[JIRA] [core] (JENKINS-24309) UberClassLoader does not cache negative results

[jgl...@cloudbees.com (JIRA)]

Jesse Glick created JENKINS-24309 UberClassLoader does not cache negative results Issue Type: Bug Assignee: Jesse Glick Components: core Created: 18/Aug/14 6:01 PM Description: Running GroovyShell.parse, common as part of form validation for plugins offering Groovy scripting, is unnecessarily slow: java.lang.Thread.State: RUNNABLE at java.lang.Throwable.fillInStackTrace(Native Method) - locked <0x000000078fc42f48> (a java.lang.ClassNotFoundException) at java.lang.Throwable.<init>(Throwable.java:218) at java.lang.Exception.<init>(Exception.java:59) at java.lang.ClassNotFoundException.<init>(ClassNotFoundException.java:65) at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1375) at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1325) at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44) at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:86) - locked <...> (a hudson.ClassicPluginStrategy$AntClassLoader2) at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1042) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) - locked <...> (a hudson.PluginManager$UberClassLoader) at java.lang.ClassLoader.loadClass(ClassLoader.java:295) - locked <...> (a groovy.lang.GroovyClassLoader) at groovy.lang.GroovyClassLoader.loadClass(GroovyClassLoader.java:692) at groovy.lang.GroovyClassLoader.loadClass(GroovyClassLoader.java:560) at org.codehaus.groovy.control.ClassNodeResolver.tryAsLoaderClassOrScript(ClassNodeResolver.java:183) at ... at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:281) - locked <...> (a java.util.HashMap) at groovy.lang.GroovyShell.parseClass(GroovyShell.java:731) at groovy.lang.GroovyShell.parse(GroovyShell.java:743) at groovy.lang.GroovyShell.parse(GroovyShell.java:770) Should cache negative class loads, since these are common when compiling Groovy at least. Project: Jenkins Labels: performance classloader Priority: Major Reporter: Jesse Glick

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