[izpack-devel] Uninstaller bug

[Marius Nicolae]

Hi,

I was trying to build a command line installer/uninstaller using IzPack.

The install part can be automated with  an xml file. The uninstall
part can be resolved by adding the -c flag to the uninstaller.

The problem:
If I run the installer without a GUI (using an .xml file as a
parameter), the uninstaller encounters a null pointer exception.

I've attached a screenshot of the error message.

NOTE: To reproduce the error do the following:
1. Run the sample that comes with IzPack, save the xml script for
automated installation then uninstalled the sample.
2. Run the installer with the xml script as a parameter. This should
install the sample again.
3. Run the uninstaller from Sample Installation/Uninstaller

Can we get around this in any way?

Best regards,
Marius Nicolae

PS: this is a copy of the log file. The error is displayed here also.
[myHome] represents my home folder

2007-05-09T13:30:26.934 Phase 1: JarFile: [myHome]/Sample
Installation/Uninstaller/uninstaller.jar
2007-05-09T13:30:26.987 Phase 1: Extracted 119 files into /tmp/izpack9522.d
2007-05-09T13:30:26.988 Phase 1: Spawning phase 2:
        /usr/lib/jvm/java-1.5.0-sun-1.5.0_update8/jre/bin/java
        -classpath
        /tmp/izpack9522.d
        -Dself.mod.base=/tmp/izpack9522
        -Dself.mod.jar=[myHome]/Sample Installation/Uninstaller/uninstaller.jar
        -Dself.mod.class=com.izforge.izpack.uninstaller.Uninstaller
        -Dself.mod.method=uninstall
        -Dself.mod.phase=2
        com.izforge.izpack.uninstaller.SelfModifier
2007-05-09T13:30:26.993 Phase 1: Exit
2007-05-09T13:30:28.186 Phase 2: Spawning phase 3:
        /usr/lib/jvm/java-1.5.0-sun-1.5.0_update8/jre/bin/java
        -classpath
        /tmp/izpack9522.d
        -Dself.mod.base=/tmp/izpack9522
        -Dself.mod.jar=[myHome]/Sample Installation/Uninstaller/uninstaller.jar
        -Dself.mod.class=com.izforge.izpack.uninstaller.Uninstaller
        -Dself.mod.method=uninstall
        -Dself.mod.phase=3
        com.izforge.izpack.uninstaller.SelfModifier
2007-05-09T13:30:28.274 Phase 3: Invoking method:
com.izforge.izpack.uninstaller.Uninstaller.uninstall(String[] args)
2007-05-09T13:30:28.514 Phase 3: Method returned, waiting for other threads
java.lang.NullPointerException
        at java.io.ObjectInputStream$PeekInputStream.read(ObjectInputStream.java:2213)
        at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2226)
        at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2694)
        at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:761)
        at java.io.ObjectInputStream.<init>(ObjectInputStream.java:277)
        at com.izforge.izpack.uninstaller.Destroyer.getRootScript(Destroyer.java:223)
        at com.izforge.izpack.uninstaller.Destroyer.run(Destroyer.java:119)
2007-05-09T13:32:04.024 Phase 2: deleteing sandbox
2007-05-09T13:32:04.048 Phase 2: Phase 3 return value = 0
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