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<?xml version="1.0" standalone="no"?>
<!DOCTYPE faqs SYSTEM "./dtd/faqs.dtd">
<faqs title="Building and Running FAQs">
<faq title="Swing version?">
<q>Which version of Swing is required?</q>
<a> <p>This release uses Swing 1.1 (JFC 1.1).
Swing is only used by the sample programs and is not
required by the parser itself.</p>
</a>
</faq>
<faq title="Recompling source files?">
<q>How do I recompile the source files?</q>
<a> <p>To build &javaparsername; on Windows, you need a copy of Cygnus's Cygwin.
See <jump href="http://sourceware.cygnus.com/cygwin">http://sourceware.cygnus.com/cygwin</jump>.
Once Cygwin is installed, you need to set two environment variables. Edit the batch file
BuildAll.bat to set these variables. Execute BuildAll.bat, and then
set your classpath to point to the src and samples directories in the
&javaparsername; distribution. You can then go to the top of the
&javaparsername; tree and type 'make'.
</p>
<p>
To build &javaparsername; Java on UNIX, you need to set an environment
variable. Edit the shell script BuildAll to set this variables.
Execute BuildAll, and then set your classpath to point to the src
and samples directories in the &javaparsername; distribution. You can then
go to the top of the &javaparsername; tree and type 'make'.
</p>
</a>
</faq>
<faq title="Regenerating API documention?">
<q>How do I regenerate the api documentation?</q>
<a> <p>To regenerate the api documentation, you need to set up
your environment to build &javaparsername;. Instead of typing 'make', you
type 'make apidocs'.
</p>
</a>
</faq>
<!-- TBD
<faq title="Packaging?">
<q>How do I package the parser?</q>
<a> <p>blah
</p>
</a>
</faq>
-->
<faq title="How do I use Visual Age?">
<q>How do I import &javaparsername; into Visual Age for Java</q>
<a>
<ul>
<li>Why does VisualAge for Java 2.0 report problems when I import the &javaparsername; parser?
<br/>The current version of the &javaparsername; parser uses Swing 1.1,
while VisualAge for Java 2.0 comes with Swing 1.0.2. The free update for the
Professional version of VisualAge for Java 2.0 installs Swing 1.0.3.
The most important difference between Swing 1.0.2 - 1.0.3 and 1.1 is
the Java package was changed from com.sun.java.swing.* to javax.swing.*.
<br/>To fix the errors, you must download the Java Foundation Classes 1.1
with Swing 1.1 from Sun's Java home page and import the &quot;swingall.jar&quot;
file into VisualAge for Java 2.0. The Swing 1.1 package can be found at
the following URL:
<br/><jump href="http://java.sun.com/products/jfc/index.html">http://java.sun.com/products/jfc/index.html</jump>
<br/>Refer to the VisualAge for Java 2.0 documentation for information about
how to import a JAR file into the repository and add that code to your workspace.
</li>
<li>Are there any other tips for importing the &javaparsername; parser into VisualAge
for Java 2.0?
<br/>The most useful tip applies to <em>any</em> updated code that you import
into the VisualAge for Java 2.0 product. Before updating code, do the following:
<br/>1. version the old code
<br/>2. delete it from your workspace
<br/>3. import the new code
<br/>Deleting code from your workspace does not actually delete the code
permanently -- the versioned code is moved to the repository where it can be
retrieved later. Be aware, though, that removing code from your
workspace will cause problems with all of the other classes that use that code.
VisualAge for Java 2.0 will flag them as errors but this situation is temporary.
When you import the new code, the errors found when deleting the old code will be fixed.
<br/>If you are unsure as to how to perform any of these steps, refer to the VisualAge
for Java 2.0 documentation.
