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-rw-r--r--activesupport/lib/active_support/core_ext/exception.rb8
1 files changed, 8 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/exception.rb b/activesupport/lib/active_support/core_ext/exception.rb
index 14cd577066..57c8568334 100644
--- a/activesupport/lib/active_support/core_ext/exception.rb
+++ b/activesupport/lib/active_support/core_ext/exception.rb
@@ -1,3 +1,11 @@
+module ActiveSupport
+ if RUBY_VERSION >= '1.9'
+ FrozenObjectError = RuntimeError
+ else
+ FrozenObjectError = TypeError
+ end
+end
+
class Exception # :nodoc:
def clean_message
Pathname.clean_within message