in spring-quartz/src/main/java/org/apache/archiva/components/scheduler/CronExpressionValidator.java [360:374]
private boolean checkIncrementField( String value, int minimal, int maximal )
{
String start = value.substring( 0, value.indexOf( '/' ) );
String increment = value.substring( value.indexOf( '/' ) + 1 );
if ( !"*".equals( start ) )
{
return checkIntValue( start, minimal, maximal ) && checkIntValue( increment, minimal, maximal, false );
}
else
{
return checkIntValue( increment, minimal, maximal );
}
}