Links on about dialog do not work

[maurerle]

I just updated from 4.x to the latest 5.1.3 version of pdfsam basic (through the .deb provided on the homepage) and found the about dialog links not working.

When starting pdfsam from a terminal on my Debian 12 (Gnome + Wayland), i get the following error when clicking on a link:

java.io.IOException: Cannot run program "which": error=13, Permission denied
	at java.base/java.lang.ProcessBuilder.start(Unknown Source)
	at java.base/java.lang.ProcessBuilder.start(Unknown Source)
	at java.base/java.lang.Runtime.exec(Unknown Source)
	at java.base/java.lang.Runtime.exec(Unknown Source)
	at javafx.graphics@20.0.2/com.sun.javafx.application.HostServicesDelegate$StandaloneHostService.showDocument(HostServicesDelegate.java:146)
	at javafx.graphics@20.0.2/javafx.application.HostServices.showDocument(HostServices.java:115)
	at org.pdfsam.gui@5.1.3/org.pdfsam.gui.io.NativeOpenUrlController.openUrl(NativeOpenUrlController.java:52)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at org.pdfsam.eventstudio@3.0.4/org.pdfsam.eventstudio.Listeners$ReflectiveListenerWrapper.onEvent(Listeners.java:227)
	at org.pdfsam.eventstudio@3.0.4/org.pdfsam.eventstudio.Station.doBroadcast(Station.java:94)
	at org.pdfsam.eventstudio@3.0.4/org.pdfsam.eventstudio.Station.broadcast(Station.java:80)
	at org.pdfsam.eventstudio@3.0.4/org.pdfsam.eventstudio.DefaultEventStudio.broadcast(DefaultEventStudio.java:205)
	at org.pdfsam.ui.components@5.1.3/org.pdfsam.ui.components.commons.UrlButton.lambda$urlButton$0(UrlButton.java:69)
	at javafx.base@20.0.2/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
	at javafx.base@20.0.2/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:232)
	at javafx.base@20.0.2/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:189)
	at javafx.base@20.0.2/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
	at javafx.base@20.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
	at javafx.base@20.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@20.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@20.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@20.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@20.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@20.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@20.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@20.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@20.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@20.0.2/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
	at javafx.base@20.0.2/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
	at javafx.base@20.0.2/javafx.event.Event.fireEvent(Event.java:198)
	at javafx.graphics@20.0.2/javafx.scene.Node.fireEvent(Node.java:8944)
	at javafx.controls@20.0.2/javafx.scene.control.Button.fire(Button.java:203)
	at javafx.controls@20.0.2/com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:207)
	at javafx.controls@20.0.2/com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274)
	at javafx.base@20.0.2/com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:247)
	at javafx.base@20.0.2/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
	at javafx.base@20.0.2/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:232)
	at javafx.base@20.0.2/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:189)
	at javafx.base@20.0.2/com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
	at javafx.base@20.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
	at javafx.base@20.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@20.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@20.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@20.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@20.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@20.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@20.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@20.0.2/com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
	at javafx.base@20.0.2/com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
	at javafx.base@20.0.2/com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
	at javafx.base@20.0.2/com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
	at javafx.base@20.0.2/javafx.event.Event.fireEvent(Event.java:198)
	at javafx.graphics@20.0.2/javafx.scene.Scene$MouseHandler.process(Scene.java:3980)
	at javafx.graphics@20.0.2/javafx.scene.Scene.processMouseEvent(Scene.java:1890)
	at javafx.graphics@20.0.2/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2704)
	at javafx.graphics@20.0.2/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:411)
	at javafx.graphics@20.0.2/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:301)
	at java.base/java.security.AccessController.doPrivileged(Unknown Source)
	at javafx.graphics@20.0.2/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:450)
	at javafx.graphics@20.0.2/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:424)
	at javafx.graphics@20.0.2/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:449)
	at javafx.graphics@20.0.2/com.sun.glass.ui.View.handleMouseEvent(View.java:551)
	at javafx.graphics@20.0.2/com.sun.glass.ui.View.notifyMouse(View.java:937)
	at javafx.graphics@20.0.2/com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
	at javafx.graphics@20.0.2/com.sun.glass.ui.gtk.GtkApplication.lambda$runLoop$11(GtkApplication.java:316)
	at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: error=13, Permission denied
	at java.base/java.lang.ProcessImpl.forkAndExec(Native Method)
	at java.base/java.lang.ProcessImpl.<init>(Unknown Source)
	at java.base/java.lang.ProcessImpl.start(Unknown Source)
	... 67 more