Transport code generation failure for classes without default super constructor

[hauma]

Wrong transport code is generated, when jpc tries to retrofit a serializable class that does extend a non-serializable class, which has no default constructor.

When compiling the following example (with the -local option to prevent transport code generation for all classes (see: ticket:233)), jpc crashes with "errors in generated code":

class A {
    private int x;
    A(int x) {
        this.x = x;
    }
}

class B extends A implements java.io.Serializable {
    int y;
    B(int x, int y) {
        super(x);
        this.y = y;
    }
}

In such situation, no transport code should be generated at all, because it is impossible to generate transport code for B that marshals the complete state including the private instance variable x of superclass A.