</li>
</ul>
</a>
</faq>
<faq title="100% Pure Java compliant?">
<q>Is this &javaparsername; version 100% pure Java compliant?</q>
<a> <p>Running JavaPureCheck on the Xerces-J parser code indicated 339
pure Java classes, 9 warnings, and 0 errors. The nine warnings are
enumerated below with explanations. To see the entire report, click
<link idref="jpc">here</link>. </p>
<p>There are many common cases where JavaPureCheck issues warnings
even though the code is pure Java. These are the most common reasons:</p>
<ol>
<li>Warning: method reference:
<code>java.lang.Class.forName(java.lang.String)</code>
<br/>This warning is issued in the following two cases:</li>
<ol>
<li>Program code calls the <code>Class.forName(String)</code> method to
dynamically load a class file. In this situation, the
specified class may contain impure Java code. In the
cases where this method is called directly in the parser
code, an explanation is provided detailing why this
warning can be ignored.</li>
<li>Program code makes direct reference to an object&apos;s
class. For example: <code>Class stringClass = String.class;</code>.
In this situation the Java compiler converts
<code>String.class</code> to the method call
<code>Class.forName(&quot;java.lang.String&quot;)</code>.
As long as the object whose class is being referenced is
pure Java, the code making the reference remains pure.</li>
</ol>
<li>Warning: possible hard-coded path: ...
<br/>When a String literal contains a common path separator
character (e.g. &apos;/&apos; or &apos;\&apos;), JavaPureCheck assumes that
it is a hard-coded path and that the class may not
contain portable code. While a human tester can verify
that the string is not a path, JavaPureCheck must be
conservative and issue a warning.</li>
</ol>
<p>Explanations:</p>
<ul>
<li>Class: org.xml.sax.helpers.ParserFactory</li>
<ul><li>Warning: method reference: java.lang.Class.forName(java.lang.String)</li></ul>
<ul><li>Explanation: The ParserFactory class is part of the standard SAX 1.0 distribution. The warning given that this class "may load impure class" is correct -- the ParserFactory class may load impure Java class files. However, the purpose of this utility class is to load parser classes by name and therefore cannot dynamically check the pureness of parser classes loaded in this fashion. Since the Xerces-J parser does not use this method directly, it is not a problem that concerns the Xerces-J parser. </li></ul>
<li>Class: org.apache.xml.serialize.SerializerFactory</li>
<ul><li>Warning: method reference: java.lang.Class.forName(java.lang.String)</li></ul>
<ul><li>Explanation: The SerializerFactory supports querying a system property to dynamically instantiate a serializer by class name. However, all of the serializer classes provided in this distribution are pure. The only way to load an impure serializer is if the user provided an impure serializer implementation.</li></ul>
<li>Class: org.apache.xml.serialize.OutputFormat</li>
<ul><li>Warning: possible hard-coded path: text/xml</li></ul>
<ul><li>Warning: possible hard-coded path: text/plain</li></ul>
<ul><li>Warning: possible hard-coded path: application/pdf</li></ul>
<ul><li>Warning: possible hard-coded path: text/html</li></ul>
<ul><li>Warning: possible hard-coded path: -//W3C//DTD XHTML 1.0 Strict//EN</li></ul>
<ul><li>Explanation: These strings are not filenames.</li></ul>
<li>Class: org.apache.xml.serialize.HTMLdtd</li>
<ul><li>Warning: method reference: java.lang.Class.forName(java.lang.String)</li></ul>
<ul><li>Explanation: Referencing class object that is pure Java.</li></ul>
<li>Class: org.apache.html.dom.HTMLDocumentImpl</li>
<ul><li>Warning: method reference: java.lang.Class.forName(java.lang.String)</li></ul>
<ul><li>Explanation: Referencing class object that is pure Java.</li></ul>
<li>Class: org.apache.xerces.readers.StringReader</li>
