Thread: [Java-gnome-developer] Re: error: java.lang.reflect.InvocationTargetException: ListenerDelegate.cre
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From: Jonathon L. <j...@co...> - 2005-03-18 10:44:24
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I was having the same problem, so I did what you said.
changing from line 160 in file ListenerDelegate.java:
} catch (Exception e) {
throw new InvocationTargetException(e, "ListenerDelegate.create failure");
}
to
} catch (Exception e) {
e.printStackTrace();
throw new InvocationTargetException(e, "ListenerDelegate.create failure");
}
I got the following output:
java.lang.NullPointerException
at org.gnu.glade.ListenerDelegate.getHandlerMethod(ListenerDelegate.java:82)
at org.gnu.glade.ListenerDelegate.create(ListenerDelegate.java:142)
at org.gnu.glade.LibGlade.connect(LibGlade.java:178)
at org.gnu.glade.LibGlade.glade_xml_signal_autoconnect_full(Native Method)
at org.gnu.glade.LibGlade.<init>(LibGlade.java:94)
at org.gnu.glade.LibGlade.<init>(LibGlade.java)
at turtle.Turtle.<init>(Turtle.java:24)
at turtle.Turtle.main(Turtle.java:18)
java.lang.reflect.InvocationTargetException: ListenerDelegate.create failure
I'm using jdk1.5.0, under fedora 3, using the libgtk etc. packages from
http://people.redhat.com/fitzsim/java-gnome/
let us know if you want any more experiments performed.
J.
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From: Jonathon L. <j...@co...> - 2005-03-18 11:21:37
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I get the same error using gij java.lang.NullPointerException at org.gnu.glade.ListenerDelegate.getHandlerMethod(java.lang.Object, java.lang.String) (Unknown Source) at org.gnu.glade.ListenerDelegate.create(java.lang.String, java.lang.Class, java.lang.Object, java.lang.String, java.lang.Object) (Unknown Source) at org.gnu.glade.LibGlade.connect(java.lang.String, int, java.lang.String, java.lang.String, int, boolean) (Unknown Source) at _Jv_CallAnyMethodA(java.lang.Object, java.lang.Class, _Jv_Method, boolean, boolean, java.lang.Class[], jvalue, jvalue, boolean) (/usr/lib/libgcj.so.5.0.0) at g_hash_table_foreach (/usr/lib/libglib-2.0.so.0.400.7) at glade_xml_signal_autoconnect_full (/usr/lib/libglade-2.0.so.0.0.4) at Java_org_gnu_glade_LibGlade_glade_1xml_1signal_1autoconnect_1full (/usr/lib/libgladejava2.8.so.2.8.2) at _Jv_JNIMethod.call(ffi_cif, void, ffi_raw, void) (/usr/lib/libgcj.so.5.0.0) at org.gnu.glade.LibGlade.LibGlade(java.lang.String, java.lang.Object, java.lang.String) (Unknown Source) at org.gnu.glade.LibGlade.LibGlade(java.lang.String, java.lang.Object) (Unknown Source) at turtle.Turtle.Turtle() (Unknown Source) at turtle.Turtle.main(java.lang.String[]) (Unknown Source) java.lang.reflect.InvocationTargetException: ListenerDelegate.create failure |
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From: Jeff M. <ku...@gm...> - 2005-03-18 12:01:37
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Could you please send a copy of the java code and glade file. I would be happy to take a look at this and help with a resolution. On Sat, 27 Oct 2001 21:10:48 +1000 (EST), Jonathon Love <j...@co...> wrote: > I get the same error using gij > > java.lang.NullPointerException > at org.gnu.glade.ListenerDelegate.getHandlerMethod(java.lang.Object, > java.lang.String) (Unknown Source) > at org.gnu.glade.ListenerDelegate.create(java.lang.String, > java.lang.Class, java.lang.Object, java.lang.String, java.lang.Object) > (Unknown Source) > at org.gnu.glade.LibGlade.connect(java.lang.String, int, > java.lang.String, java.lang.String, int, boolean) (Unknown Source) > at _Jv_CallAnyMethodA(java.lang.Object, java.lang.Class, _Jv_Method, > boolean, boolean, java.lang.Class[], jvalue, jvalue, boolean) > (/usr/lib/libgcj.so.5.0.0) > at g_hash_table_foreach (/usr/lib/libglib-2.0.so.0.400.7) > at glade_xml_signal_autoconnect_full (/usr/lib/libglade-2.0.so.0.0.4) > at Java_org_gnu_glade_LibGlade_glade_1xml_1signal_1autoconnect_1full > (/usr/lib/libgladejava2.8.so.2.8.2) > at _Jv_JNIMethod.call(ffi_cif, void, ffi_raw, void) > (/usr/lib/libgcj.so.5.0.0) > at