add converter to update old mappings format

fix a few decompiler issues too

1 files changed, 7 insertions, 1 deletions

diff --git a/src/cuchaz/enigma/bytecode/MethodParameterWriter.java b/src/cuchaz/enigma/bytecode/MethodParameterWriter.java
index 5d4ca1a..853928c 100644
--- a/src/cuchaz/enigma/bytecode/MethodParameterWriter.java
+++ b/src/cuchaz/enigma/bytecode/MethodParameterWriter.java
@@ -18,6 +18,7 @@ import javassist.CtClass;
 import cuchaz.enigma.mapping.ArgumentEntry;
 import cuchaz.enigma.mapping.BehaviorEntry;
 import cuchaz.enigma.mapping.BehaviorEntryFactory;
+import cuchaz.enigma.mapping.Signature;
 import cuchaz.enigma.mapping.Translator;
 
 public class MethodParameterWriter {
@@ -35,7 +36,12 @@ public class MethodParameterWriter {
                         BehaviorEntry behaviorEntry = BehaviorEntryFactory.create(behavior);
 
                         // get the number of arguments
-                        int numParams = behaviorEntry.getSignature().getArgumentTypes().size();
+                        Signature signature = behaviorEntry.getSignature();
+                        if (signature == null) {
+                                // static initializers have no signatures, or arguments
+                                continue;
+                        }
+                        int numParams = signature.getArgumentTypes().size();
                         if (numParams <= 0) {
                                 continue;
                         }