<ul><li>Warning: method reference: java.lang.Class.forName(java.lang.String)</li></ul>
<ul><li>Explanation: Referencing class object that is pure Java.</li></ul>
<li>Class: org.apache.xerces.parsers.DOMParser</li>
<ul><li>Warning: method reference: java.lang.Class.forName(java.lang.String)</li></ul>
<ul><li>Explanation: The DOMParser class allows the user to set the DOM implemenation to use, by name. However, the default DOM implementation is pure Java.</li></ul>
<ul><li>Explanation: Referencing class object that is pure Java.</li></ul>
<li>Class: org.apache.xerces.utils.CharDataChunk</li>
<ul><li>Warning: method reference: java.lang.Class.forName(java.lang.String)</li></ul>
<ul><li>Explanation: Referencing class object that is pure Java.</li></ul>
<li>Class: org.apache.xerces.utils.UTF8DataChunk</li>
<ul><li>Warning: method reference: java.lang.Class.forName(java.lang.String)</li></ul>
<ul><li>Explanation: Referencing class object that is pure Java.</li></ul>
</ul>
<p>The results file of the JavaPureCheck can be viewed by clicking <link idref="jpc">here</link>.</p>
<note>The samples were not checked with JavaPureCheck and are not
guaranteed to be pure Java. We reserve the right to write samples
in the future that are platform specific and therefore may not
pass as pure Java. The parser, however, will remain pure Java.</note>
</a>
</faq>
<faq title="Running on the Mac?">
<q>How do I get &javaparsername; to run on the Mac under MRJ?</q>
<a> <p><em>Prerequisites</em> (available from
<jump href="http://developer.apple.com/java/">http://developer.apple.com/java/</jump>):</p>
<ul>
<li>MRJ 2.1 (this is the most recent version of the JVM)</li>
<li>MRJ SDK 2.1 (this is the most recent version of the Java developer tools)</li>
</ul>
<p><em>Instructions </em>(other variations would work also):</p>
<ol>
<li>Download the .tar.gz file containing &javaparsername;.</li>
<li>Use Stuffit Expander(tm), Suntar, or some other Macintosh tool that
<br/>supports the .tar.gz format to expand the downloaded file.</li>
<li>JBindery, part of MRJ SDK 2.1, is used to create a double-clickable
Java application with the necessary configuration information built in.
It is analogous to writing a .bat or .sh script. </li>
<li><em>To run the dom.DOMWriter example:</em></li>
<ol>
<li>Double click on JBindery to start it up.</li>
<li>Click on the Classpath panel.</li>
<li>Click on the &quot;Add .zip File&quot; button and add both the
&quot;Xerces-J.jar&quot; and &quot;Xerces-JSamples.jar&quot; files.</li>
<li>Click on the Command panel.</li>
<li>Enter &quot;dom.DOMWriter&quot; as the Class name. Enter
&quot;data/personal.xml&quot; in the Optional parameters box.</li>
<li>Click on Save Settings button, pick a name such as &quot;Run <code>dom.DOMWriter</code>&quot;
for the file, and <em>be sure</em> that &quot;Save as Application&quot;
is selected (this is the default) and save the file.</li>
<li>Quit JBindery.</li>
<li>You can now double click on the file you created in step f to run the XJParse example.</li>
</ol>
</ol>
</a>
</faq>
<faq title="Visual Cafe exception error?">
<q>Why do I get ArrayIndexOutOfBoundsException in the Symantec Visual Cafe debugger?</q>
<a> <p>The Visual Cafe debugger is set to trap <code>ArrayIndexOutOfBoundsException</code> exceptions by
default. &javaparsername; uses <code>ArrayIndexOutOfBoundsException</code> internally to signal
exceptional, but not erroneous conditions. In order to run &javaparsername;2 inside
Visual Cafe's debugger, you need to turn off the trapping of these
exceptions.</p>
<p><em>To do this:</em></p>
<ol>
<li>Select the &quot;Options&quot; item in the "Project" menu.</li>
<li>Select the &quot;Debugger&quot; tab in the dialog which appears.</li>
<li>Select &quot;Exceptions&quot; from the popup menu.</li>
<li>Remove the check from the checkbox for <code>java.lang.ArrayIndexOutOfBoundsException</code>.</li>
</ol>
</a>
</faq>
</faqs>