SchemaGen does not use the package name in java file to create targetNamespace

OPERATING SYSTEM(S):
ALL

FULL JDK VERSION(S):
java version "1.6.0_05"
Java(TM) SE Runtime Environment (build 1.6.0_05-b13)
Java HotSpot(TM) Client VM (build 10.0-b19, mixed mode)

DESCRIPTION from Submitter:
1. Unzip the schema1.zip (see attachment)
2. Compile the java files: javac -d class -cp class PurchaseOrder.java
3. schemagen -d class -cp class jaxws.sample.LaptopPurchaseOrder

Result seen:
The created xsd file doesn't have a "targetnamespace". While the expected result is that the targetnamespace should have the value specified by the XmlSchema.namespace for the package. The schema1.xsd is an example of the the result.