[ sisc-Bugs-1434594 ] deserialisation does not respect current-class-path

Bugs item #1434594, was opened at 2006-02-19 13:51
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 7
Submitted By: Matthias Radestock (mradestock)
Assigned to: Nobody/Anonymous (nobody)
Summary: deserialisation does not respect current-class-path

Initial Comment:
Step #1: compile the following Java program and place the resulting class file in a directory where the standard SISC class path *cannot* see it:

import java.io.IOException;
import sisc.io.ValueWriter;
import sisc.data.Value;

public class Foo extends Value {

    public Foo() {}

    public void display(ValueWriter w) throws IOException {
        w.append("#!Foo");
    }

}

Step #2: Run the following SISC program

(define tmp-path "/dir-of-Foo-class/")
(define ser-file (string-append tmp-path "foo.ser"))

(import serial-io)
(define (sisc-ser-deser x)
  (call-with-serial-output-file ser-file
    (lambda (port) (serialize x port)))
  (call-with-serial-input-file ser-file deserialize))

(current-class-path `(,tmp-path))

(import s2j)
(import* type-system make-type)
(define x-java-class (java-class '|Foo|))
(define x-java-value (java-new x-java-class))
(define x-type (make-type '|Foo|))
(define x-value (java-unwrap x-java-value))
(sisc-ser-deser x-java-class)
(sisc-ser-deser x-java-value)
(sisc-ser-deser x-type)
(sisc-ser-deser x-value)


The four serialisations fail with the following errors:

#;> Error in deserialize: error reading from port '#<native-input-port>': java.lang.ClassNotFoundException: Foo 
?:?:?: <from call to @serial-io-native::deserialize>
?:?:?: <indeterminate call>
#;> Error in deserialize: <java.lang.RuntimeException>: cannot deserialize java object
?:?:?: <from call to @serial-io-native::deserialize>
?:?:?: <indeterminate call>
#;> Error in deserialize: error reading from port '#<native-input-port>': java.lang.ClassNotFoundException: Foo 
?:?:?: <from call to @serial-io-native::deserialize>
?:?:?: <indeterminate call>
#;> Error in deserialize: error reading from port '#<native-input-port>': java.lang.ClassNotFoundException: Foo 
?:?:?: <from call to @serial-io-native::deserialize>
?:?:?: <indeterminate call>
#;> 


NB: These four cases are actually all handled by different sections of code, though the cause for the failure is always the same, i.e. a class name gets resolved in a class loader that does not contain the paths in |current-class-path|.

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