Re: [xmlvm-users] bug: jdom complains of illegal xml characters

[Arno P. <ar...@pu...>]

the class file you attached to your bug report contained a string with 
embedded binary data. That binary data was not properly escaped when 
converted to XMLVM. I just submitted a patch that should fix this problem.

Two comments:

- the class file you try to convert is HUGE. You need to run XMLVM with
   java -Xms32m -Xmx512m -jar dist/xmlvm.jar
   otherwise you will run out of heap memory.
- you mentioned that this class file was generated from a C program.
   If you plan to use the Objective-C backend you might consider to use
   the original C file instead of going through XMLVM. After all,
   Objective-C is a strict superset of C.

Arno


Steve Huntley wrote:
> I successfully installed and compiled xmlvm (checked out of svn today) 
> on an Ubuntu Hardy machine with Sun Java 1.6 installed. I tried a simple 
> conversion using a single class file that runs in the JVM without error. 
> I used the command "xmlvm --in=Jim.class" and I got an error: 'Exception 
> in thread "main" java.lang.reflect.InvocationTargetException'. Full 
> output is reproduced below. I opened a bug report and attached the class 
> file to it.
> 
> Any help in getting this class file converted would be appreciated.
> 
> $ xmlvm --in=../jim/Jim.class
> [08/29/09 01:51:58.821] DEBUG: Instantiated: 
> org.xmlvm.proc.in.ClassInputProcess
> [08/29/09 01:51:58.822] DEBUG: Instantiated: 
> org.xmlvm.proc.in.ClassInputProcess for "../jim/Jim.class"
> [08/29/09 01:51:58.822] DEBUG: Instantiated: 
> org.xmlvm.proc.out.XmlvmOutputProcess
> [08/29/09 01:51:58.822] DEBUG: Adding preprocess 
> org.xmlvm.proc.in.ClassInputProcess to process 
> org.xmlvm.proc.out.XmlvmOutputProcess
> [08/29/09 01:51:58.822] DEBUG: ClassInputProcess.process(): 
> ../jim/Jim.class
> Exception in thread "main" 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 com.simontuffs.onejar.Boot.run(Boot.java:306)
> at com.simontuffs.onejar.Boot.main(Boot.java:159)
> Caused by: org.jdom.IllegalDataException: The data "x 
" is not 
> legal for a JDOM attribute: 0x0 is not a legal XML character.
> at org.jdom.Attribute.setValue(Attribute.java:486)
> at org.jdom.Attribute.<init>(Attribute.java:229)
> at org.jdom.Attribute.<init>(Attribute.java:252)
> at org.jdom.Element.setAttribute(Element.java:1109)
> at 
> org.xmlvm.proc.in.ClassInputProcess$BcelVisitor.addConstant(ClassInputProcess.java:317) 
> 
> at 
> org.xmlvm.proc.in.ClassInputProcess$BcelVisitor.emitCPInstruction(ClassInputProcess.java:612) 
> 
> at 
> org.xmlvm.proc.in.ClassInputProcess$BcelVisitor.visitCode(ClassInputProcess.java:485) 
> 
> at org.apache.bcel.classfile.Code.accept(Code.java:132)
> at 
> org.apache.bcel.classfile.DescendingVisitor.visitCode(DescendingVisitor.java:174) 
> 
> at org.apache.bcel.classfile.Code.accept(Code.java:132)
> at 
> org.apache.bcel.classfile.DescendingVisitor.visitMethod(DescendingVisitor.java:159) 
> 
> at org.apache.bcel.classfile.Method.accept(Method.java:102)
> at 
> org.apache.bcel.classfile.DescendingVisitor.visitJavaClass(DescendingVisitor.java:103) 
> 
> at org.apache.bcel.classfile.JavaClass.accept(JavaClass.java:213)
> at 
> org.apache.bcel.classfile.DescendingVisitor.visit(DescendingVisitor.java:88) 
> 
> at org.xmlvm.proc.in.ClassInputProcess.process(ClassInputProcess.java:96)
> at org.xmlvm.proc.XmlvmProcess.preprocess(XmlvmProcess.java:172)
> at 
> org.xmlvm.proc.out.XmlvmOutputProcess.process(XmlvmOutputProcess.java:54)
> at org.xmlvm.proc.XmlvmProcessor.process(XmlvmProcessor.java:105)
> at org.xmlvm.proc.NewMain.main(NewMain.java:55)
> ... 6 more
> 
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