IDEA-74934 "Constant conditions & exceptions": take type parameters into consideration, take 1 (methods)

java/java-tests/testData/inspection/dataFlow/fixture/AnnotatedTypeParameters.java

@@ -0,0 +1,32 @@
+import foo.NotNull;
+import foo.Nullable;
+
+import java.util.List;
+
+class Test {
+  private static void test(List<@NotNull Object> list) {
+    if (<warning descr="Condition 'list.get(0) == null' is always 'false'">list.get(0) == null</warning>) {
+      return;
+    }
+    list.add(<warning descr="Passing 'null' argument to parameter annotated as @NotNull">null</warning>);
+  }
+  private static void test2(List<@Nullable Object> list) {
+    if (list.get(0) == null) {
+      return;
+    }
+    list.add(null);
+  }
+
+  private static void test3(Ref<@NotNull Object> ref) {
+    if (ref.value == null) {
+      return;
+    }
+    ref.value = null;
+  }
+
+
+}
+
+class Ref<T> {
+  T value;
+}