org.gnu.glade.LibGlade.LibGlade(java.lang.String, java.lang.Object, > java.lang.String) (Unknown Source) > at org.gnu.glade.LibGlade.LibGlade(java.lang.String, java.lang.Object) > (Unknown Source) > at turtle.Turtle.Turtle() (Unknown Source) > at turtle.Turtle.main(java.lang.String[]) (Unknown Source) > java.lang.reflect.InvocationTargetException: ListenerDelegate.create failure > > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from real users. > Discover which products truly live up to the hype. Start reading now. > http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click > _______________________________________________ > java-gnome-developer mailing list > jav...@li... > https://lists.sourceforge.net/lists/listinfo/java-gnome-developer > -- Jeffrey Morgan "The highest reward for a man's toil is not what he gets for it, but what he becomes by it" - Jon Ruskin |
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From: Leonardo M. <leo...@gm...> - 2005-03-18 13:36:05
Attachments:
gui.glade
Example.java
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This is one example... On Fri, 18 Mar 2005 07:01:26 -0500, Jeff Morgan <ku...@gm...> wrote: > Could you please send a copy of the java code and glade > file. I would be happy to take a look at this and help > with a resolution. >=20 > On Sat, 27 Oct 2001 21:10:48 +1000 (EST), Jonathon Love > <j...@co...> wrote: > > I get the same error using gij > > > > java.lang.NullPointerException > > at org.gnu.glade.ListenerDelegate.getHandlerMethod(java.lang.Object, > > java.lang.String) (Unknown Source) > > at org.gnu.glade.ListenerDelegate.create(java.lang.String, > > java.lang.Class, java.lang.Object, java.lang.String, java.lang.Object) > > (Unknown Source) > > at org.gnu.glade.LibGlade.connect(java.lang.String, int, > > java.lang.String, java.lang.String, int, boolean) (Unknown Source) > > at _Jv_CallAnyMethodA(java.lang.Object, java.lang.Class, _Jv_Method, > > boolean, boolean, java.lang.Class[], jvalue, jvalue, boolean) > > (/usr/lib/libgcj.so.5.0.0) > > at g_hash_table_foreach (/usr/lib/libglib-2.0.so.0.400.7) > > at glade_xml_signal_autoconnect_full (/usr/lib/libglade-2.0.so.0.0.4= ) > > at Java_org_gnu_glade_LibGlade_glade_1xml_1signal_1autoconnect_1full > > (/usr/lib/libgladejava2.8.so.2.8.2) > > at _Jv_JNIMethod.call(ffi_cif, void, ffi_raw, void) > > (/usr/lib/libgcj.so.5.0.0) > > at org.gnu.glade.LibGlade.LibGlade(java.lang.String, java.lang.Objec= t, > > java.lang.String) (Unknown Source) > > at org.gnu.glade.LibGlade.LibGlade(java.lang.String, java.lang.Objec= t) > > (Unknown Source) > > at turtle.Turtle.Turtle() (Unknown Source) > > at turtle.Turtle.main(java.lang.String[]) (Unknown Source) > > java.lang.reflect.InvocationTargetException: ListenerDelegate.create fa= ilure > > > > ------------------------------------------------------- > > SF email is sponsored by - The IT Product Guide > > Read honest & candid reviews on hundreds of IT Products from real users= . > > Discover which products truly live up to the hype. Start reading now. > > http://ads.osdn.com/?ad_id=3D6595&alloc_id=3D14396&op=3Dclick > > _______________________________________________ > > java-gnome-developer mailing list > > jav...@li... > > https://lists.sourceforge.net/lists/listinfo/java-gnome-developer > > >=20 > -- > Jeffrey Morgan >=20 > "The highest reward for a man's toil is not > what he gets for it, but what he becomes by it" > - Jon Ruskin >=20 >=20 > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from real users. > Discover which products truly live up to the hype. Start reading now. > http://ads.osdn.com/?ad_id=3D6595&alloc_id=3D14396&op=3Dclick > _______________________________________________ > java-gnome-developer mailing list > jav...@li... > https://lists.sourceforge.net/lists/listinfo/java-gnome-developer >=20 --=20 Leonardo Marques=20 :@ Deleta logo esse outlook e esse internet explorer a=ED... :@ http://www.getfirefox.com - http://www.mozilla.org/products/thunderbird/ Bras=EDlia - DF |
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From: Jonathon L. <j...@co...> - 2005-03-19 00:10:51
