[bisq-network/bisq] nullpointer exception (#3846)

[Darosior]

Just got a `java.lang.NullPointerException`, I'm running v1.2.4 with a local `bitcoind`.
It happened when I clicked on a block chain confirmation notification IIRC.


```
Jan-02 12:49:29.394 [JavaFX Application Thread] INFO  b.c.d.m.DaoStateMonitoringService: ParseBlockChainComplete: Accumulated updateHashChain() calls for 35 block took 1514 ms (43 ms in average / block) 
Jan-02 12:49:30.754 [JavaFX Application Thread] INFO  b.c.b.w.BsqWalletService: updateBsqBalance took 41 ms 
Jan-02 12:49:30.780 [JavaFX Application Thread] INFO  b.c.d.m.n.RequestStateHashesHandler: Sending of GetDaoStateHashesRequest message to peer ef5qnzx6znifo3df.onion:8000 succeeded. 
Jan-02 12:49:30.780 [JavaFX Application Thread] INFO  b.c.d.m.n.RequestStateHashesHandler: Sending of GetDaoStateHashesRequest message to peer jhgcy2won7xnslrb.onion:8000 succeeded. 
Jan-02 12:49:30.780 [JavaFX Application Thread] INFO  b.c.d.m.n.RequestStateHashesHandler: Sending of GetProposalStateHashesRequest message to peer jhgcy2won7xnslrb.onion:8000 succeeded. 
Jan-02 12:49:30.780 [JavaFX Application Thread] INFO  b.c.d.m.n.RequestStateHashesHandler: Sending of GetProposalStateHashesRequest message to peer ef5qnzx6znifo3df.onion:8000 succeeded. 
Jan-02 12:49:30.780 [JavaFX Application Thread] INFO  b.c.d.m.n.RequestStateHashesHandler: Sending of GetBlindVoteStateHashesRequest message to peer jhgcy2won7xnslrb.onion:8000 succeeded. 
Jan-02 12:49:30.780 [JavaFX Application Thread] INFO  b.c.d.m.n.RequestStateHashesHandler: Sending of GetBlindVoteStateHashesRequest message to peer ef5qnzx6znifo3df.onion:8000 succeeded. 
Jan-02 12:49:30.792 [JavaFX Application Thread] INFO  b.c.d.m.n.RequestStateHashesHandler: We received from peer jhgcy2won7xnslrb.onion:8000 a GetDaoStateHashesResponse with 11 stateHashes 
Jan-02 12:49:30.813 [JavaFX Application Thread] INFO  b.c.d.m.n.RequestStateHashesHandler: We received from peer jhgcy2won7xnslrb.onion:8000 a GetProposalStateHashesResponse with 5 stateHashes 
Jan-02 12:49:30.814 [JavaFX Application Thread] INFO  b.c.d.m.n.RequestStateHashesHandler: We received from peer jhgcy2won7xnslrb.onion:8000 a GetBlindVoteStateHashesResponse with 5 stateHashes 
Jan-02 12:49:30.814 [JavaFX Application Thread] INFO  b.c.d.m.n.RequestStateHashesHandler: We received from peer ef5qnzx6znifo3df.onion:8000 a GetDaoStateHashesResponse with 11 stateHashes 
Jan-02 12:49:30.824 [JavaFX Application Thread] INFO  b.c.d.m.n.RequestStateHashesHandler: We received from peer ef5qnzx6znifo3df.onion:8000 a GetProposalStateHashesResponse with 5 stateHashes 
Jan-02 12:49:30.824 [JavaFX Application Thread] INFO  b.c.d.m.n.RequestStateHashesHandler: We received from peer ef5qnzx6znifo3df.onion:8000 a GetBlindVoteStateHashesResponse with 5 stateHashes 
Jan-02 12:49:35.808 [JavaFX Application Thread] INFO  b.c.d.m.DaoStateMonitoringService: Conflict with non-seed nodes: We received a block hash from peer 63kio4v4dgx4ykou.onion:9999 which conflicts with our block hash.
my daoStateHash=StateHash{
     height=610935,
     hash=6a34724386706751725ba3dba80b6e31eb724277,
     prevHash=7d76e07bf7a8b086bc8ea3a2afff82a75363e5a8
}
peers daoStateHash=StateHash{
     height=610935,
     hash=f2e6ceb407bc2b668b3c745b22dedc6c71dbbfcb,
     prevHash=c9e14841e965dff642d68c9ba9c9d92dec64c236
} 
Jan-02 12:49:50.041 [JavaFX Application Thread] ERROR b.c.s.CommonSetup: Uncaught Exception from thread JavaFX Application Thread 
Jan-02 12:49:50.041 [JavaFX Application Thread] ERROR b.c.s.CommonSetup: throwableMessage= null 
Jan-02 12:49:50.041 [JavaFX Application Thread] ERROR b.c.s.CommonSetup: throwableClass= class java.lang.NullPointerException 
Jan-02 12:49:50.043 [JavaFX Application Thread] ERROR b.c.s.CommonSetup: Stack trace:
java.lang.NullPointerException
	at com.jfoenix.skins.JFXTextFieldSkin.updateTextPos(JFXTextFieldSkin.java:109)
	at com.jfoenix.skins.JFXTextFieldSkin.layoutChildren(JFXTextFieldSkin.java:93)
	at javafx.controls/javafx.scene.control.Control.layoutChildren(Control.java:601)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1211)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Parent.layout(Parent.java:1218)
	at javafx.graphics/javafx.scene.Scene.doLayoutPass(Scene.java:590)
	at javafx.graphics/javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2507)
	at javafx.graphics/com.sun.javafx.tk.Toolkit.lambda$runPulse$2(Toolkit.java:410)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at javafx.graphics/com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:409)
	at javafx.graphics/com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:436)
	at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:518)
	at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:498)
	at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.pulseFromQueue(QuantumToolkit.java:491)
	at javafx.graphics/com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$11(QuantumToolkit.java:319)
	at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
	at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
	at javafx.graphics/com.sun.glass.ui.gtk.GtkApplication.lambda$runLoop$11(GtkApplication.java:277)
	at java.base/java.lang.Thread.run(Thread.java:844)
```

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