IDEA-149077 Default decompiler is chosen for several classes instead of Fernflower - tests

testData/obfuscated/m.java

@@ -0,0 +1,19 @@
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.Set;
+
+public class m<T> implements k<T> {
+   private Set<T> a = new LinkedHashSet();
+
+   public void a(T var1) {
+      this.a.add(var1);
+   }
+
+   public void a(Collection<? extends T> var1) {
+      this.a.addAll(var1);
+   }
+
+   public Set<T> a() {
+      return this.a;
+   }
+}