Judgment duplication

[yongzheng7]

Wcs201ElevationCoverage. java

public Wcs201ElevationCoverage(Sector sector, int numLevels, String serviceAddress, String coverage) {
// Judgment duplication
if (numLevels < 0) {
throw new IllegalArgumentException(
Logger.makeMessage("Wcs201ElevationCoverage", "constructor", "invalidNumLevels"));
}
if (numLevels < 0) {
throw new IllegalArgumentException(
Logger.makeMessage("Wcs201ElevationCoverage", "constructor", "The number of levels must be greater than 0"));
}