Does SmartGWT support/integrate with Spring 3.0?

[cjustice]

I'm trying to integrate my app so that it uses Spring 3.0 and DMI together. Spring 3.0 eliminated the org.springframework.web.context.ContextLoaderServlet in favor of a ServletContextListener, org.springframework.web.context.ContextLoaderListener.

I changed my web xml, so that it has this:

	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:app-config.xml</param-value>
	</context-param>

	<listener>
		<listener-class>
			org.springframework.web.context.ContextLoaderListener
		</listener-class>
	</listener>

On startup I get failures:

     [exec] 12:18:24,728 INFO  [STDOUT] 2011-02-15 12:18:24,728 [main] INFO  com.isomorphic.base.ISCInit - Isomorphic SmartClient Framework (SC_SNAPSHOT-2011-01-25/Pro Deployment 2011-01-25) - Initialization Complete
     [exec] 12:18:24,729 INFO  [STDOUT] 2011-02-15 12:18:24,729 [main] INFO  com.isomorphic.base.ISCInit - No ServletContext available yet - using container IO for now
     [exec] 12:18:24,753 INFO  [STDOUT] Problem loading builtinTypes.xml
     [exec] 12:18:24,778 INFO  [STDOUT] Exception when loading from __USE_CONTAINER__/jets/sc/system/schema/builtinTypes.xml:
     [exec] java.io.IOException: Configured for containerIO, but servletContext not available!  You need to install the Init servlet
     [exec] 	at com.isomorphic.io.ISCFile.<init>(ISCFile.java:139)
     [exec] 	at com.isomorphic.store.ProcessedFileCache.getObjectFromFile(ProcessedFileCache.java:135)
     [exec] 	at com.isomorphic.xml.XML.getXMLDocument(XML.java:254)
     [exec] 	at com.isomorphic.xml.XML.toDSRecords(XML.java:262)
     [exec] 	at com.isomorphic.xml.XML.toDSRecords(XML.java:265)
     [exec] 	at com.isomorphic.datasource.BasicDataSource.<clinit>(BasicDataSource.java:1603)
     [exec] 	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     [exec] 	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
     [exec] 	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
     [exec] 	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
     [exec] 	at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:126)
     [exec] 	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:74)
     [exec] 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:958)

and these:

    [exec] 12:18:25,048 INFO  [STDOUT] 2011-02-15 12:18:25,048 [main] WARN  com.isomorphic.validation.Validation - No such type 'string', not processing field value at /DataSource[@ID=InstantDataApp]/ID
     [exec] 12:18:25,048 INFO  [STDOUT] 2011-02-15 12:18:25,048 [main] WARN  com.isomorphic.validation.Validation - No such type 'string', not processing field value at /DataSource[@ID=InstantDataApp]/inheritsFrom
     [exec] 12:18:25,049 INFO  [STDOUT] 2011-02-15 12:18:25,049 [main] WARN  com.isomorphic.validation.Validation - No such type 'string', not processing field value at /DataSource[@ID=InstantDataApp]/fields/field[@name=ID]/name
     [exec] 12:18:25,050 INFO  [STDOUT] 2011-02-15 12:18:25,050 [main] WARN  com.isomorphic.validation.Validation - No such type 'string', not processing field value at /DataSource[@ID=InstantDataApp]/fields/field[@name=ID]/type
     [exec] 12:18:25,051 INFO  [STDOUT] 2011-02-15 12:18:25,051 [main] WARN  com.isomorphic.validation.Validation - No such type 'boolean', not processing field value at /DataSource[@ID=InstantDataApp]/fields/field[@name=dataSources]/multiple
     [exec] 12:18:25,051 INFO  [STDOUT] 2011-02-15 12:18:25,051 [main] WARN  com.isomorphic.validation.Validation - No such type 'string', not processing field value at /DataSource[@ID=InstantDataApp]/fields/field[@name=dataSources]/name
     [exec] 12:18:25,051 INFO  [STDOUT] 2011-02-15 12:18:25,051 [main] WARN  com.isomorphic.validation.Validation - No such type 'string', not processing field value at /DataSource[@ID=InstantDataApp]/fields/field[@name=dataSources]/type
     [exec] 12:18:25,052 INFO  [STDOUT] 2011-02-15 12:18:25,052 [main] WARN  com.isomorphic.validation.Validation - No such type 'boolean', not processing field value at /DataSource[@ID=InstantDataApp]/fields/field[@name=userTypes]/multiple
...

Is there a special configuration I need to get SmartGWT to work with Spring 3.0? Are they compatible?

Thanks,
Chris

[Isomorphic]

What this suggests is actually a classloader issue. You've got the Init servlet running, but subsequent logs indicate that classes are being loaded in a context where the Init servlet has not run.

This can happen from having multiple copies of Isomorphic .jars or other server .jars in your classpath.

[cjustice]

I think there is a disconnect here. Spring no longer provides a ContextLoaderServlet - they have switched to using a listener, and it is my understand the listeners execute after the Servlets have loaded.

The example provided in spring-hibernate-dmi will not run under Spring 3.0 as is. Has Isomorphic integrated with Spring 3.0 yet? Are they compatible? Is there an example I can use that demonstrates a working configuration?

Thanks,
Chris

[Isomorphic]

Yes, they are compatible and other users have reported success. We don't have a sample in the Showcase. Regardless, your problem is not strictly related to your Spring 3.0 upgrade, it's a classloader issue - please see previous response for how to resolve it.