Re: [Jamvm-general] Unable to run GUI application using cross-compiled jamvm for arm

[Adityadham <adi...@gm...>]

Thanks for your reply Xerxes. I made 2 different changes while compiling GNU
Classpath. Both compiled successfully.

1. ./configure --host=arm-xscale-linux-gnueabi  --prefix=/usr/local
--disable-examples --with-x --disable-qt-peer --enable-gtk-peer
--disable-gconf-peer --disable-plugin --enable-alsa --disable-dssi
--with-escher=/home/warrior/java-project/escher-0.3/src  
--enable-local-sockets --enable-collections --enable-xmlj --disable-Werror 
--enable-tools  --enable-default-toolkit=gnu.java.awt.peer.gtk.GtkToolkit

After transferring the above compiled gnu classpath and jamvm to the device,
when I run a sample swing application, it shows nothing. When I did verbose
it loads and links so many classes and finally stops with following two
lines

[Loaded gnu/java/awt/BitMaskExtent from
/usr/local/share/classpath/glibj.zip] 
[Linking class gnu/java/awt/BitMaskExtent]


2. This was another variation which I tried in which I disabled gtk and
default toolkil I gave of X.
GNU Classpath
./configure --host=arm-xscale-linux-gnueabi  --prefix=/usr/local
--disable-examples --with-x --disable-qt-peer --disable-gtk-peer
--disable-gconf-peer --disable-plugin --enable-alsa --disable-dssi
--with-escher=/home/warrior/java-project/escher-0.3/src  
--enable-local-sockets --enable-collections --enable-xmlj --disable-Werror 
--enable-tools  --enable-default-toolkit=gnu.java.awt.peer.x.XToolkit 

After transferring the above compiled gnu classpath and jamvm to the device,
when I run a sample swing application, it gives me following error:

Exception in thread "main" java.lang.ExceptionInInitializerError
   at gnu.java.awt.peer.x.XToolkit.getClasspathFontPeer(XToolkit.java:208)
   at java.awt.Font.getPeerFromToolkit(Font.java:329)
   at java.awt.Font.<init>(Font.java:381)
   at javax.swing.plaf.FontUIResource.<init>(FontUIResource.java:79)
   at
javax.swing.plaf.metal.DefaultMetalTheme.<clinit>(DefaultMetalTheme.java:69)
   at
javax.swing.plaf.metal.MetalLookAndFeel.getCurrentTheme(MetalLookAndFeel.java:1356)
   at
javax.swing.plaf.metal.MetalLookAndFeel.createDefaultTheme(MetalLookAndFeel.java:91)
   at
javax.swing.plaf.metal.MetalLookAndFeel.getDefaults(MetalLookAndFeel.java:150)
   at javax.swing.UIManager.setLookAndFeel(UIManager.java:913)
   at javax.swing.UIManager.<clinit>(UIManager.java:245)
   at javax.swing.JFrame.frameInit(JFrame.java:167)
   at javax.swing.JFrame.<init>(JFrame.java:126)
   at Main1.main(Main1.java:23)
Caused by: java.lang.NullPointerException
   at java.io.InputStreamReader.<init>(InputStreamReader.java:208)
   at java.util.Properties.load(Properties.java:380)
   at gnu.java.awt.font.OpenTypeFontPeer.<clinit>(OpenTypeFontPeer.java:93)
   at gnu.java.awt.peer.x.XToolkit.getClasspathFontPeer(XToolkit.java:208)


I am still not able to figure out what I am missing. Can you please give me
further pointers to that I can move in correct direction.

Thanks



Adityadham wrote:
> 
> Hello everyone,
> 
> We have cross-compiled the gnu classpath 0.98 and jamvm 1.5_4 for our arm
> xscale device. When we run helloworld program, it works perfectly fine.
> But when we run gui applications, there is no response. Below are our
> commands which we gave for cross-compiling:
> 
> GNU CLASSPATH:
> ./configure --host arm-xscale-linux-gnueabi –prefix=/usr/local
> --disable-examples --with-x --disable-qt-peer –disable-gtk-peer
> --disable-gconf-peer --disable-plugin --enable-alsa –disable-dssi
> --enable-local-sockets --enable-collections --enable-xmlj
> --enable-default-toolkit=gnu.java.awt.peer.gtk.XToolkit
> 
> make
> 
> make install
> 
> JAMVM:
> 
> ./configure --host arm-xscale-linux-gnueabi --prefix=/usr/local
> --with-classpath-install-dir=/usr/local –enable-ffi
> 
> make 
> 
> make install
> 
> We then transfer the required files to our device.
> 
> 
> we run our programs as
> 
> jamvm helloworld
> 
> jamvm -verbose Button
> 
> helloworld runs perfectly fine and gives the desired output in proper
> time. But when we run any gui sample and give verbose option it shows that
> it is loading and linking a lot of classes which are all present and
> finally it stops after displaying the following statements: 
> [Loaded gnu/java/awt/BitMaskExtent from
> /usr/local/share/classpath/glibj.zip] 
> [Linking class gnu/java/awt/BitMaskExtent]
> 
> Can someone please guide us on this. This is becoming very critical.
> 
> 
> It will be a great help if someone can direct us towards fixing this to
> see what we are missing to get the gui applications running with jamvm. We
> have made a small sample using java swing which creates a frame and 2
> buttons over it.
> 
> Thanks in advance.
> 

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