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POWriteAbortedException Java
 

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  1. POWriteAbortedException Java
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    <p>I have the following method. The purpose of this method is to retrieve from the cache the stored arraylist.</p> <pre><code> public ArrayList&lt;T&gt; read_arraylist_from_cache(File name){ FileInputStream fis; ArrayList&lt;T&gt; returnlist = null; try { fis = new FileInputStream(name); ObjectInputStream ois = new ObjectInputStream(fis); //here I take the exception returnlist = (ArrayList&lt;T&gt;) ois.readObject(); ois.close(); } catch (Exception e) { Log.d("Cannot retrieve the arraylist from the cache", "Cannot retrieve the arraylist from the cache", e); e.getStackTrace(); } return returnlist; } </code></pre> <p>However when I'm trying to cast to ArrayList I'm taking a WriteAbortedException. The ArrayList that I'm passing to aforementioned class is the following one:</p> <pre><code> ArrayList &lt;Product&gt; </code></pre> <p>Where the product pojo is:</p> <pre><code> public class Products implements Serializable{ @JsonProperty private String prodnum; @JsonProperty private String brand; //get,set } </code></pre> <p>The method that I'm using in order to store the arraylist to the cache is the following</p> <pre><code> public void write_to_byte_array(ArrayList&lt;T&gt; list,File file){ // write to byte array FileOutputStream fos = null; try { fos = new FileOutputStream(file); } catch (FileNotFoundException e1) { Log.d("file not found", "file not found", e1); } ObjectOutputStream oos = null; try { oos = new ObjectOutputStream(fos); } catch (Exception e1) { Log.d("Create ObjectOutputStream object", "Create ObjectOutputStream object", e1); } try { oos.writeObject(list); } catch (IOException e1) { Log.d("Write ObjectOutputStream object to file", "Write ObjectOutputStream object to file", e1); } try { oos.close(); } catch (IOException e1) { Log.d("Close the connection with the file", "Close the connection with the file", e1); } } </code></pre> <p>The arratList list that I pass to the aforementioned method is an </p> <pre><code> ArrayList&lt;Products&gt; </code></pre> <p>again, and the file is the same as the file that I wrote before. However I can't understand what I'm doing wrong. Can anyone help me?</p>
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    1. USNick Robertson
    1. USNick Robertson
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    1. COWhy do you have a method called write_to_byte_array() that writes to a file?
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    2. COTo write the arrylist to the cache. The title that I gave is not correct. So, I use the write... to write the arrylist to the file and the read... to read the arraylist from the file
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    3. COI can see what it does. The point is that the title is indeed incorrect. Method names should reflect purpose, not implementation.
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