Ineffective synchronization in StandardTypeConverter constructor [SPR-14465]

[spring-projects-issues]

Juergen Hoeller opened SPR-14465 and commented

StandardTypeConverter's default constructor uses synchronized (this) for initializing a shared static DefaultConversionService. However, in a constructor, synchronization on this is effectively a no-op. Let's rather simply use a volatile variable there.

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Affects: 3.2.17, 4.2.7, 4.3.1

Issue Links:

• Shared DefaultConversionService instance e.g. for BeanPropertyRowMapper [SPR-14948] #19515 Shared DefaultConversionService instance e.g. for BeanPropertyRowMapper

Referenced from: commits 0065a16, 97d73eb, 6d91d54, cb64dd1

Backported to: 4.2.8, 3.2.18