From f6ce907f69cc497e4556f90e74ea9876fe71274d Mon Sep 17 00:00:00 2001
From: Nils Schwabe
Date: Fri, 25 Jul 2014 11:32:28 +0200
Subject: [CRCFile] Add checks to prevent null pointer exception

[ClassTest] Made pretty
---
 src/main/java/org/openslx/imagemaster/crcchecker/CRCFile.java | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src/main/java/org/openslx/imagemaster/crcchecker/CRCFile.java')

diff --git a/src/main/java/org/openslx/imagemaster/crcchecker/CRCFile.java b/src/main/java/org/openslx/imagemaster/crcchecker/CRCFile.java
index 1fa7453..357082b 100644
--- a/src/main/java/org/openslx/imagemaster/crcchecker/CRCFile.java
+++ b/src/main/java/org/openslx/imagemaster/crcchecker/CRCFile.java
@@ -117,6 +117,8 @@ public class CRCFile
 	{
 		if ( crcSums == null )
 			loadSums();
+		if (crcSums.size() == 0)
+			return 0;
 
 		if ( blockNumber < 0 )
 			return 0;
@@ -136,6 +138,8 @@ public class CRCFile
 	{
 		if ( crcSums == null )
 			loadSums();
+		if (crcSums.size() == 0)
+			return new ArrayList<>();
 		return this.crcSums;
 	}
 
@@ -156,6 +160,8 @@ public class CRCFile
 	{
 		if ( crcSums == null )
 			loadSums();
+		if (crcSums.size() == 0)
+			return 0;
 		return this.crcSums.get( 0 );
 	}
 }
-- 
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