[udig-devel] [jira] Created: (UDIG-1387) Double-checked locking is broken

[Dirk Starke (JIRA)]

Double-checked locking is broken
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                 Key: UDIG-1387
                 URL: http://jira.codehaus.org/browse/UDIG-1387
             Project: uDIG
          Issue Type: Bug
          Components: API catalog
    Affects Versions: UDIG 1.1-RC14
            Reporter: Dirk Starke
            Priority: Minor
         Attachments: double.patch

The double checked locking idiom used in some tutorial classes is broken (see http://www.javaworld.com/jw-02-2001/jw-0209-double.html). This pattern must not be used anymore in any Java program, thus using it in tutorial code is misleading.

The attached patch fixes the code.

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