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POArrayList creation: (some object) cannot be stored in an array of type java.lang.Object[]
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  1. POArrayList creation: (some object) cannot be stored in an array of type java.lang.Object[]
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    copied!<p>Usually, the code block works perfect. On very rare occasions though, the "new ArrayList" throws an Exeption <strong>my.namespace.CacheEntry cannot be stored in an array of type java.lang.Object[]</strong>.</p> <p>Checking Google, someone else seemed to get this exception on an Acer A500 with 3.1 (which is the device I got it, too). I don't see any hit for this in generic Java or whatever, so may be some very very Honeycomb special case or even a VM bug?</p> <pre><code>private long expireCache(HashMap&lt;String, CacheEntry&gt; map) { long count = 0; // next line will sometimes throw the exception: ArrayList&lt;CacheEntry&gt; entries = new ArrayList&lt;CacheEntry&gt;(map.values()); Collections.sort(entries); </code></pre> <p>The CacheEntry class is quite regular, too:</p> <pre><code>final class CacheEntry implements Comparable&lt;CacheEntry&gt; { public File file; public Long time; CacheEntry(File cacheFile) { // retreive the lastModified only once, don't do heavy I/O for sorting, // keep it desynced from filesystem so nothing bad happens when the // file gets changed while sorting: file = cacheFile; time = cacheFile.lastModified(); } // "touch" the cached last modified time public void touch() { time = System.currentTimeMillis(); } // return the long comparable of last modified time public int compareTo(CacheEntry c) { return time.compareTo(c.time); } } </code></pre> <p>I don't see anything wrong with this code. Anyone?</p>
 

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