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Posted to dev@syncope.apache.org by "longstone (JIRA)" <ji...@apache.org> on 2019/03/11 20:12:00 UTC

[jira] [Created] (SYNCOPE-1448) Bean loading/register section not threadsafe

longstone created SYNCOPE-1448:
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             Summary: Bean loading/register section not threadsafe
                 Key: SYNCOPE-1448
                 URL: https://issues.apache.org/jira/browse/SYNCOPE-1448
             Project: Syncope
          Issue Type: Bug
          Components: core
            Reporter: longstone


Issue:

When two threads (T1,T2) arrive the section {{if (ApplicationContextProvider.getBeanFactory().containsSingleton(ruleClass.getName())) {}}at the same time they will both assume that there is no bean, which is right so far.

T1 register the bean as it should here {{ApplicationContextProvider.getBeanFactory().registerSingleton(ruleClass.getName(), rule);}}. As soon as T2does the same, an exception is thrown.

Solution:

When T1 and T2 found that a given bean is not there, they'll hit a synchronized section with double checking. This will prevent the duplicated creation and registration of a bean.



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