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NB 7 designer & JComboBox warnings

 
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Ricardus



Joined: 04 May 2010
Posts: 40
Location: Europe
PostPosted: Wed Dec 14, 2011 11:08 am    Post subject: NB 7 designer & JComboBox warnings Reply with quote
Hello,

With NB 7.01 and JDK 1.7.0_01 I develop a standard Java Swing application for Java 1.6 and higher, i.e. the project's source format is set to "JDK 6" (but I think I get the same problems with selected "JDK 7"). With the NB GUI designer I drop a JComboBox in a JFrame and enter some lines of text via this JCombobox' model editor, i.e. the lines you can select later in the JComboBox.

This however results in several warnings in the auto generated source code lines for this JComboBox. These warnings are marked as small orange bars on the right, and when you click on them NB jumps to the source code which shows yellow signs left to the lines.

The warnings say: "warning: raw type" or so.
It's about generics, so when for this JComboBox I set in NB designer's properties tab named "Source code" the field "Type parameter" to "<String>", these warnings disapear but another one is reported :

Quote:
found raw type: javax.swing.DefaultComboBoxModel
missing type arguments for generic class javax.swing.DefaultComboBoxModel<E>


The auto generatred source code line with the warning, and which sets the JComboBox model, looks like this:

Quote:
// Code regenerated by the Form Editor.
jCombox.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Entry1", "Entry2" }));



So my question is, why do I obtain warnings when I use JComboBox'es in NB 7 designer? And why do I have to manually set the "Type parameter" for every JComboBox to <String> and still obtain one warning?

Any help much appreciated.
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Ricardus



Joined: 04 May 2010
Posts: 40
Location: Europe
PostPosted: Thu Dec 15, 2011 1:08 pm    Post subject: Reply with quote
So, when you Netbeans users use JComboBox'es with the Netbeans 7 GUI designer (and JDK 1.7), there's no warnings in your auto generated source code?
Why is it with my Netbeans installation, however? Is there some option in Netbeans which I missed? Thanks for any help.


P.S. With Netbeans 6 I didn't have this problem.
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Ricardus



Joined: 04 May 2010
Posts: 40
Location: Europe
PostPosted: Sat Dec 17, 2011 2:41 pm    Post subject: Reply with quote
Is there any Netbeans 7 (with JDK 7) user at all who actually use a JComboBox in his JDK 6 or JDK 7 project successfully?
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Ricardus



Joined: 04 May 2010
Posts: 40
Location: Europe
PostPosted: Wed Dec 21, 2011 8:32 am    Post subject: Reply with quote
So nobody uses Netbeans 7 with JComboBox'es. :-(
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bolsover



Joined: 24 Jun 2010
Posts: 185
PostPosted: Wed Dec 21, 2011 12:27 pm    Post subject: Reply with quote
I use them... no real problems
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bjarven



Joined: 17 Mar 2011
Posts: 32
Location: Sweden, Linköping
PostPosted: Wed May 16, 2012 1:10 pm    Post subject: Reply with quote
I have a related problem I think, or perhaps i should label it an annoyance.

Whenever I compile i get tons of warnings for all my JComboBoxes;

Code:
MyFile.java:342: warning: [rawtypes] found raw type: JComboBox
    private javax.swing.JComboBox jammerComboBox;
  missing type arguments for generic class JComboBox<E>
  where E is a type-variable:
    E extends Object declared in class JComboBox


Is there a way to disable this warning and only this one? I need the other [rawtypes]-warnings...

I haven't found any way to add generics to the comboboxes generated by matisse either, is that possible? Not that i could do it to all legacy code anyway, but perhaps i should do this when adding new comboboxes.
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javaean



Joined: 02 Jul 2009
Posts: 4
PostPosted: Wed Feb 27, 2013 8:24 am    Post subject: Reply with quote
It is too late. However, open Properties of jComboBox, the open Code and set Type Parameters as <String>
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