4 files changed, 28 insertions, 0 deletions
diff --git a/test/files/neg/t6988.check b/test/files/neg/t6988.check
new file mode 100644
index 0000000000..acb7b3cb08
--- /dev/null
+++ b/test/files/neg/t6988.check
@@ -0,0 +1,7 @@
+t6988.scala:3: error: annotation argument needs to be a constant; found: 13.asInstanceOf[Long]
+@SerialVersionUID(13.asInstanceOf[Long]) case class IdentifyMessage1(userName: String, user: User, code: Int)
+                                 ^
+t6988.scala:8: error: annotation argument needs to be a constant; found: O.SerialUID
+@SerialVersionUID(O.SerialUID) case class IdentifyMessage3(userName: String, user: User, code: Int)
+                    ^
+two errors found
diff --git a/test/files/neg/t6988.scala b/test/files/neg/t6988.scala
new file mode 100644
index 0000000000..8171dc9dd0
--- /dev/null
+++ b/test/files/neg/t6988.scala
@@ -0,0 +1,10 @@
+case class User()
+
+@SerialVersionUID(13.asInstanceOf[Long]) case class IdentifyMessage1(userName: String, user: User, code: Int)
+@SerialVersionUID(13l) case class IdentifyMessage2(userName: String, user: User, code: Int)
+object O {
+  val SerialUID = "13".toLong
+}
+@SerialVersionUID(O.SerialUID) case class IdentifyMessage3(userName: String, user: User, code: Int)
+
+
diff --git a/test/files/run/t6988.check b/test/files/run/t6988.check
new file mode 100644
index 0000000000..5db04832d6
--- /dev/null
+++ b/test/files/run/t6988.check
@@ -0,0 +1,2 @@
+#1 13
+#2 13
diff --git a/test/files/run/t6988.scala b/test/files/run/t6988.scala
new file mode 100644
index 0000000000..45dfe33461
--- /dev/null
+++ b/test/files/run/t6988.scala
@@ -0,0 +1,9 @@
+case class User()
+
+@SerialVersionUID(13l) case class IdentifyMessage1(userName: String, user: User, code: Int)
+@SerialVersionUID(10l + 3l) case class IdentifyMessage2(userName: String, user: User, code: Int)
+
+object Test extends App {
+  println("#1 " + java.io.ObjectStreamClass.lookup(IdentifyMessage1("hei", User(), 8).getClass).getSerialVersionUID)
+  println("#2 " + java.io.ObjectStreamClass.lookup(IdentifyMessage2("hei", User(), 8).getClass).getSerialVersionUID)
+}