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Letting the reloading class loader handle all the classes can lead to ClassCastException(s) because instances of the same classes loaded by different class loaders can not be assigned to each other. To prevent this problem we suggest that struts.class.reloading.acceptClasses is used to limit the classes loaded by the reloading class loader, so only actions are handled by it. This constant supports a comma separated list of regular expressions:

Code Block
typexml
<constant name="struts.class.reloading.acceptClasses" value="com\.myproject\.example\.actions\..*" />
Warning

This feature is experimental, and should never be used in production systems.

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Setting

Description

Default

Possible Values

struts.objectFactory.spring.autoWire

The autowire strategy

name

name,type,auto, or constructor

struts.objectFactory.spring.autoWire.alwaysRespect

Whether the autowire strategy should always be used, or if the framework should try to guess the best strategy based on the situation

false for backwards-compatibility

true or false

struts.objectFactory.spring.useClassCache

Whether to have Spring use its class cache or not

true

true or false

struts.class.reloading.watchList

List of jar files or directories to watch for changes

null

Comma separated list of absolute or relative paths to jars or directories

struts.class.reloading.acceptClasses

List of regular expressions of accepted class names

null

Comma separated list of regular expressions of classes that will be loaded by the reloading class loader(we suggest to add regular expressions so only action classes are handled by the reloading class loader)

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