[jdom-interest] JDK1.1 Compatibility - B4

[Joseph Bowbeer]

Fyi. I just migrated the B4 sources to JDK1.1. Here are some
specifics.

Files modified: 11

    Attribute.java
    Document.java
    DocType.java
    Element.java
    Entity.java
    Namespace.java
    PartialList.java
    ProcessingInstruction.java

    input/DOMBuilder.java
    input/SAXBuilder.java

    output/XMLOutputter.java

Most modifications are similar to the following:

/*if[JAVA2]
import java.util.LinkedList;
import java.util.List;
/*else[JAVA2]*/
import com.sun.java.util.collections.LinkedList;
import com.sun.java.util.collections.List;
/*end[JAVA2]*/

However, there are currently three special cases that require more
work.

1. UnsupportedOperationException workaround

Import UnsupportedOperationException where needed; this exception
is imported by default from java.lang in Java2.

Document.java
Element.java

/*if[JAVA2]
/*else[JAVA2]*/
import
com.sun.java.util.collections.UnsupportedOperationException;
/*end[JAVA2]*/

2. File.toURL() workaround

Steal some code from Java2 and add it to SAXBuilder.

/*if[JAVA2]
            URL url = file.toURL();
/*else[JAVA2]*/
            URL url = toURL(file);
/*end[JAVA2]*/

/*if[JAVA2]
/*else[JAVA2]*/
    private static URL toURL(File file) throws
MalformedURLException {
        String path = file.getAbsolutePath();
        if (File.separatorChar != '/') {
            path = path.replace(File.separatorChar, '/');
        }
        if (!path.startsWith("/")) {
            path = "/" + path;
        }
        if (!path.endsWith("/") && file.isDirectory()) {
            path = path + "/";
        }
        return new URL("file", "", path);
    }
/*end[JAVA2]*/

3. Float.parseFloat() and Double.parseDouble() workaround

Attribute and Element need code like the following in a eight
places (four each).

/*if[JAVA2]
            return Double.parseDouble(value);
/*else[JAVA2]*/
            return Double.valueOf(value).doubleValue();
/*end[JAVA2]*/

--
Joe Bowbeer

PS - The line termination in the B4 sources is strange. I haven't
investigated it, but the Sun Forte IDE (formerly NetBeans)
double-spaces everything and MS WordPad concatenates everything
onto one line. (MS Notepad does just fine, though - for once.)