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From "Sebb (JIRA)" <j...@apache.org>
Subject [jira] Created: (BSF-30) ScriptEngineManager swallows Exception when iterating factories
Date Tue, 06 Apr 2010 20:33:33 GMT
ScriptEngineManager swallows Exception when iterating factories

                 Key: BSF-30
                 URL: https://issues.apache.org/jira/browse/BSF-30
             Project: BSF
          Issue Type: Bug
          Components: BSF-3.x
    Affects Versions: BSF-3.0
            Reporter: Sebb

ScriptEngineManager swallows Exception when iterating factories.

This is not ideal - it should certainly not swallow ThreadDeath for example.
Unfortunately the Javadoc for ServiceRegistry.lookupProviders() only specifies that it may
generate an Error.

Note that the version of ScriptEngineManager in Sun Java 1.6 does not swallow Exception.
This leads to different behaviour when using bsf-engines on Java 1.5 and 1.6.
On 1.5, the BSF version of ScriptEngineManager is used - this continues to process factories
after an Error has occured.
However, on Java 1.6, the first error terminates the class constructor so the manager is not
available to create any engines at all.

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