Merge pull request #1673 from paulp/serialversionuid

Fix for SerialVersionUID instability.

2 files changed, 26 insertions, 0 deletions

diff --git a/test/files/neg/serialversionuid-not-const.check b/test/files/neg/serialversionuid-not-const.check
new file mode 100644
index 0000000000..9c383d97ad
--- /dev/null
+++ b/test/files/neg/serialversionuid-not-const.check
@@ -0,0 +1,10 @@
+serialversionuid-not-const.scala:1: error: annotation argument needs to be a constant; found: 13L.toLong
+@SerialVersionUID(13l.toLong) class C1 extends Serializable
+                      ^
+serialversionuid-not-const.scala:3: error: annotation argument needs to be a constant; found: 13.asInstanceOf[Long]
+@SerialVersionUID(13.asInstanceOf[Long]) class C3 extends Serializable
+                                 ^
+serialversionuid-not-const.scala:4: error: annotation argument needs to be a constant; found: Test.bippy
+@SerialVersionUID(Test.bippy) class C4 extends Serializable
+                       ^
+three errors found
diff --git a/test/files/neg/serialversionuid-not-const.scala b/test/files/neg/serialversionuid-not-const.scala
new file mode 100644
index 0000000000..f0e3ef4e7e
--- /dev/null
+++ b/test/files/neg/serialversionuid-not-const.scala
@@ -0,0 +1,16 @@
+@SerialVersionUID(13l.toLong) class C1 extends Serializable
+@SerialVersionUID(13l) class C2 extends Serializable
+@SerialVersionUID(13.asInstanceOf[Long]) class C3 extends Serializable
+@SerialVersionUID(Test.bippy) class C4 extends Serializable
+
+object Test {
+  val bippy = 13L
+
+  def show(c: Class[_]) = println(java.io.ObjectStreamClass.lookup(c).getSerialVersionUID)
+  def main(args: Array[String]): Unit = {
+    show(classOf[C1])
+    show(classOf[C2])
+    show(classOf[C3])
+    show(classOf[C4])
+  }
+}