1 files changed, 5 insertions, 2 deletions
diff --git a/jack-tests/src/com/android/jack/test/toolchain/LegacyToolchain.java b/jack-tests/src/com/android/jack/test/toolchain/LegacyToolchain.java
index 512dae6..5bcf226 100644
--- a/jack-tests/src/com/android/jack/test/toolchain/LegacyToolchain.java
+++ b/jack-tests/src/com/android/jack/test/toolchain/LegacyToolchain.java
@@ -65,8 +65,11 @@ public class LegacyToolchain extends AndroidToolchain {
 
       srcToLib(jarFile, true /* zipFiles = */, sources);
 
-      if (jarjarRules != null) {
-        processWithJarJar(jarjarRules, jarFile, jarFileJarjar);
+      if (jarjarRules.size() > 0) {
+        if (jarjarRules.size() > 1) {
+          throw new AssertionError("Not yet supported");
+        }
+        processWithJarJar(jarjarRules.get(0), jarFile, jarFileJarjar);
       } else {
         jarFileJarjar = jarFile;
       }