fix index out of bounds for email fetcher

cmsWebApp/src/performa/utils/PerformaEmailFetcher.java

@@ -481,12 +481,12 @@ public class PerformaEmailFetcher implements Runnable, InitialisationParticipant
 
     private static String getFirstName(String name) 
     {
-        return (name.split("\\w+").length > 1) ? name.substring(0, name.lastIndexOf(' ')) : name;
+        return ((name.split("\\w+").length > 1) &&  (name.lastIndexOf(' ') > 0 )) ? name.substring(0, name.lastIndexOf(' ')) : name;
     }
     
     private static String getLastName(String name) 
     {
-        return (name.split("\\w+").length > 1) ? name.substring(name.lastIndexOf(" ")+1) : "";
+        return ((name.split("\\w+").length > 1) &&  (name.lastIndexOf(' ') > 0 )) ? name.substring(name.lastIndexOf(" ")+1) : "";
     }
     
     public static String getJobIdentifierFromEmail(String strReceipient)
@@ -509,7 +509,7 @@ public class PerformaEmailFetcher implements Runnable, InitialisationParticipant
             {
                 BodyPart bodyPart = multipart.getBodyPart(j);
 
-                if(Part.ATTACHMENT.equalsIgnoreCase(bodyPart.getDisposition())) 
+                if(Part.ATTACHMENT.equalsIgnoreCase(bodyPart.getDisposition()) && bodyPart.getFileName() != null && !bodyPart.getFileName().isEmpty()) 
                 {
                     bytes   =   IOUtils.readInputStreamToBytes(bodyPart.getInputStream());