[TIMOB-14521] Android: Reading NULL value from database causes java exception

var win = Ti.UI.createWindow();
win.open();

var db = Ti.Database.open('testDB');

db.execute('CREATE TABLE IF NOT EXISTS test(name TEXT, captured INTEGERL);');
db.execute('INSERT INTO test (name, captured) VALUES (?,?)', "111", 222);
db.execute('INSERT INTO test (name, captured) VALUES (?,?)', null, null);

var results = db.execute('SELECT name, captured FROM test');
while (results.isValidRow()) {
	var name = results.field(0);
	var captured = results.fieldByName('captured');
	Ti.API.info(name + ' ' + captured);
	results.next();
}
results.close();
db.close();

E/TiResultSet(32758): (KrollRuntimeThread) [4,1124] Exception getting value for column 7: null
E/TiResultSet(32758): java.lang.NullPointerException
E/TiResultSet(32758): 	at java.io.ByteArrayInputStream.<init>(ByteArrayInputStream.java:58)
E/TiResultSet(32758): 	at org.appcelerator.titanium.TiBlob.getInputStream(TiBlob.java:319)
E/TiResultSet(32758): 	at org.appcelerator.titanium.TiBlob.guessContentTypeFromStream(TiBlob.java:193)
E/TiResultSet(32758): 	at org.appcelerator.titanium.TiBlob.loadBitmapInfo(TiBlob.java:209)
E/TiResultSet(32758): 	at org.appcelerator.titanium.TiBlob.blobFromData(TiBlob.java:182)
E/TiResultSet(32758): 	at org.appcelerator.titanium.TiBlob.blobFromData(TiBlob.java:165)
E/TiResultSet(32758): 	at ti.modules.titanium.database.TiResultSetProxy.internalGetField(TiResultSetProxy.java:113)
E/TiResultSet(32758): 	at ti.modules.titanium.database.TiResultSetProxy.internalGetField(TiResultSetProxy.java:92)
E/TiResultSet(32758): 	at ti.modules.titanium.database.TiResultSetProxy.field(TiResultSetProxy.java:64)
E/TiResultSet(32758): 	at org.appcelerator.kroll.runtime.v8.V8Runtime.nativeRunModule(Native Method)
E/TiResultSet(32758): 	at org.appcelerator.kroll.runtime.v8.V8Runtime.doRunModule(V8Runtime.java:159)
E/TiResultSet(32758): 	at org.appcelerator.kroll.KrollRuntime.handleMessage(KrollRuntime.java:289)
E/TiResultSet(32758): 	at org.appcelerator.kroll.runtime.v8.V8Runtime.handleMessage(V8Runtime.java:185)
E/TiResultSet(32758): 	at android.os.Handler.dispatchMessage(Handler.java:95)
E/TiResultSet(32758): 	at android.os.Looper.loop(Looper.java:130)
E/TiResultSet(32758): 	at org.appcelerator.kroll.KrollRuntime$KrollRuntimeThread.run(KrollRuntime.java:112)