[Jython-dev] LiftOff and IBMJava on linux.

[<bc...@wo...>]

Hi, 

There have been a report where the LiftOff installer causes IBMJava2-13
to crash hard with a SIGSEGV. I have been unable to guess what it is in
liftoff that causes this, so I hope some of you can help.

To make it easier to test and experiment, I have put together a minimum
developer package for liftoff. 

- The jython-20pa2.class file is basicly a .zip file, and most 
  zip tools can extract the content. (The chmod may be wrong)

- Extract the net.sourceforge.liftoff.installer.* sources (nsli-src)
  into the same directory.

- Run the installer from the filesystem instead of the 
  jython-20pa2.class 

     java -classpath . net.sourceforge.liftoff.installer.Install2 \
          -o <outdir> demo lib source

  This have been consistently coredumping.


I hope that this setup makes it possible to make changes and test them
with a quick turnaround.

   ftp://jython.sourceforge.net/pub/jython/jython-20pa2.class
   ftp://jython.sourceforge.net/pub/jython/nsli-src.tar.gz


This is the stack trace at the time of the SIGSEGV:

    "main" (TID:0x403187e0, sys_thread_t:0x804f6e0, state:R, native ID:0x400) prio=5
	at java.io.BufferedInputStream.<init>(BufferedInputStream.java:161)
	at java.io.BufferedInputStream.<init>(BufferedInputStream.java:141)
	at sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection.java:90)
	at sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLConnection.java:155)
	at java.net.URL.openStream(URL.java:813)
	at java.lang.ClassLoader.getResourceAsStream(ClassLoader.java:906)
	at net.sourceforge.liftoff.installer.source.ResourceSource.getFile(ResourceSource.java:77)
	at net.sourceforge.liftoff.installer.items.InstallerLib.install(InstallerLib.java:91)
	at net.sourceforge.liftoff.installer.items.InstallableContainer.install(InstallableContainer.java:145)
	at net.sourceforge.liftoff.installer.Install2.<init>(Install2.java)
	at net.sourceforge.liftoff.installer.Install2.main(Install2.java)

regards,
finn