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| Code Block | ||
|---|---|---|
| ||
public class Hook {
public static void main(String[] args) {
try {
final InputStream in = new FileInputStream("file");
Runtime.getRuntime().addShutdownHook(new Thread() {
public void run() {
// Log shutdown and close all resources
in.close();
}
});
// ...
} catch (IOException x) {
// handle error
} catch (FileNotFoundException x) {
// handle error
}
}
}
|
The JVM can abort for external reasons, such as an external SIGKILL signal (UNIX) or the TerminateProcess call (Microsoft Windows), or memory corruption caused by native methods. Shutdown hooks may fail to execute as expected in such cases because the JVM cannot guarantee that they will be executed as intended.
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<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="3556e89c128c6b42-a2db6f5d-4e9d4362-a59ebf0e-3f44f2b17cbc9e25e24865ce"><ac:plain-text-body><![CDATA[ | [ISO/IEC TR 24772:2010 | http://www.aitcnet.org/isai/] | "Termination Strategy [REU]" | ]]></ac:plain-text-body></ac:structured-macro> |
CWE-705, "Incorrect Control Flow Scoping" |
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<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="2d93fde53b0577cd-387e4394-46e541fc-9c1397fe-a5fa9214bdc015af49a51962"><ac:plain-text-body><![CDATA[ | [[API 06 | AA. Bibliography#API 06]] | [Class Runtime | http://download.oracle.com/javase/6/docs/api/java/lang/Runtime.html] | ]]></ac:plain-text-body></ac:structured-macro> |
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="b083fe76fcdfafe7-658f1403-428e4c3b-b9a7b8b5-a1f5df4907b2d029831b71ac"><ac:plain-text-body><![CDATA[ | [[ISO/IEC TR 24772:2010 | AA. Bibliography#ISO/IEC TR 24772-2010]] | Section 6.46, "Termination Strategy [REU]" | ]]></ac:plain-text-body></ac:structured-macro> |
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