exception

问题 I am trying to access sqlite database in my app and getting this exception: 12-27 11:32:12.760: E/Exception:(746): java.lang.IllegalStateException: attempt to acquire a reference on a close SQLiteClosable Exception occured in ContactListOfNumbersForWhichRuleIsAlreadySpecified() of DatabaseHandlerRule.java I am using this code: public ArrayList<String> ContactListOfNumbersForWhichRuleIsAlreadySpecified(DatabaseHandlerRule Activity) { ContactRule contact = null; Cursor cursor = null;

问题 I am trying to write a file to the external storage of the android. On the AndroidManifest.xml I've added (within the manifest tag) <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> then I tried: File root = Environment.getExternalStorageDirectory(); File file = new File(root, xmlFilename); file.createNewFile(); And then I get the exception. How may I resolve this? 回答1: Make sure your SD card is not mounted to your computer. If you have enabled USB storage, your SD

问题 I have completed configuring SSL in my local Tomcat. And the exception was thrown when I call getOutputStream() public static InputStream send( String uri, Map<String, String> queryString, Map<String, String> headers, String method, String reqBody) throws IOException { String body = (reqBody != null ? reqBody : ""); //URL myURL = new URL(addUrlParam(uri, queryString)); URL myURL = new URL(uri); HttpURLConnection httpConn = (HttpURLConnection)myURL.openConnection(); httpConn.setRequestMethod

问题 Based on Brett Walker's comment to this question, I was wondering how it can be done. "If you want to fail the unit test, in the most general sense, when ever a catch clause is executed by the code in this method you are going to have to instrument the byte code to tell you when a catch clause is being executed. This is a complex task. I would not recommend this." How would I test that some method has executed a catch clause? (the isCatched() in the example below. Let's say I have the

问题 I had enable a All Exceptions break point in my project. But the UIApplicationMain() function always trigger the break point when the app launching. I think there was no exceptions here because if I click the Next Button twice, the app will launch successfully. I have tried commenting the code in the AppDelegate, but it does't work. 回答1: Possible solutions for it could be: Added custom font can cause this issue so, apparently delete (replace) it, somewhere in project is still his reference

问题 So I have this code m, b = eval(input()) the aim is to have a whole bunch of comma separated values inputted and then have python unpack the tuple into the variables but when i run i get this error x, y = eval(input()) File "<string>", line 1 1,2 ^ SyntaxError: unexpected EOF while parsing what did i do wrong? im using python 3 回答1: You should not use eval for things like this. It will be impossible to write it in a way such that the user can't break it (by mistake or on purpose). Do

问题 I just want to click a button, or edit an input's text, but I can't do it with this method. I'm storing the elements in a public static class, and I call them from an another public static class. If I don't use this classes, i don't get exception. public static class SiteA { static uidriver = Program.uidriver; public static class Functionality { public static void SomeTest() { //... Inputs.Buttons.Authorize.Click(); //Here I get the exception //Working code: uidriver.FindElement(By.Id("some

问题 Why am I unable to see the stack trace in Eclipse's console when an unchecked Exception is thrown from a thread different from the main thread? For example: ScheduledThreadPoolExecutor scheduledExecutor; scheduledExecutor.scheduleAtFixedRate(new Log(), 0, LOGGING_FREQUENCY_MS, TimeUnit.MILLISECONDS); public class Log implements Runnable { public void run() { //NullPointerException is thrown } } I get no output. But if I do: ScheduledThreadPoolExecutor scheduledExecutor; scheduledExecutor

问题 I am working on putting together a perl script. I have captured it below: #!/usr/bin/perl use Tie::File; use Net::SSH::Expect; use utf8; use warnings; use diagnostics; # Grab password from hidden file $pw=`cat .password`; chomp $pw; #Read list of 9200's from hosts.list file into an array tie @hosts, 'Tie::File', "hosts.list" or die; #Loop through hosts, connect via ssh, run commands, and write out log files. foreach (@hosts) { #Create ssh session handle my $ssh = Net::SSH::Expect->new ( host

问题 I've got a piece of legacy code written in Delphi, long before I jointed the company and the behaviour of my IDE makes me doubt a lot of my own skills. After loading a DLL and assigning the functions OpenDB, GetError and GetErrorStr from the DLL, this code gets called: If @OpenDB <> nil then begin DB_num := OpenDB((PAnsiChar(file))); if DB_num = -1 then begin err := GetError; ErrorString := GetErrorString(err); raise Exception.Create(ErrorString); Exit; end end else Exit; OpenDB returns -1