ConcatenatedTransform changes for revisions 7842:7843

This change has been forced by a GeoAPI change, and the patch applied here is the most straightforward one. Nevertheless Apache SIS does this work slightly differently (checking for the Parameterized interface instead, and using an other method call than toString(null)).

Command line:

svn diff --extensions "--unified --ignore-space-change --ignore-all-space --ignore-eol-style" -r7842:7843 https://svn.osgeo.org/geotools/trunk/modules/library/referencing/src/main/java/org/geotools/referencing/operation/transform/ConcatenatedTransform.java
Revision 7842Revision 7843
if (transform instanceof AbstractMathTransform) {
    ParameterValueGroup params = ((AbstractMathTransform) transform).getParameterValues();
    if (params != null) {
        String name = params.getDescriptor().getName(null);
        if (name!=null && (name=name.trim()).length()!=0) {
            return name;
        }
 
if (transform instanceof AbstractMathTransform) {
    ParameterValueGroup params = ((AbstractMathTransform) transform).getParameterValues();
    if (params != null) {
        String name = params.getDescriptor().getName().toString(null);
        if (name!=null && (name=name.trim()).length()!=0) {
            return name;
        }