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POException StreamCorruptedException: invalid type code: AC
 

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  1. POException StreamCorruptedException: invalid type code: AC
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    <p>I want to serialize a same object on file, each time when i run a program. This is a simple algorithm to explain my problem.</p> <p>In the begening i store a <code>String</code> on <code>writer</code>. in the last i read a file. The goal of this program is if i run my program X time, i store and i print on screen X time my object.</p> <pre><code>class ReadFile { static ObjectOutputStream writer = null; public static void main(String[] args) throws IOException, ClassNotFoundException { writer = new ObjectOutputStream(new FileOutputStream("trace", true)); store("String"); if (writer != null) { writer.close(); } open("file.tmp"); } static public void store(String chaine) { if (writer == null) { return; } try { writer.writeObject(chaine); } catch (IOException ex) { } } static public void open(String file) throws FileNotFoundException, IOException, ClassNotFoundException { StringBuilder str = new StringBuilder(); ObjectInputStream objs; try { objs = new ObjectInputStream(new FileInputStream(file)); try { while (true) { Object obj = objs.readObject(); str.append(obj.toString()); } } catch (EOFException ex) { } objs.close(); } catch (Exception ex) { ex.printStackTrace(System.err); } } } </code></pre> <p>When i run this program i have this error :</p> <pre><code>java.io.StreamCorruptedException: invalid type code: AC at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1355) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350) at ReadFile.open(ReadFile.java:47) at ReadFile.main(ReadFile.java:35) </code></pre> <p>What can i do please ?</p>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
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    1. USJBert
    1. USMehdi
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    1. This table or related slice is empty.
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    1. CORather than catching exceptions and just discarding them, you should inspect them and see if they contain anything useful that may point to the problem. Also, which is line 35 of this code?
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      1. POException StreamCorruptedException: invalid type code: AC
      1. USDaveRlz
    2. COLine 35 is : `open("file.tmp");`
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      1. POException StreamCorruptedException: invalid type code: AC
      1. USMehdi
 

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