Juan Pablo Santos Rodríguez created JSPWIKI-808:
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Summary: Refactor of o.a.w.HsqlDbUtils.stop()
Key: JSPWIKI-808
URL: https://issues.apache.org/jira/browse/JSPWIKI-808
Project: JSPWiki
Issue Type: Improvement
Components: Unit Testing
Reporter: Juan Pablo Santos Rodríguez
Priority: Minor
Snipping texts from the dev ML:
{quote}
*\[...]*
It seems that tearing down the HSQL server instance isn’t finished yet when the
following test starts, leading to the „port already in use” error message.
*\[...]*
Workaround for testing Hsql
Waits 1000 milliseconds after each test before starting the next. Otherwise
the tests often fail reporting that the listening port of the database
server is already in use.
{quote}
This approach was included as part of 2.10.0-svn-59. However, the
org.hsqldb.Server.stop() javadoc states:
{quote}
Stops this server asynchronously.
This method returns immediately, regardless of current state. In order to
discover the success or failure of this operation, server state must be polled
or a subclass of Server must be used that overrides the setState method to
provide state change notification.
Returns: the server state noted at entry to this method
{quote}
Possible approaches:
* polling
* subclassing (as per javadoc)
* starting / stopping the Server for the whole test
* use
[innodb-maven-plugin|https://github.com/bmatthews68/inmemdb-maven-plugin],
which is already used by IT tests (note that this may require to launch maven
to run the unit test)
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