Not sure what category to select. Please reassign as appropriate. Netbeans installer does not start. When run in debug mode:
java -Dis.debug=1 -jar NetBeans-dev-20040927.jar

It gives:
line/col: 4/-1
com.jxml.quick.QPE: java.lang.NullPointerException
        at com.jxml.quick.QContext.throwPE(Unknown Source)
        at com.jxml.quick.tf.QClassWrapper.getPropertyDescriptors(Unknown Source)
        at com.jxml.quick.access.QPropertyAccess.setPD(Unknown Source)
        at com.jxml.quick.access.QPropertyAccess.writeable(Unknown Source)
        at com.jxml.quick.engine.QCElementFactory$QCElement$CEState.match(Unknown Source)
        at com.jxml.quick.engine.QCMSeqFactory$QCMSeq$SeqState.match(Unknown Source)
        at com.jxml.quick.engine.QElementFactory$QElement$EState.processElement(Unknown Source)
        at com.jxml.quick.engine.QCMFactory$QCM.startElement(Unknown Source)
        at com.jxml.quick.engine.QContextImpl.startElement(Unknown Source)
        at com.jxml.quick.QConvert.startElement(Unknown Source)
        at com.sun.xml.parser.Parser.maybeElement(Parser.java:1391)
        at com.sun.xml.parser.Parser.content(Parser.java:1499)
        at com.sun.xml.parser.Parser.maybeElement(Parser.java:1400)
        at com.sun.xml.parser.Parser.content(Parser.java:1499)
        at com.sun.xml.parser.Parser.maybeElement(Parser.java:1400)
        at com.sun.xml.parser.Parser.parseInternal(Parser.java:492)
        at com.sun.xml.parser.Parser.parse(Parser.java:284)
        at com.jxml.quick.Quick.parse(Unknown Source)
        at com.installshield.qjml.QJML.read(Unknown Source)
        at com.installshield.qjml.QJML.read(Unknown Source)
        at com.installshield.wizard.WizardLoader.load(Unknown Source)
        at com.installshield.wizard.Wizard.loadWizard(Unknown Source)
        at com.installshield.wizard.Wizard.main(Unknown Source)
        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:324)
        at run.main(Unknown Source)
QJMLException: (error code = 3002; message="java.lang.NullPointerException")
        at com.installshield.qjml.QJML.read(Unknown Source)
        at com.installshield.qjml.QJML.read(Unknown Source)
        at com.installshield.wizard.WizardLoader.load(Unknown Source)
        at com.installshield.wizard.Wizard.loadWizard(Unknown Source)
        at com.installshield.wizard.Wizard.main(Unknown Source)
        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:324)
        at run.main(Unknown Source)
The wizard cannot continue because of the following error: could not load wizard tree specified in /wizard.inf (106)

At first it looks like Install Shield problem but the same installer runs without any problem on JDK 1.4.2_05 or JDK 1.5.0 build 64. The same problem happens on Solaris Sparc 9 and Solaris 9 X86, Win XP and Linux Fedora Core 2. It also happens with latest build of JDK 1.4.2_07. So it looks like some regression. As we do not have source of Install Shield code we cannot provide more details. You might need to contact Install Shield support.
###@###.### 2004-09-29

I attached simple test installer to reproduce problem. Unzip it and run as:
java -Dis.debug=1 -jar TestInstaller.jar
###@###.### 2004-09-29