Hi there,
at the moment I am using Geotools in a project where we can't use Maven,
because we use a different building system yet. So I'm using the jars to make
it work.
Unfortunately, this seems to cause some trouble.
First, I added ALL the jars to my project, as suggested in the Eclipse
Quickstart tut.. but this causes the ImageIO to crash, when I want to render a
map and write it to a file. At the moment, I'm trying the other way; removing
all jars, and adding only the ones which seem to be necessary (until all the
packages can be found).
But now, my program crashes at this point
FileDataStore store;
try {
store = FileDataStoreFinder.getDataStore(file);
featureSource = store.getFeatureSource();
} catch (Exception e) {
System.out.println("Error fetching data from shape file. Exit");
e.printStackTrace();
}
with a NullPointerException, because getDataStore(File) returns null. I used
debug mode, and stepped into it, and found out that in
CommonFactoryFinder.getFileDataStoreFactories(Hints) causes this, on the return
line
public static synchronized Set<FileDataStoreFactorySpi>
getFileDataStoreFactories(Hints hints) {
hints = mergeSystemHints(hints);
return new
LazySet<FileDataStoreFactorySpi>(getServiceRegistry().getServiceProviders(
FileDataStoreFactorySpi.class, null, hints));
}
This is strange, as both the jars containing the LazySet and the
FileDataStoreFactorySpi are linked (gt-metadata-9.4.jar), but one of them seems
to be missing (or another one is disturbing?!).
Does anyone know how I could solve this? Are there any jars which could be
missing, or which are unnecessary?
(At the moment, I'm using the following jars:
gt-api-9.4.jar
gt-coverage-9.4.jar
gt-main-9.4.jar
gt-metadata-9.4.jar
gt-opengis-9.4.jar
gt-referencing-9.4.jar
gt-render-9.4.jar
gt-swing-9.4.jar
jts-1.13.jar
)
Furthermore, is there a better way to deal with problems like this than
manually adding jar which seem to contain the right content? This is a very
annoying and exhausting way...
Thanks in advance!
Philipp
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