NPE When definition has no attributes
-------------------------------------
Key: TILES-388
URL: https://issues.apache.org/struts/browse/TILES-388
Project: Tiles
Issue Type: Bug
Components: tiles-core
Affects Versions: 2.1.2
Reporter: Marek Kałużny
When definition has no attributes defined, CachingLocaleUrlDefinitionDAO throws
NPE when it tries to iterate over LocalAttributeNames (because
Definition#getLocalAttributeNames() returns null instead of empty collection)
Stacktrace:
java.lang.NullPointerException
at
org.apache.tiles.definition.dao.CachingLocaleUrlDefinitionDAO.replaceDefinition(CachingLocaleUrlDefinitionDAO.java:340)
at
org.apache.tiles.definition.dao.CachingLocaleUrlDefinitionDAO.resolveWildcardDefinition(CachingLocaleUrlDefinitionDAO.java:313)
at
org.apache.tiles.definition.dao.CachingLocaleUrlDefinitionDAO.getDefinition(CachingLocaleUrlDefinitionDAO.java:125)
at
org.apache.tiles.definition.dao.CachingLocaleUrlDefinitionDAO.getDefinition(CachingLocaleUrlDefinitionDAO.java:53)
at
org.apache.tiles.definition.UrlDefinitionsFactory.getDefinition(UrlDefinitionsFactory.java:104)
at
org.apache.tiles.impl.BasicTilesContainer.getDefinition(BasicTilesContainer.java:363)
at
org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:616)
at
org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:322)
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