I have a property in jsp like the following 

```
   <html:text property="sequenceNumbersMap[0]"  styleId="sequenceNumbersMap[0]" value="0"/>
   <html:text property="sequenceNumbersMap[1]"  styleId="sequenceNumbersMap[1]" value="1"/>
   <html:text property="sequenceNumbersMap[2]"  styleId="sequenceNumbersMap[2]" value="2"/>
   <html:text property="sequenceNumbersMap[3]"  styleId="sequenceNumbersMap[3]" value="3"/>

```

and `ActionForm` has the property like

Map sequenceNumbersMap;

and `getter/setter`

```
public Map<Integer, Integer> getSequenceNumbersMap() {
        return sequenceNumbersMap;
    }

    public void setSequenceNumbersMap(Map<Integer, Integer> sequenceNumbersMap) {
        this.sequenceNumbersMap = sequenceNumbersMap;
    }

```

but when i try to submit the jsp i get the following exception : 

```
java.lang.IllegalArgumentException: Property 'sequenceNumbersMap' is not indexed

```

would someone help me to fix this issue?

Thanks