diff options
| -rw-r--r-- | src/main/javassist/bytecode/stackmap/MapMaker.java | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/main/javassist/bytecode/stackmap/MapMaker.java b/src/main/javassist/bytecode/stackmap/MapMaker.java index ab5c863a..6d2bf685 100644 --- a/src/main/javassist/bytecode/stackmap/MapMaker.java +++ b/src/main/javassist/bytecode/stackmap/MapMaker.java @@ -467,7 +467,7 @@ public class MapMaker extends Tracer { public StackMap toStackMap2(ConstPool cp, TypedBlock[] blocks) { StackMap.Writer writer = new StackMap.Writer(); - int n = blocks.length; + int n = blocks.length; // should be > 0 boolean[] effective = new boolean[n]; TypedBlock prev = blocks[0]; @@ -483,7 +483,10 @@ public class MapMaker extends Tracer { num++; } } - + + if (num == 0) + return null; + writer.write16bit(num); for (int i = 0; i < n; i++) if (effective[i]) |