fileExcludePattern causing null pointer exception

[Glaikun]

Hello,

java.lang.NullPointerException at org.apache.tools.ant.DirectoryScanner.normalizePattern(DirectoryScanner.java:797) at org.apache.tools.ant.DirectoryScanner.setExcludes(DirectoryScanner.java:751) at net.masterthought.jenkins.CucumberReportPublisher.findJsonFiles(CucumberReportPublisher.java:59) at net.masterthought.jenkins.CucumberReportPublisher.perform(CucumberReportPublisher.java:97) at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)

Currently experiencing the above error in version 0.0.24
looks like it is caused by fileExcludePattern in CucumberReportPublisher.java.

For fileIncludePattern this works due to being default when value is null or empty.
For fileExcludePattern this goes onto - scanner.setExcludes(new String[]{fileExcludePattern});
regardless of value.

I can fix this if this is easier.
Cheers,
Andrew