SpringSource/spring-integration — pull request #739 by garyrussell (2013-02-07 19:12:58+00:00)
Title: INT-2922 Fix TypeConverter Concurrency Issue

During initialization, it is possible for type conversion to
fail because a second thread accesses a partially built list
of PropertyEditors. This is because getDefaultEditor(Class) is
not thread-safe.

Add a test with mocks and spies to verify concurrent access
to the method occurs before the fix, and not after the fix.

Synchronize the call to getDefaultEditor().