replaced moronic @Nullable with Contract

java/java-psi-api/src/com/intellij/codeInsight/AnnotationUtil.java

@@ -21,6 +21,7 @@ import com.intellij.psi.util.PsiTreeUtil;
 import com.intellij.psi.util.PsiUtil;
 import com.intellij.util.ArrayUtil;
 import gnu.trove.THashSet;
+import org.jetbrains.annotations.Contract;
 import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -328,6 +329,7 @@ public class AnnotationUtil {
    * @param annotations annotations qualified names or patterns. Patterns can have '*' at the end
    * @return <code>true</code> if annotated of at least one annotation from the annotations list
    */
+  @Contract("null,_ -> false")
   public static boolean checkAnnotatedUsingPatterns(@Nullable PsiModifierListOwner owner, @NotNull Collection<String> annotations) {
     final PsiModifierList modList;
     if (owner == null || (modList = owner.getModifierList()) == null) return false;