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    <p>The implementation of global and local references was completely overhauled in ICS, with intention to improve memory management on the Java side. Find the explanation in <a href="http://developer.android.com/guide/practices/jni.html" rel="nofollow noreferrer">developers guide</a> Read more in the <a href="http://android-developers.blogspot.com/2011/11/jni-local-reference-changes-in-ics.html" rel="nofollow noreferrer">developers blog</a>.</p> <p>In the nutshell, whatever you receive in a JNI function, including the <code>globalRef</code> parameter of <code>freeNativeBuffer()</code> function, are <strong>local references</strong>. You can create and keep a global reference in your C code, like this:</p> <pre><code>static jobject globalRef; allocNativeBuffer(JNIEnv* env, jobject cls, jlong size) { void* buffer = malloc(size); jobject directBuffer = env-&gt;NewDirectByteBuffer(buffer, size); globalRef = env-&gt;NewGlobalRef(directBuffer); return directBuffer; } freeNativeBuffer(JNIEnv* env, jobject cls, jobject localRef) { void *buffer = env-&gt;GetDirectBufferAddress(localRef); if (buffer == env-&gt;GetDirectBufferAddress(globalRef) { /* we received the object that we saved */ env-&gt;DeleteGlobalRef(globalRef); free(buffer); } } </code></pre> <p><strong>PS</strong> I found the <a href="https://stackoverflow.com/questions/5060307/bytebuffer-not-releasing-memory">stackoverflow discussion</a> which looks like the inspiration for your experiment. See the <a href="https://stackoverflow.com/questions/5060307/bytebuffer-not-releasing-memory#9891217">answer</a> which explains that there was no need to create and delete global references in the first place.</p>
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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