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[equinox-dev] StateHelperImpl.getExportedPackageMap: map/set initial capacity

I am writing with regards to method “org.eclipse.osgi.internal.resolver.StateHelperImpl.getExportedPackageMap”, which constructs Map and Set with initial capacity. Is there a particular reason for constructing them in that way?
For example,
Map<String, Set<ExportPackageDescription>> result = new HashMap<String, Set<ExportPackageDescription>>(11);
exports = new HashSet<ExportPackageDescription>(1);
IMHO, in most cases, it causes array resizing, which, I saw, reflects to performance analysis.
Best regards
Radoslav Ivanov