[
https://issues.apache.org/jira/browse/VELOCITY-115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Henning Schmiedehausen closed VELOCITY-115.
-------------------------------------------
> Methods cannot be invoked from vm
> ---------------------------------
>
> Key: VELOCITY-115
> URL: https://issues.apache.org/jira/browse/VELOCITY-115
> Project: Velocity
> Issue Type: Bug
> Components: Engine
> Affects Versions: 1.3-rc1
> Environment: Operating System: All
> Platform: PC
> Reporter: Alexander Veit
> Assigned To: Velocity-Dev List
> Priority: Critical
> Fix For: 1.4
>
>
> Method findMethod(String name, Object[] params) of
> org.apache.velocity.util.introspection.ClassMap
> fails under some circumstances.
> -->
> Twonk twonk = calcDistance( params, parameterTypes ) is null
> -->
> private Twonk MethodMap.calcDistance( Object[] set, Class[] base )
> {
> //...
> if ( !base[i].isAssignableFrom( set[i].getClass() ))
> return null; // place breakpoint here
> //...
> }
> --- IOrder.java ---
> package velocitybug;
> public interface IOrder
> {
> public void say();
> }
> -------------------
> --- TheOrder.java ---
> package velocitybug;
> public class TheOrder implements IOrder
> {
> public TheOrder()
> {
> }
> public void say()
> {
> System.out.println("Hello");
> }
> }
> ---------------------
> --- TheCollection.java ---
> package velocitybug;
> public class TheCollection
> {
> public TheCollection()
> {
> }
>
> public void aWorks(String s, int i)
> {
> System.out.println("a works");
> }
>
> public void bWorks(IOrder o, String s)
> {
> System.out.println("b works");
> }
>
> public void doesNotWork(IOrder o, int i)
> {
> System.out.println("does not work");
> }
> }
> ---------------------------
> --- invokeBug ---
> public void invokeBug()
> {
> VelocityContext l_context;
> Template l_template;
> PrintWriter l_writer;
> try
> {
> Velocity.init("velocity.properties");
> l_context = new VelocityContext();
> l_context.internalPut("TheOrder", new TheOrder());
> l_context.internalPut("TheCollection", new TheCollection
> ());
> l_template = Velocity.getTemplate("VelocityBug.vm");
> l_writer = new PrintWriter(System.out);
> l_template.merge(l_context, l_writer);
> l_writer.flush();
> l_writer.close();
> }
> catch (Exception l_e)
> {
> l_e.printStackTrace();
> }
> }
> -------------------
> --- VelocityBug.vm ---
> $TheCollection.aWorks("Hello", 4711)
> $TheCollection.bWorks($TheOrder, "World")
> $TheCollection.doesNotWork($TheOrder, 4712)
> ----------------------
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