Velocity (1.7) падает когда начинает испытывать значительную нагрузку :
когда надо генерировать много много писем (как пример - отсылаем все пользователям форума - сообщение поменять пароль)
вот такая вот ошибка :
| Код |
java.lang.RuntimeException: this should not happen
at org.apache.velocity.util.MapFactory.create(MapFactory.java:108)
at org.apache.velocity.runtime.resource.ResourceCacheImpl.<init>(ResourceCacheImpl.java:50)
at sun.reflect.GeneratedConstructorAccessor16.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at org.apache.velocity.util.ClassUtils.getNewInstance(ClassUtils.java:105)
at org.apache.velocity.runtime.resource.ResourceManagerImpl.initialize(ResourceManagerImpl.java:165)
at org.apache.velocity.runtime.RuntimeInstance.initializeResourceManager(RuntimeInstance.java:730)
at org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:263)
at org.apache.velocity.app.VelocityEngine.init(VelocityEngine.java:93)
....
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.GeneratedConstructorAccessor12.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.apache.velocity.util.MapFactory.create(MapFactory.java:103)
... 31 more
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
|
или так
| Код |
org.apache.velocity.exception.VelocityException: Error loading directive.properties! Something is very wrong if these properties aren't being located.
Either your Velocity distribution is incomplete or your Velocity jar file is corrupted!
at org.apache.velocity.runtime.RuntimeInstance.initializeDirectives(RuntimeInstance.java:904)
at org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:264)
at org.apache.velocity.app.VelocityEngine.init(VelocityEngine.java:93)
....
|
java.lang.OutOfMemoryError: GC overhead limit exceeded
именно каждый раз падает на VelocityEngine.init
как настроить Velocity чтобы этого не происходило ?
шаблон самый простой :
| Код |
VelocityEngine ve = new VelocityEngine();
ve.setProperty("resource.loader", "class");
ve.setProperty("class.resource.loader.class", "org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader");
ve.init();
...
|
в чем может быть проблема ? |