Java Io Error
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java.lang.Error java.io.IOError All Implemented
What Is Ioerror
Interfaces: Serializable public class IOErrorextends Error io error meaning Thrown when a serious I/O error has occurred. Since:
I O Error Definition
1.6 See Also:Serialized Form Constructor Summary IOError(Throwablecause) Constructs a new i/o error java instance of IOError with the specified cause. Method Summary Methods inherited from class java.lang.Throwable fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString Methods inherited from class java.lang.Object clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait Constructor Detail IOError public IOError(Throwablecause) Constructs a new instance of IOError with the specified cause. The IOError is created with the detail message of (cause==null ? null : cause.toString()) (which typically contains the class and detail message of cause). Parameters:cause - The cause of this error, or null if the cause is not known
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Io Error Android
up When might an IOError be thrown? up vote 21 down vote favorite 2 I have never seen a case when an IOError is thrown. The only thing that the docs say about IOError it this: Thrown when a serious I/O error http://docs.oracle.com/javase/6/docs/api/java/io/IOError.html has occurred. There aren't any subclasses or anything else obvious. Is there ever a case when IOError would be thrown in java? What might cause it? (This is not to be confused with IOException -- IOException is thrown in a wide range of cases, and is commonly used; I know that. I'm wondering about the less common IOError). java ioerror share|improve this question edited Mar 23 '15 at 3:59 JavaNut13 2,89632239 asked Mar 23 '15 at 2:50 Pokechu22 3,61971843 1 @Harvtronix The question http://stackoverflow.com/questions/29202584/when-might-an-ioerror-be-thrown is about IOError, not IOException. –takendarkk Mar 23 '15 at 2:57 @Harvtronix Yes, I linked to IOException initially. But I'm referring to IOError. Seems like people are mixing the two up? I may need to edit this for clarity (EDIT: I have made an edit addressing that) –Pokechu22 Mar 23 '15 at 2:58 Whoops! My bad. Sorry! –Harvtronix Mar 23 '15 at 2:58 1 The question is clear enough to me, but all three answers (one deleted) that have been posted seem to have misunderstood. –Wyzard Mar 23 '15 at 3:02 add a comment| 7 Answers 7 active oldest votes up vote 11 down vote accepted Console, Path#toAbsolutePath, and Path#toUri declare this particular exception to be thrown. Of course, that's a documentation fact and not an actual declaration; since Error is a runtime exception, declaring it to be thrown in the signature would have no meaning. From what it looks like in code, Console#readLine and Console#readPassword catch an IOException that results through its normal operation, then propagate that to an IOError. Essentially, IOError represents a critical failing of the underlying filesystem, or accessing some resource that ties Java to the file system. It's not thrown often, but it has the potential to be thrown if something serious happens from within the file system. share|improve this answer answered Mar 23 '15 at 3:07 Makoto 55k1065116 3 You can check the list of usages in the code. Inside the JDK I can only find Co
java.io.FileInputStream java.io.BufferedReader java.io.IOException org.apache.cassandra.db.IColumn java.io.FileOutputStream java.io.InputStream java.io.File Java Code Examples for java.io.IOError The following are top voted examples http://www.programcreek.com/java-api-examples/index.php?api=java.io.IOError for showing how to use java.io.IOError. These examples are extracted from open source projects. You can vote up the examples you like and your votes will be http://cafe.elharo.com/blogroll/undocumented-changes-in-java-6-mustang-ioerror/ used in our system to product more good examples. → Go to Official Java Doc + Save this class to your library Example 1 Project: tdq-studio-se File: o error IndicatorImpl.java View source code 6 votes /** * * Get MapDB by dbName * * @param dbName The name of DB(note that it is not the name of db file, one db file can contains many dbs and every * db have a name) * * @return null when MapDB can not be used java io error by current indicator * @exception when the DB colsed by abnormal way in last exit, then call this method will throws IOError */ public AbstractDB
new java.io.IOError class was added to Java 6. This is "Thrown when a serious I/O error has occurred." No further explanation is offered. This is not listed as a change in the JDK 6 documentation; and I haven't noticed this addition in any JSRs, though I could easily have missed one. Can anyone explain where this new class has come from and what is likely to cause it be thrown? After grepping through the source, it appears that this is used in exactly one class, java.io.Console; and there it's used purely to hide an IOException. i.e. the code looks like this: try { //... something that might throw an IOException } catch (IOException ex) { throw new IOError(ex); } This is wrong. There's nothing here that's so bad it justifies throwing an Error and shutting down the VM. There is nothing here that a reasonably written program could not plausibly recover from. The methods declared to throw IOError should be declared to throw IOException instead. It's possible that reasonably functioning program should never throw this error. In that case, this is the proper response: try { //... something that really shouldn't throw an IOException } catch (IOException ex) { throw new RuntimeException(ex, "This shouldn't happen"); } There's no reason to introduce a new class and throw an error here. If it's possible the exception might actually happen, and Sun doesn't want to do the right thing and declare that each one throws IOException, and Sun does want something a little more descriptive than athen they should define a new IORuntimeException instead. Errors should be reserved for truly nasty, unrecoverable conditions like stack overflows and running out of memory. I/O errors don't qualfiy. Oh, and if anyone at Sun is reading this can you please fix the comments' email address on http://download.java.net/jdk6/docs/guide/io/index.html? Mail sent to io@java.sun.com is bouncing. « Garmin Mapsource: When You Just Don't Care