diff --git a/dex-ir/src/main/java/com/googlecode/dex2jar/ir/ts/TypeTransformer.java b/dex-ir/src/main/java/com/googlecode/dex2jar/ir/ts/TypeTransformer.java
index ff42c469..f859e5dc 100644
--- a/dex-ir/src/main/java/com/googlecode/dex2jar/ir/ts/TypeTransformer.java
+++ b/dex-ir/src/main/java/com/googlecode/dex2jar/ir/ts/TypeTransformer.java
@@ -495,10 +495,7 @@ private static String mergeTypeEx(String a, String b) {
                     return b;
                 } else if (ta.fixed) {
                     if (ta != tb) {
-                        if (as == 0) {
-                            throw new RuntimeException();
-                        }
-                        return buildArray(as - 1, "L");
+                        return buildArray(as == 0 ? 0 : as - 1, "L");
                     }
                     if (ta == TypeClass.INT) {
                         String chooseType = "I";
@@ -615,7 +612,7 @@ private static String mergeProviderType(String a, String b) {
             } else if (ta.fixed) {
                 // special allow merge of Z and I
                 if ((ta == TypeClass.INT && tb == TypeClass.BOOLEAN)
-                        || (tb == TypeClass.INT && ta == TypeClass.BOOLEAN)) {
+                    || (tb == TypeClass.INT && ta == TypeClass.BOOLEAN)) {
                     return "I";
                 }
                 if (ta != tb) {