IDEA-74017 Infer @NotNull/@Nullable annotations for final fields from constructor(s)

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

@@ -0,0 +1,21 @@
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class Doo {
+  private final Object myA;
+  private final Object myB;
+
+  public Doo(@Nullable Object myA, @NotNull Object myB) {
+    this.myA = myA;
+    this.myB = myB;
+  }
+
+  int foo() {
+    if (<warning descr="Condition 'myB != null' is always 'true'">myB != null</warning> &&
+    <warning descr="Method invocation 'myA.equals(myB)' may produce 'java.lang.NullPointerException'">myA.equals(myB)</warning>) {
+      return 2;
+    }
+
+    return myA.hashCode();
+  }
+}