Fix warnings about ancestors calls creating generic arrays.

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MOS_MIGRATED_REVID=91890175

1 files changed, 2 insertions, 1 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/analysis/RuleDefinition.java b/src/main/java/com/google/devtools/build/lib/analysis/RuleDefinition.java
index 77670d567a..2c0fbd9939 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/RuleDefinition.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/RuleDefinition.java
@@ -96,7 +96,8 @@ public interface RuleDefinition {
       public abstract Builder type(RuleClassType type);
       public abstract Builder factoryClass(Class<? extends RuleConfiguredTargetFactory> factory);
       public abstract Builder ancestors(List<Class<? extends RuleDefinition>> ancestors);
-      public Builder ancestors(Class<? extends RuleDefinition>... ancstrs) {
+      @SafeVarargs
+      public final Builder ancestors(Class<? extends RuleDefinition>... ancstrs) {
         return ancestors(Arrays.asList(ancstrs));
       }
       public abstract Metadata build();