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| Code Block | ||
|---|---|---|
| ||
public final class Client {
public void doSomething(File file) {
final Lock lock = new ReentrantLock();
InputStream in = null;
try {
lock.lock();
InputStream in = new FileInputStream(file);
// Perform operations on the open file
lock.unlock();
} catch (FileNotFoundException fnfx) {
// Handle the exception
exception
} finally {
if (in != null) {
try {
in.close();
} catch (IOException x) {
// Handle exception
}
}
}
}
}
|
Note that the lock is still held, even when the doSomething() method returns.
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<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="0dc255237fa67f22-42755e9b-44554631-9677ade0-103a2af0ea5538b8527a8614"><ac:plain-text-body><![CDATA[ | [[MITRE 2009 | AA. Bibliography#MITRE 09]] | [CWE-883 | http://cwe.mitre.org/data/definitions/883.html] "Deadlock" | ]]></ac:plain-text-body></ac:structured-macro> |
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<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="8fd24b63b9dd0f53-23cda7e6-44724f3c-add88bb3-53dc0c6031bd559ef46c97f3"><ac:plain-text-body><![CDATA[ | [[API 2006 | AA. Bibliography#API 06]] | Class | ]]></ac:plain-text-body></ac:structured-macro> |
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