[weld-issues] [JBoss JIRA] (WELD-920) Memory leak through the creational context of an @AppScoped bean when injecting Instance<>

Memory leak through the creational context of an @AppScoped bean when injecting Instance<> ------------------------------------------------------------------------------------------ Key: WELD-920 URL: https://issues.jboss.org/browse/WELD-920 Project: Weld Issue Type: Bug Components: Scopes & Contexts Affects Versions: 1.1.0.CR3, 1.1.1.Final Reporter: Adam Warski Fix For: 2.0.0.Alpha2 Attachments: leak-test-1.war, leak-test.tar.gz Given a simple dependent-scoped bean: public class InstanceBean {}, and an application-scoped bean (see below) to which an instance of the dependent-scoped bean is injected, each time the get() method is called on the instance, even though it's not used, a reference to it stays in the creational context of the application scoped bean (http://screencast.com/t/XqjQ1GB7Wv3). That way after several requests, where each one calls the method, more and more memory is leaked (http://screencast.com/t/s1VBx49i). Attached is a simple web application demonstrating this. To reproduce, deploy to AS6, click the "leak" button several times, and analyze the heap dump e.g. in JProfiler. @ApplicationScoped @Named("test") public class AppScopedBean { private Instance<InstanceBean> instanceBeanInstance; @Inject public AppScopedBean(Instance<InstanceBean> instanceBeanInstance) { this.instanceBeanInstance = instanceBeanInstance; } public AppScopedBean() { } public void leakOneInstance() { System.out.println("Leaked!"); instanceBeanInstance.get(); } }