[MATH-284] Avoid ArrayStoreException

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0
• Fix Version/s: 3.0
• Assignee: Unassigned
• Reporter: Klaus
• Created: 16/Aug/09 19:57
• Updated: 24/Mar/12 16:16
• Resolved: 01/Oct/11 15:16

Description

Add a new method
org.apache.commons.math,Field#getRuntimeClass():
...
/**

• Returns the runtime class of the FieldElement.
• @return The {@code Class}

  object that represents the runtime

• class of this object.
  */
  Class<? extends FieldElement> getRuntimeClass();
  ...

and replace all occurrences of
Array.newInstance(field.getZero().getClass(),....)
with
Array.newInstance(field.getRuntimeClass(),....)

to avoid the throwing of ArrayStoreException in the case you have a type hierachy of Fields with a common interface
and the array should have the interface type at runtime.