Problems generating the client for the ClickandBuy API

Hi,

I have problems to generate the client for the ClickandBuy API using 
xmlbeans. The WSDL is located online under the address: 
https://api.clickandbuy.com/webservices/pay_1_1_0.wsdl.
The command that I use is as follows:
$AXIS2_HOME/bin/wsdl2java.sh -o clickandbuy-src -uri 
https://api.clickandbuy.com/webservices/pay_1_1_0.wsdl -p 
com.clickandbuy.api -d xmlbeans -s

The output is as follows:
Using AXIS2_HOME: /data/development/bin/java/axis2/latest
  Using JAVA_HOME:  /etc/java-config-2/current-system-vm
Retrieving document at 
'https://api.clickandbuy.com/webservices/pay_1_1_0.wsdl'.
Retrieving schema at 
'https://api.clickandbuy.com/webservices/pay_1_1_0.xsd', relative to 
'https://api.clickandbuy.com/webservices/pay_1_1_0.wsdl'.
Retrieving schema at 
'https://api.clickandbuy.com/webservices/PayTypes_1_1_0.xsd', relative 
to 'https://api.clickandbuy.com/webservices/pay_1_1_0.xsd'.
Retrieving schema at 
'https://api.clickandbuy.com/webservices/SOAPTypes_1_1_0.xsd', relative 
to 'https://api.clickandbuy.com/webservices/PayTypes_1_1_0.xsd'.
[INFO] Resolving schema with publicId 
[http://api.clickandbuy.com/webservices/pay_1_1_0/] and systemId 
[https:/api.clickandbuy.com/webservices/pay_1_1_0.xsd]
[INFO] Resolving schema with publicId [null] and systemId 
[https:/api.clickandbuy.com/webservices/PayTypes_1_1_0.xsd]
Exception in thread "main" 
org.apache.axis2.wsdl.codegen.CodeGenerationException: 
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at 
org.apache.axis2.wsdl.codegen.CodeGenerationEngine.generate(CodeGenerationEngine.java:293)
	at org.apache.axis2.wsdl.WSDL2Code.main(WSDL2Code.java:50)
	at org.apache.axis2.wsdl.WSDL2Java.main(WSDL2Java.java:24)
Caused by: java.lang.RuntimeException: 
java.lang.reflect.InvocationTargetException
	at 
org.apache.axis2.wsdl.codegen.extension.XMLBeansExtension.engage(XMLBeansExtension.java:126)
	at 
org.apache.axis2.wsdl.codegen.CodeGenerationEngine.generate(CodeGenerationEngine.java:246)
	... 2 more
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at 
org.apache.axis2.wsdl.codegen.extension.XMLBeansExtension.engage(XMLBeansExtension.java:115)
	... 3 more
Caused by: java.lang.RuntimeException: 
org.apache.xmlbeans.XmlException: 
https://api.clickandbuy.com/webservices/pay_1_1_0.xsd:2:1: error: 
Problem parsing referenced XML resource - 
https://api.clickandbuy.com/webservices/PayTypes_1_1_0.xsd:1:1: error: 
Unexpected end of file after null
	at 
org.apache.axis2.xmlbeans.CodeGenerationUtility.processSchemas(CodeGenerationUtility.java:325)
	... 8 more
Caused by: org.apache.xmlbeans.XmlException: 
https://api.clickandbuy.com/webservices/pay_1_1_0.xsd:2:1: error: 
Problem parsing referenced XML resource - 
https://api.clickandbuy.com/webservices/PayTypes_1_1_0.xsd:1:1: error: 
Unexpected end of file after null
	at 
org.apache.xmlbeans.impl.schema.SchemaTypeSystemCompiler.compile(SchemaTypeSystemCompiler.java:226)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.xmlbeans.XmlBeans.compileXmlBeans(XmlBeans.java:667)
	at 
org.apache.axis2.xmlbeans.CodeGenerationUtility.processSchemas(CodeGenerationUtility.java:189)
	... 8 more

If I download the WSDL and the XSD files then I can create the 
client(after fixing an other error; see below). It seems that Axis 
appends arbitrary data to the XSD files during download!? Can this be 
the case?

The other problem is that Axis stumbled upon a invalid regular 
expression which I think isn't invalid.
The regular expression 'GMT[+-][012]?\d(:[0-5]\d)?' is malformed: '-' 
is an invalid character range. Write '\-'.

I think the hyphen needn't be escaped in a character set. If you look 
at the http://www.regular-expressions.info/charclass.html under the 
point "Metacharacters Inside Character Classes" there exists an example 
for this case. Both [-x] and [x-] match an x or a hyphen.

I have tested this with 1.6.2 and with trunk.

Best regards,
Christian