[DrJava] [ drjava-Bugs-2985180 ] Can't Invoke main Method of Class Declared in Interactions

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Bugs item #2985180, was opened at 2010-04-10 16:44
Message generated for change (Tracker Item Submitted) made by mgricken
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Category: Interactions
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Mathias Ricken (mgricken)
Assigned to: Nobody/Anonymous (nobody)
Summary: Can't Invoke main Method of Class Declared in Interactions

Initial Comment:
A main method in a class declared in the Interactions Pane cannot be invoked using the "java Foo" syntax:
It can be invoked using a static method call.

> class Foo { public static void main(String[] args) { } }
> java Foo
java.lang.NoSuchMethodError: main
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
	at edu.rice.cs.dynamicjava.symbol.JavaClass$JavaConstructor.evaluate(JavaClass.java:289)
	at edu.rice.cs.dynamicjava.interpreter.ExpressionEvaluator.handleConstructor(ExpressionEvaluator.java:128)
	at edu.rice.cs.dynamicjava.interpreter.ExpressionEvaluator.visit(ExpressionEvaluator.java:98)
	at koala.dynamicjava.tree.SimpleAllocation.acceptVisitor(SimpleAllocation.java:137)
	at edu.rice.cs.dynamicjava.interpreter.ExpressionEvaluator.value(ExpressionEvaluator.java:38)
> public class Foo2 { public static void main(String[] args) { } }
> java Foo2
java.lang.NoSuchMethodError: main
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
	at edu.rice.cs.dynamicjava.symbol.JavaClass$JavaConstructor.evaluate(JavaClass.java:289)
	at edu.rice.cs.dynamicjava.interpreter.ExpressionEvaluator.handleConstructor(ExpressionEvaluator.java:128)
	at edu.rice.cs.dynamicjava.interpreter.ExpressionEvaluator.visit(ExpressionEvaluator.java:98)
	at koala.dynamicjava.tree.SimpleAllocation.acceptVisitor(SimpleAllocation.java:137)
	at edu.rice.cs.dynamicjava.interpreter.ExpressionEvaluator.value(ExpressionEvaluator.java:38)
> public static class Foo3 { public static void main(String[] args) { } }
Modifier static is not allowed here
> Foo.class.getDeclaredMethods()
{ public static void Foo.main(edu.rice.cs.dynamicjava.interpreter.RuntimeBindings,java.lang.String[]) }
> Foo2.class.getDeclaredMethods()
{ public static void Foo2.main(edu.rice.cs.dynamicjava.interpreter.RuntimeBindings,java.lang.String[]) }
> Foo.main(new String[])
> 


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