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Mohammad Abul Khaer commented on VELTOOLS-154: ---------------------------------------------- Thank you Mike for your reply. I will add in velocity mailing list. > Bad tool causes velocity servlet to fail to initialize, chew 100% CPU > --------------------------------------------------------------------- > > Key: VELTOOLS-154 > URL: https://issues.apache.org/jira/browse/VELTOOLS-154 > Project: Velocity Tools > Issue Type: Bug > Components: VelocityView > Affects Versions: 2.0 > Environment: Sun/Oracle Java 1.7.0_09: Java HotSpot(TM) 64-Bit Server > VM version 23.5-b02 > Velocity 1.7 > Velocity Tools 2.0 + a few (unrelated) backports from trunk > Reporter: Christopher Schultz > Priority: Minor > > I added a class to my tools.xml which can't be instantiated (because it > doesn't have a no-arg constructor). The result when accessing my first > velocity template was a nearly endless stack trace like this: > Caused by: org.apache.velocity.tools.config.ConfigurationException: Couldn't > instantiate instance of tool for: Unusable Tool 'forwardBuilder' => [My Tool > Class] with 1 properties [key -auto-> forwardBuilder; > ](java.lang.InstantiationException: com.chadis.tools.struts.ForwardBuilder) > at > org.apache.velocity.tools.config.ToolConfiguration.validate(ToolConfiguration.java:356) > at > org.apache.velocity.tools.config.CompoundConfiguration.validate(CompoundConfiguration.java:115) > at > org.apache.velocity.tools.config.ToolboxConfiguration.validate(ToolboxConfiguration.java:108) > at > org.apache.velocity.tools.config.CompoundConfiguration.validate(CompoundConfiguration.java:115) > at > org.apache.velocity.tools.config.FactoryConfiguration.validate(FactoryConfiguration.java:232) > at > org.apache.velocity.tools.ToolboxFactory.configure(ToolboxFactory.java:80) > at > org.apache.velocity.tools.ToolManager.configure(ToolManager.java:90) > at > org.apache.velocity.tools.view.ViewToolManager.configure(ViewToolManager.java:213) > at > org.apache.velocity.tools.view.VelocityView.configure(VelocityView.java:508) > at > org.apache.velocity.tools.view.VelocityView.init(VelocityView.java:313) > at > org.apache.velocity.tools.view.VelocityView.<init>(VelocityView.java:213) > at > org.apache.velocity.tools.view.ServletUtils.createView(ServletUtils.java:156) > at > org.apache.velocity.tools.view.ServletUtils.getVelocityView(ServletUtils.java:142) > at > org.apache.velocity.tools.view.ServletUtils.getVelocityView(ServletUtils.java:104) > at > org.apache.velocity.tools.view.VelocityViewServlet.getVelocityView(VelocityViewServlet.java:155) > at > org.apache.velocity.tools.view.VelocityViewServlet.init(VelocityViewServlet.java:122) > at > org.apache.velocity.tools.view.VelocityLayoutServlet.init(VelocityLayoutServlet.java:133) > at > org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1266) > at [...] > Eventually, the thread somehow recovers but not before generating about 800 > of the above "Caused by" stack elements. I was actually expecting a > StackOverflowError at some point, but it never came. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@velocity.apache.org For additional commands, e-mail: dev-h...@velocity.apache.org