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Difference between revisions of "Virgo/FAQ"
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| + | = How can I change the version of Spring framework in the user region? = | ||
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| + | You can upgrade or downgrade the version of Spring framework in the user region provided the new version satisfies the version range required by Spring DM. Spring DM 1.2.1, which is used in all versions of Virgo up to and including 3.0, requires a version of Spring framework in the range [2.5.6, 4.0). | ||
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| + | To upgrade or downgrade, delete the Spring framework bundles and .libd file in repository/ext and then add the corresponding bundles and .libd file for the replacement version of Spring framework. The Spring framework bundles are listed in the .libd file if you are uncertain about which they are. Then re-start Virgo with the -clean switch and the user region should now run with the replacement version of Spring framework. | ||
| + | |||
| + | Note that it is not necessary to change the version of Spring framework used by the Virgo kernel as that version is independent of the version of Spring framework used by the user region. | ||
Revision as of 03:29, 29 June 2011
Contents
- 1 How can I diagnose class loading problems?
- 2 What's a uses constraint and what can I do if one is violated?
- 3 How can I import a package into someone else's bundle without hacking the manifest?
- 4 What support does Virgo have for thread context class loaders?
- 5 How can I get a graphical application to work in Virgo?
- 6 How can I change the version of Spring framework in the user region?
How can I diagnose class loading problems?
See this blog.
What's a uses constraint and what can I do if one is violated?
Uses constraints are explained in this blog.
Virgo typically produces helpful diagnostics for uses constraint violations. To solve uses constraint violations, see Rob Harrop's blog and Neil Bartlett's blog.
How can I import a package into someone else's bundle without hacking the manifest?
See this blog.
What support does Virgo have for thread context class loaders?
See this blog.
How can I get a graphical application to work in Virgo?
To get GUI apps to work in Virgo, you have to edit lib/java6-server.profile in order to add some packages to the org.osgi.framework.bootdelegation property.
On Mac, you need to add some Apple packages:
org.osgi.framework.bootdelegation = \
org.eclipse.virgo.osgi.extensions.*,\
org.eclipse.virgo.osgi.launcher.*,\
org.eclipse.virgo.kernel.authentication,\
com.sun.*,\
javax.xml.*,\
org.apache.xerces.jaxp.*,\
org.w3c.*,\
org.xml.*,\
sun.*,\
apple.*,\
com.apple.*
On Windows, you just need to add com.sun.* as sun.* is already in the list.
org.osgi.framework.bootdelegation = \
org.eclipse.virgo.osgi.extensions.*,\
org.eclipse.virgo.osgi.launcher.*,\
org.eclipse.virgo.kernel.authentication,\
com.sun.*,\
javax.xml.*,\
org.apache.xerces.jaxp.*,\
org.w3c.*,\
org.xml.*,\
sun.*,\
com.sun.*
How can I change the version of Spring framework in the user region?
You can upgrade or downgrade the version of Spring framework in the user region provided the new version satisfies the version range required by Spring DM. Spring DM 1.2.1, which is used in all versions of Virgo up to and including 3.0, requires a version of Spring framework in the range [2.5.6, 4.0).
To upgrade or downgrade, delete the Spring framework bundles and .libd file in repository/ext and then add the corresponding bundles and .libd file for the replacement version of Spring framework. The Spring framework bundles are listed in the .libd file if you are uncertain about which they are. Then re-start Virgo with the -clean switch and the user region should now run with the replacement version of Spring framework.
Note that it is not necessary to change the version of Spring framework used by the Virgo kernel as that version is independent of the version of Spring framework used by the user region.