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All the runExample examples work, so I presume the problem is in libGlade. glade file: <?xml version="1.0" standalone="no"?> <!--*- mode: xml -*--> <!DOCTYPE glade-interface SYSTEM "http://glade.gnome.org/glade-2.0.dtd"> <glade-interface> <widget class="GtkWindow" id="window1"> <property name="visible">True</property> <property name="title" translatable="yes">window1</property> <property name="type">GTK_WINDOW_TOPLEVEL</property> <property name="window_position">GTK_WIN_POS_NONE</property> <property name="modal">False</property> <property name="resizable">True</property> <property name="destroy_with_parent">False</property> <property name="decorated">True</property> <property name="skip_taskbar_hint">False</property> <property name="skip_pager_hint">False</property> <property name="type_hint">GDK_WINDOW_TYPE_HINT_NORMAL</property> <property name="gravity">GDK_GRAVITY_NORTH_WEST</property> <child> <widget class="GtkButton" id="button"> <property name="visible">True</property> <property name="can_focus">True</property> <property name="label" translatable="yes">button</property> <property name="use_underline">True</property> <property name="relief">GTK_RELIEF_NORMAL</property> <property name="focus_on_click">True</property> <signal name="clicked" handler="on_button_clicked" last_modification_time="Sat, 19 Mar 2005 00:08:48 GMT"/> </widget> </child> </widget> </glade-interface> source file: package test; import org.gnu.glade.LibGlade; import org.gnu.gtk.Gtk; public class Test { public static void main(String[] args) { Gtk.init(args); Test turtle = new Test(); Gtk.main(); } public Test() { try { LibGlade moo = new LibGlade("/home/j/Projects/tmp/tmp.glade", this); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } public void on_button_click() { System.out.println("click"); } } > Could you please send a copy of the java code and glade > file. I would be happy to take a look at this and help > with a resolution. |
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From: Jonathon L. <j...@co...> - 2005-03-19 22:43:01
Attachments:
ListenerDelegate.java
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> If it"s not asking too much, could you also please send the modified
> version you made of ListenerDelegate.java?
here 'tis, attached, and pasted.
/*
* LibGlade support for libglade for Java-Gnome
*
* The Java-Gnome bindings library is free software distributed under
* the terms of the GNU Library General Public License version 2.
*/
/**
* ListenerDelegate: abstract base class for Java-GNOME event listener
* delegate classes which connect to glade-specified event handlers.
*
* @author Tom Ball
*/
package org.gnu.glade;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import org.gnu.gnome.event.AppBarListener;
import org.gnu.gnome.event.ClientListener;
import org.gnu.gnome.event.ColorPickerListener;
import org.gnu.gnome.event.DateEditListener;
import org.gnu.gnome.event.DruidPageChangeListener;
import org.gnu.gnome.event.DruidPageSetupListener;
import org.gnu.gnome.event.FontPickerListener;
import org.gnu.gtk.Widget;
import org.gnu.gtk.event.AdjustmentListener;
import org.gnu.gtk.event.ButtonListener;
import org.gnu.gtk.event.CalendarListener;
import org.gnu.gtk.event.CellRendererTextListener;
import org.gnu.gtk.event.CheckMenuItemListener;
import org.gnu.gtk.event.ColorButtonListener;
import org.gnu.gtk.event.ComboBoxListener;
import org.gnu.gtk.event.ContainerListener;
import org.gnu.gtk.event.DialogListener;
import org.gnu.gtk.event.EntryListener;
import org.gnu.gtk.event.ExpanderListener;
import org.gnu.gtk.event.ExposeListener;
import org.gnu.gtk.event.FocusListener;
import org.gnu.gtk.event.FontButtonListener;
import org.gnu.gtk.event.GtkEvent;
import org.gnu.gtk.event.GtkEventType;
import org.gnu.gtk.event.ItemListener;
import org.gnu.gtk.event.KeyListener;
import org.gnu.gtk.event.LifeCycleListener;
import org.gnu.gtk.event.MenuItemListener;
import org.gnu.gtk.event.MouseListener;
import org.gnu.gtk.event.MouseMotionListener;
