### Question:
WWWConnection extends AbstractBlobStoreConnection { @Override public void close() { if (blobs != null) { for (WWWBlob blob : blobs.values()) blob.closed(); blobs.clear(); blobs = null; } super.close(); } WWWConnection(WWWStore store, Map<String, URLStreamHandler> handlers,
                       StreamManager streamManager); @Override void close(); @Override Blob getBlob(URI blobId, Map<String, String> hints); @Override Iterator<URI> listBlobIds(String filterPrefix); @Override void sync();  }### Answer:
@Test(expectedExceptions = { IllegalStateException.class }) public void testClose() throws IOException { closeableCon.close(); closeableCon.getBlob(URI.create("http: }