3 files changed, 49 insertions, 0 deletions
diff --git a/test/files/neg/t4851/J.java b/test/files/neg/t4851/J.java
new file mode 100644
index 0000000000..9c35b8a16e
--- /dev/null
+++ b/test/files/neg/t4851/J.java
@@ -0,0 +1,15 @@
+public class J {
+  Object x;
+
+  public J(Object x) {
+    this.x = x;
+  }
+
+  public J(int x1, int x2, int x3, int x4, int x5, int x6) {
+    this.x = null;
+  }
+
+  public String toString() {
+    return "J:" + x.getClass();
+  }
+}
+\ No newline at end of file
diff --git a/test/files/neg/t4851/J2.java b/test/files/neg/t4851/J2.java
new file mode 100644
index 0000000000..82954d9489
--- /dev/null
+++ b/test/files/neg/t4851/J2.java
@@ -0,0 +1,11 @@
+public class J2<T> {
+  T x;
+
+  public <T> J(T x) {
+    this.x = x;
+  }
+
+  public String toString() {
+    return "J2:" + x.getClass();
+  }
+}
+\ No newline at end of file
diff --git a/test/files/neg/t4851/S.scala b/test/files/neg/t4851/S.scala
new file mode 100644
index 0000000000..deb42980ab
--- /dev/null
+++ b/test/files/neg/t4851/S.scala
@@ -0,0 +1,23 @@
+object Test {
+  val x1 = new J
+  val x2 = new J()
+  val x3 = new J(1, 2, 3, 4, 5)
+
+  val y1 = Some(1, 2, 3)
+  val y2 = new Some(1, 2, 3)
+
+  val z1 = new J2
+  val z2 = new J2()
+  val z3 = new J2(())
+
+  def main(args: Array[String]): Unit = {
+    println(x1)
+    println(x2)
+    println(x3)
+    println(y1)
+
+    println(z1)
+    println(z2)
+    println(z3)
+  }
+}