import org.gnu.gtk.event.NotebookListener;
import org.gnu.gtk.event.OptionMenuListener;
import org.gnu.gtk.event.RangeListener;
import org.gnu.gtk.event.ScaleListener;
import org.gnu.gtk.event.SpinListener;
import org.gnu.gtk.event.TextBufferListener;
import org.gnu.gtk.event.TextViewListener;
import org.gnu.gtk.event.ToggleListener;
import org.gnu.gtk.event.ToolBarListener;
import org.gnu.gtk.event.ToolButtonListener;
import org.gnu.gtk.event.TreeModelListener;
import org.gnu.gtk.event.TreeSelectionListener;
import org.gnu.gtk.event.TreeViewColumnListener;
abstract class ListenerDelegate {
protected String signal; // the signal being fired by GTK
protected Object owner; // the object which contains custom handler
// methods
protected Method handler; // the owner's handler method for this signal
protected Object target; // the optional object to send the handler
public ListenerDelegate(String signal, Object owner, Method handler,
Object target) throws NoSuchMethodException {
this.signal = signal;
this.owner = owner;
this.handler = handler;
this.target = target;
}
private static Method getHandlerMethod(Object owner, String handlerName)
throws NoSuchMethodException {
Method[] methods = owner.getClass().getMethods();
int n = methods.length;
for (int i = 0; i < n; i++) {
Method m = methods[i];
if (m.getName().equals(handlerName)) {
return m;
}
}
throw new NoSuchMethodException(owner.getClass().getName() + '.' +
handlerName);
}
public boolean fireEvent(GtkEvent event) {
return fireEvent(event, 0.0);
}
public boolean fireEvent(GtkEvent event, double value) {
Object[] params = null;
Object ret = null;
try {
Widget source = (Widget)event.getSource();
//System.err.println("fireEvent: source:"+source);
GtkEventType typeNeeded = source.getEventType(signal);
//System.err.println("fireEvent: typeNeeded:"+typeNeeded);
if (event.getType() == typeNeeded) {
Class[] paramTypes = handler.getParameterTypes();
// handlers have optional event and target parameters
int n = paramTypes.length;
//System.err.println("fireEvent: n:"+n);
if (n == 2)
// <handler>(event, target);
params = new Object[] { event, target };
else if (n == 1)
// <handler>(event);
params = new Object[] { event };
else
// <handler>();
params = new Object[0];
//System.err.println("fireEvent: owner:"+owner+", event:"+event+",
target:"+target);
ret = handler.invoke(owner, params);
// return type is either null (if void) or boolean
return (ret != null && ret.getClass().equals(Boolean.TYPE)) ?
((Boolean)ret).booleanValue() : false;
}
/* else ignore event */
} catch (InvocationTargetException e) {
System.err.println("ListenerDelegate.fireEvent(" + event + "): " +
e.getTargetException());
e.getTargetException().printStackTrace();
} catch (Exception e) {
System.err.println("ListenerDelegate.fireEvent(" + event + "): " + e);
e.printStackTrace();
System.err.println("params:"+params+", ret:"+ret);
}
return false;
}
static ListenerDelegate create(String signal, Class listenerClass, Object
owner, String handlerName, Object target)
throws ClassNotFoundException, NoSuchMethodException,
InvocationTargetException {
try {
Method handler = getHandlerMethod(owner, handlerName);
Class delegateClass = (Class)delegateClassMap.get(listenerClass);
if (delegateClass == null) {
String listenerClassName = listenerClass.getName();
String delegateClassName = (String)
delegateMap.get(listenerClassName);
delegateClass = Class.forName(delegateClassName);
delegateClassMap.put(listenerClass, delegateClass);
}
if (delegateClass == null)
throw new ClassNotFoundException("No libglade delegate for " +
listenerClass.getName());
Constructor ctor =
delegateClass.getConstructor(new Class[] { String.class, Object.class,
Method.class, Object.class });
return (ListenerDelegate)ctor.newInstance(new Object[] { signal, owner,
handler, target });
} catch (NoSuchMethodException e) {
throw e;
} catch (InvocationTargetException e) {
throw e;
} catch (Exception e) {
e.printStackTrace();
throw new InvocationTargetException(e, "ListenerDelegate.create failure");
}
}
// Map GTK and GNOME listener interfaces to their respective delegates.
