[rules-users] Mvel compilation error
Hi All, We are intermittently getting mvel compilation errors with the following: Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39 ) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl .java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.mvel.optimizers.impl.refl.MethodAccessor.getValue(MethodAccessor.java:61 ) ... 148 more The rules compile ok and the application will run normally (rules processing successfully) for a few days then this error will occur. Tried to replicate but once the application is restarted the last action before the failure is repeated and always processes successfully. Any help would be appreciated. Regards JS ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Mvel compilation error
Hey John, I know it is difficult, but we need some way to reproduce... can you isolate a few rules and run them in a loop trying to force the exception? 2008/7/17 John Squire <[EMAIL PROTECTED]>: > Hi All, > > We are intermittently getting mvel compilation errors with the following: > > Caused by: java.lang.IllegalArgumentException: object is not an instance of > declaring class > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:585) > at > org.mvel.optimizers.impl.refl.MethodAccessor.getValue(MethodAccessor.java:61) > ... 148 more > > The rules compile ok and the application will run normally (rules > processing successfully) for a few days then this error will occur. Tried to > replicate but once the application is restarted the last action before the > failure is repeated and always processes successfully. > > Any help would be appreciated. > > Regards > JS > > ___ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > -- Edson Tirelli JBoss Drools Core Development JBoss, a division of Red Hat @ www.jboss.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Mvel compilation error
This is not a compilation error, it's a runtime error. It means you're passing a wrong type. For instance, you may do: f.m(x) where method m is declared to take a type T, but you pass an object x of type S which is not a subtype of T. To debug this, examine the arguments in the section of code. Also, insert statements such as: if (!(x instanceof T)) System.err.println() before the call to f or use asserts. - Godmar On Fri, Jul 18, 2008 at 10:57 AM, Edson Tirelli <[EMAIL PROTECTED]> wrote: > >Hey John, I know it is difficult, but we need some way to reproduce... > can you isolate a few rules and run them in a loop trying to force the > exception? > > > 2008/7/17 John Squire <[EMAIL PROTECTED]>: >> >> Hi All, >> >> We are intermittently getting mvel compilation errors with the following: >> >> Caused by: java.lang.IllegalArgumentException: object is not an instance >> of declaring class >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >> at java.lang.reflect.Method.invoke(Method.java:585) >> at >> org.mvel.optimizers.impl.refl.MethodAccessor.getValue(MethodAccessor.java:61) >> ... 148 more >> >> The rules compile ok and the application will run normally (rules >> processing successfully) for a few days then this error will occur. Tried to >> replicate but once the application is restarted the last action before the >> failure is repeated and always processes successfully. >> >> Any help would be appreciated. >> >> Regards >> JS >> ___ >> rules-users mailing list >> rules-users@lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> > > > > -- > Edson Tirelli > JBoss Drools Core Development > JBoss, a division of Red Hat @ www.jboss.com > ___ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
