} SubFolders.0 - ERROR (version 5.1.0.0, 
build 1 from 2014-06-19_19-02-57 by buildguy) : Unexpected error
2014/08/05 09:46:17 - Get ${OUTPUT_DIR} SubFolders.0 - ERROR (version 5.1.0.0, 
build 1 from 2014-06-19_19-02-57 by buildguy) : java.lang.NullPointerException
2014/08/05 09:46:17 - Get ${OUTPUT_DIR} SubFolders.0 -  at 
org.pentaho.di.trans.steps.getsubfolders.GetSubFolders.processRow(GetSubFolders.
java:88)
2014/08/05 09:46:17 - Get ${OUTPUT_DIR} SubFolders.0 -  at 
org.pentaho.di.trans.step.RunThread.run(RunThread.java:62)
2014/08/05 09:46:17 - Get ${OUTPUT_DIR} SubFolders.0 -  at 
java.lang.Thread.run(Thread.java:745)
2014/08/05 09:46:17 - Get ${OUTPUT_DIR} SubFolders.0 - Finished processing 
(I=0, O=0, R=0, W=0, U=0, E=1)
2014/08/05 09:46:17 - index / file.0 - No rows found in target stream.
2014/08/05 09:46:17 - index / folder.0 - No rows found in target stream.
2014/08/05 09:46:18 - process-files - Transformation detected one or more steps 
with errors.
2014/08/05 09:46:18 - process-files - Transformation is killing the other steps!
2014/08/05 09:46:19 - process-files - ERROR (version 5.1.0.0, build 1 from 
2014-06-19_19-02-57 by buildguy) : Errors detected!
2014/08/05 09:46:19 - Spoon - The transformation has finished!!
2014/08/05 09:46:19 - process-files - ERROR (version 5.1.0.0, build 1 from 
2014-06-19_19-02-57 by buildguy) : Errors detected!
2014/08/05 09:46:19 - process-files - ERROR (version 5.1.0.0, build 1 from 
2014-06-19_19-02-57 by buildguy) : Errors detected!

What version of the product are you using? On what operating system?

Pentaho PDI 5.1.0

Please provide any additional information below.

Original issue reported on code.google.com by David.S....@gmail.com on 5 Aug 2014 at 1:52