private static Map delegateMap = new HashMap();
private static Map delegateClassMap = new HashMap();
static {
delegateMap.put("org.gnu.gtk.event.AdjustmentListener",
"org.gnu.glade.AdjustmentDelegate");
delegateMap.put("org.gnu.gtk.event.ButtonListener",
"org.gnu.glade.ButtonDelegate");
delegateMap.put("org.gnu.gtk.event.CalendarListener",
"org.gnu.glade.CalendarDelegate");
delegateMap.put("org.gnu.gtk.event.CellRendererTextListener",
"org.gnu.glade.CellRendererTextDelegate");
delegateMap.put("org.gnu.gtk.event.CheckMenuItemListener",
"org.gnu.glade.CheckMenuItemDelegate");
delegateMap.put("org.gnu.gtk.event.ColorButtonListener",
"org.gnu.glade.ColorButtonDelegate");
delegateMap.put("org.gnu.gtk.event.ComboBoxListener",
"org.gnu.glade.ComboBoxDelegate");
delegateMap.put("org.gnu.gtk.event.ContainerListener",
"org.gnu.glade.ContainerDelegate");
delegateMap.put("org.gnu.gtk.event.DialogListener",
"org.gnu.glade.DialogDelegate");
delegateMap.put("org.gnu.gtk.event.EntryListener",
"org.gnu.glade.EntryDelegate");
delegateMap.put("org.gnu.gtk.event.ExpanderListener",
"org.gnu.glade.ExpanderDelegate");
delegateMap.put("org.gnu.gtk.event.ExposeListener",
"org.gnu.glade.ExposeDelegate");
delegateMap.put("org.gnu.gtk.event.FocusListener",
"org.gnu.glade.FocusDelegate");
delegateMap.put("org.gnu.gtk.event.FontButtonListener",
"org.gnu.glade.FontButtonDelegate");
delegateMap.put("org.gnu.gtk.event.ItemListener",
"org.gnu.glade.ItemDelegate");
delegateMap.put("org.gnu.gtk.event.KeyListener",
"org.gnu.glade.KeyDelegate");
delegateMap.put("org.gnu.gtk.event.LifeCycleListener",
"org.gnu.glade.LifeCycleDelegate");
delegateMap.put("org.gnu.gtk.event.MenuItemListener",
"org.gnu.glade.MenuItemDelegate");
delegateMap.put("org.gnu.gtk.event.MouseListener",
"org.gnu.glade.MouseDelegate");
delegateMap.put("org.gnu.gtk.event.MouseMotionListener",
"org.gnu.glade.MouseMotionDelegate");
delegateMap.put("org.gnu.gtk.event.NotebookListener",
"org.gnu.glade.NotebookDelegate");
delegateMap.put("org.gnu.gtk.event.OptionMenuListener",
"org.gnu.glade.OptionMenuDelegate");
delegateMap.put("org.gnu.gtk.event.RangeListener",
"org.gnu.glade.RangeDelegate");
delegateMap.put("org.gnu.gtk.event.ScaleListener",
"org.gnu.glade.ScaleDelegate");
delegateMap.put("org.gnu.gtk.event.SpinListener",
"org.gnu.glade.SpinDelegate");
delegateMap.put("org.gnu.gtk.event.TextBufferListener",
"org.gnu.glade.TextBufferDelegate");
delegateMap.put("org.gnu.gtk.event.ToggleListener",
"org.gnu.glade.ToggleDelegate");
delegateMap.put("org.gnu.gtk.event.ToolBarListener",
"org.gnu.glade.ToolBarDelegate");
delegateMap.put("org.gnu.gtk.event.ToolButtonListener",
"org.gnu.glade.ToolButtonDelegate");
delegateMap.put("org.gnu.gtk.event.TreeModelListener",
"org.gnu.glade.TreeModelDelegate");
delegateMap.put("org.gnu.gtk.event.TreeSelectionListener",
"org.gnu.glade.TreeSelectionDelegate");
delegateMap.put("org.gnu.gtk.event.TreeViewColumnListener",
"org.gnu.glade.TreeViewColumnDelegate");
delegateMap.put("org.gnu.gtk.event.TextViewListener",
"org.gnu.glade.TextViewDelegate");
delegateMap.put("org.gnu.gnome.AppBarListener",
"org.gnu.glade.AppBarDelegate");
delegateMap.put("org.gnu.gnome.ClientListener",
"org.gnu.glade.ClientDelegate");
delegateMap.put("org.gnu.gnome.ColorPickerListener",
"org.gnu.glade.ColorPickerDelegate");
delegateMap.put("org.gnu.gnome.DateEditListener",
"org.gnu.glade.DateEditDelegate");
delegateMap.put("org.gnu.gnome.DruidPageChangeListener",
"org.gnu.glade.DruidPageDelegate");
delegateMap.put("org.gnu.gnome.DruidPageSetupListener",
"org.gnu.glade.DruidPageDelegate");
delegateMap.put("org.gnu.gnome.FontPickerListener",
"org.gnu.glade.FontPickerDelegate");
}
}
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From: Leonardo M. <leo...@gm...> - 2005-03-18 11:00:34
|
I have the same configurations... jdk1.5.0 under fedora 3 packages from http://people.redhat.com/fitzsim/java-gnome/ --=20 Leonardo Marques=20 :@ Deleta logo esse outlook e esse internet explorer a=ED... :@ http://www.getfirefox.com - http://www.mozilla.org/products/thunderbird/ Bras=EDlia - DF |
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