[vtkusers] Compilation problem with java

[Daniel J. Blezek, Ph.D.]

Hi all,

  This should be a FAQ...

  javac will do the right thing if you tell it where to look for already
compiled classes.  The easiest way (and a bit of a hack) is to make your
user.make have a line like this:

JAVA_CLASS_HOME= <path to java classes> -classpath <path to java classes>

This tells javac to look in the same place for already compiled classes.
In the same way you can set the CLASSPATH environment variable to include
the place where you are putting the compiled classes:
(/scratch0/NOT_BACKED_UP/ucacdxa/TCLTk/VTKJavaClasses in the example
below).

-dan


On Tue, 13 Jun 2000, Suman Datta wrote:

> hi all,
> 	my problem is exactly the same ... not able to
> compile vtk on solaris ... somebody please advise how
> to solve this problem ...
> 
> regards,
> suman datta.
> 
> 
> --- Olivier Coulon <o.coulon at cs.ucl.ac.uk> wrote:
> > Dear vtk users,
> > 
> > I'm trying to compile vtk3.1 on Solaris2.7 using the
> > --with-java option
> > and I get an error as soon as the compilation of the
> > java classes
> > starts.  it seems that the compiler cannot find the
> > vtkProp class while
> > compiling vtkActor2D, which is weird because the two
> > files are in the
> > same directory.
> > Somebody has an idea what goes wrong ?
> > 
> > - Olivier
> > 
> > 
> > Here is the messages I get:
> > 
> > rm -f ../java/vtk/vtkObjectFactoryCollection.java;
> >
> /scratch0/NOT_BACKED_UP/ucacdxa/TCLTk/vtk31/wrap/vtkParseJava
> > ../vtkObjectFactoryCollection.h ./../wrap/hints 1 >
> > .../java/vtk/vtkObjectFactoryCollection.java
> >    Parsed func New
> >    Parsed func AddItem
> >    Parsed func GetNextItem
> >    Parsed func vtkObjectFactoryCollection
> >    Parsed func vtkObjectFactoryCollection
> >    Parsed func vtkObjectFactoryCollection
> >    Converted operator
> >    Parsed func AddItem
> > /opt/ucl/bin/javac -sourcepath
> > /scratch0/NOT_BACKED_UP/ucacdxa/TCLTk/vtk31/java/vtk
> > -d
> > /scratch0/NOT_BACKED_UP/ucacdxa/TCLTk/VTKJavaClasses
> > .../java/vtk/vtkActor2D.java
> > .../java/vtk/vtkActor2D.java:7: Superclass
> > vtk.vtkProp of class
> > vtk.vtkActor2D not found.
> > public class vtkActor2D extends vtkProp
> >                                 ^
> > 1 error
> > make[1]: *** [../java/vtk/vtkActor2D.class] Error 1
> > make[1]: Leaving directory
> > `/scratch0/NOT_BACKED_UP/ucacdxa/TCLTk/vtk31/common'
> > make: *** [build_common] Error 2
> > 
> > 
> > > begin:vcard 
> > n:Coulon;Olivier
> > tel;fax:+44 (0)20 7387 1387
> > tel;work:+44 (0)20 7679 3702
> > x-mozilla-html:TRUE
> > url:http://www.cs.ucl.ac.uk/staff/O.Coulon
> > org:University College London;Computer Sciences
> > adr:;;Gower Street;London;;WC1E 6BT;United-Kingdom
> > version:2.1
> > email;internet:O.Coulon at cs.ucl.ac.uk
> > title:PhD
> > x-mozilla-cpt:;27200
> > fn:Olivier Coulon
> > end:vcard
> > 
> 
> 
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--
Daniel Blezek, Ph.D.
blezek at crd.ge.com
Computer Graphics and Systems Program
Electronic Systems Lab
GE Corporate Research & Development