1 files changed, 5 insertions, 0 deletions

diff --git a/src/cuchaz/enigma/analysis/MethodImplementationsTreeNode.java b/src/cuchaz/enigma/analysis/MethodImplementationsTreeNode.java
index b529f3f..b7434e8 100644
--- a/src/cuchaz/enigma/analysis/MethodImplementationsTreeNode.java
+++ b/src/cuchaz/enigma/analysis/MethodImplementationsTreeNode.java
@@ -29,6 +29,11 @@ public class MethodImplementationsTreeNode extends DefaultMutableTreeNode
         
         public MethodImplementationsTreeNode( Translator deobfuscatingTranslator, MethodEntry entry )
         {
+                if( entry == null )
+                {
+                        throw new IllegalArgumentException( "entry cannot be null!" );
+                }
+                
                 m_deobfuscatingTranslator = deobfuscatingTranslator;
                 m_entry = entry;
         }