IllegalArgumentException: invalid sequence element when creating SpinnerListModel

Question

I am trying to make a JSpinner with a set of values which step less and less as they decrease, so I created a function to generate these values and I add 100 values to a list, then try to create a SpinnerListModel with the list as it's source. This gives the following error:

Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: invalid sequence element
    at javax.swing.SpinnerListModel.setValue(SpinnerListModel.java:185)
    at com.fractalexplorer.main.RangeSelector.setValue(RangeSelector.java:106)

Here is the relevant code:

SpinnerListModel spinnerModel = new SpinnerListModel(constructSpinnerModelSource());

public List<Double> constructSpinnerModelSource()
{
    List<Double> list = new ArrayList<Double>();
    int steps = 100;

    for(int i = 0; i <= steps; i++)
        list.add(getStep(i));

    return list;
}

public Double getStep(double x)
{
    return 2.25 * Math.pow(0.95, x);
}

The values range from 2 to 0.013321190745751494 currently, here are the last 12 values:

0.02341981115445541, 0.022248820596732638, 0.021136379566896003, 
0.020079560588551204, 0.01907558255912364, 0.018121803431167458,    
0.017215713259609085, 0.01635492759662863, 0.015537181216797197, 
0.014760322155957337, 0.01402230604815947, 0.013321190745751494

read API for implemented arrays types (return list;) in SpinnerListModel, excelent hint in answer by brunobastosg — mKorbel, Feb 26 '15 at 12:51
for better help sooner post an SSCCE/MCVE? short, runnable, compilable — mKorbel, Feb 26 '15 at 12:51

brunobastosg · Accepted Answer · 2015-02-26T14:04:42.917

2

This exception is thrown if you try to set a value that does not belong in the JSpinner's list of values.

Example:

String[] values = {"one", "two", "three", "four"};
SpinnerModel model = new SpinnerListModel(values);
model.setValue("TWO"); // throws IllegalArgumentException

edited Feb 26 '15 at 14:04

answered Feb 26 '15 at 12:03

brunobastosg

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That was it, the value I was trying to set wasn't in the list! Thanks – mbdavis Feb 26 '15 at 14:43

score 1 · Answer 2 · answered Feb 26 '15 at 12:01

You have list of Double items but try to set value to RangeSelector instance.

Either try to add RangeSelector instances to the model or cast the range to Double when calling setValue(). In fact you try to set value which is not in the list and model can't accept the value.

IllegalArgumentException: invalid sequence element when creating SpinnerListModel

2 Answers2