breakage in schema compiler (when importing another schema)

[David Waite <ma...@akuma.org>]

It is difficult to figure out what purpose of the code in XsbReader 
provides for. However, the issue appears to be that the writeHandle 
function is being called with a SchemaComponent (SchemaType) which is a 
document type.  This document type is provided by a separately compiled 
jar on the classpath.

The line
SchemaField sf = type.getContainerField();
sets sf to null. which throws a NullPointerException on the next 
statement.

My Stack Trace is below. I have been using the Ant task

Thread [main] (Suspended (breakpoint at line 1507 in 
SchemaTypeSystemImpl$XsbReader))
	SchemaTypeSystemImpl$XsbReader.writeHandle(SchemaComponent) line: 1507
	SchemaTypeSystemImpl$XsbReader.writeType(SchemaType) line: 1534
	SchemaTypeSystemImpl$XsbReader.writeTypeData(SchemaType) line: 2022
	SchemaTypeSystemImpl.saveType(SchemaType) line: 1004
	SchemaTypeSystemImpl.saveTypesRecursively(SchemaType[]) line: 901
	SchemaTypeSystemImpl.saveToDirectory(File) line: 879
	SchemaCodeGenerator.compileTypeSystem(SchemaTypeSystem, File, File[], 
Map, File[], File, File, boolean, boolean, XmlErrorWatcher, String, 
boolean, List) line: 45
	SchemaCompiler.compile(SchemaCompiler$Parameters) line: 798
	XMLBean.execute() line: 221
	UnknownElement.execute() line: 306
	UnknownElement(Task).perform() line: 401
	Target.execute() line: 338
	Target.performTasks() line: 365
	Project.executeTarget(String) line: 1237
	Project.executeTargets(Vector) line: 1094
	Main.runBuild(ClassLoader) line: 669
	Main.startAnt(String[], Properties, ClassLoader) line: 220
	Launcher.run(String[]) line: 215
	Launcher.main(String[]) line: 90

-David Waite