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BUG with XMLproject on win NT/JDK1.1.x : Referencing an external entity

• From: Sebastien Sahuc <ssahuc@i...>
• To: "'xml-dev@i...'" <xml-dev@i...>
• Date: Tue, 3 Aug 1999 15:46:53 +0200

subject: BUG with XMLproject on win NT/JDK1.1.x : Referencing an
external entity doesn't work if working with URL.

Hello,

I've just submitted the bug to Sun Bug parade. Can someone have a look
and check if it's one ? Reproducing the bug is really easy and is
explained above.

Thank


BUG DESCRIPTION
----------------------------------------------------------
Only on Windows NT and JDK1.1.x (no bug on Windows NT/JDK1.2.x or
linux/jdk1.1.7 and Solaris/jdk1.1.6).

If a Xml document references an external entity in its DTD, and if
this Xml document is loaded into memory through an URL, then the
parser won't resolve the correct URI to locate the external file that
contains the external entity.

REPRODUCING THE BUG
-----------------------------------------------------------
To reproduce the bug, it's easy. All you need is :
- Windows NT
- any Jdk 1.1.x (for instance 1.1.8 from sun, installed at the
location d:\java\jdk1.1.8)
- XML projects TR2 (installed at the location d:\java\xml-tr2 in our
case)

Go in the 'simple' example of XML project (path :
d:\java\xml-tr2\examples\simple).
In the file 'main.java', replace the line 55 
    input = Resolver.createInputSource (new File (argv [0]));
with the following :
    input = Resolver.createInputSource (new java.net.URL(argv[0]),
false);

Add the file 'doc.xml' in the 'simple' directory with the following
lines :
    <?xml version="1.0"?>
    <!DOCTYPE root SYSTEM "entity.dtd">
    <root>
        &entity_tag;
    </root>

Add the file 'entity.dtd' in the 'simple' directory with the following
line :
    <!ENTITY entity_tag "<example_tag><example_tag2/></example_tag>">

Add the file build2.bat in the 'simple' directory with the following
content :
    set JAVA_HOME=d:\java\jdk1.1.8
    set XML_DOC=file:/d:\java\xml-tr2\examples\simple\doc.xml
    %JAVA_HOME%\bin\javac -classpath ..\..\xml.jar;%  JAVA_HOME%
\lib\classes.zip main.java
    %JAVA_HOME%\bin\java -classpath .;..\..\xml.jar;%JAVA_HOME%
\lib\classes.zip main %XML_DOC%

Then launch 'build2.bat', you'll suppose to get the output :
java.io.FileNotFoundException: \entity.dtd
        at java.io.FileInputStream.<init>(FileInputStream.java:56)
        at
sun.net.www.protocol.file.FileURLConnection.connect(Compiled Code)
        at
sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLCon
nection.java:162)
        at
com.sun.xml.parser.Resolver.resolveEntity(Resolver.java:340)
        at
com.sun.xml.parser.ExternalEntity.getInputSource(ExternalEntity.java:
46)
        at com.sun.xml.parser.Parser.pushReader(Parser.java:2748)
        at com.sun.xml.parser.Parser.externalParameterEntity(Compiled
Code)
        at com.sun.xml.parser.Parser.maybeDoctypeDecl(Compiled Code)
        at com.sun.xml.parser.Parser.parseInternal(Compiled Code)
        at com.sun.xml.parser.Parser.parse(Parser.java:283)
        at
com.sun.xml.tree.XmlDocument.createXmlDocument(XmlDocument.java:225)
        at main.main(main.java:60)


OTHER ENVIRONMENTS
----------------------------------------------------
In Windows NT and JDK1.2.x, the simple works fine and the output is :
    <?xml version="1.0" encoding="UTF-8"?>

    <!DOCTYPE root SYSTEM 'file:/d:/java/xml-
tr2/examples/simple/entity.dtd'>

    <root> 
       <example_tag>
         <example_tag2 />
       </example_tag> 
    </root>

In Solaris with wathever JDK (1.1.x or 1.2.x) everything is fine.
In Linux, same as solaris.		

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