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import java.util.Vector;
/**
* Under JavaSoft's VM they arbitarily limit the amount of memory
* a Java application can use (though this can be overridden). The
* point here is to check to see whether or not an application being
* run by Japhar will ever get the OutOfMemoryError or not when resources
* are scarce. --brian
*/
public class OutOfMemoryErrorTest
{
public static void main(String[] argv)
{
Vector v = null;
Runtime r = null;
long free = 0, total = 0;
// quickly approach memory limit 1M at a time
try {
r = Runtime.getRuntime();
v = new Vector();
while(true)
{
v.addElement(new byte[1048576]);
}
}
// out of memory error
catch (OutOfMemoryError oomerr1)
{
// slowly encroach on memory limit 2 bytes+ at a time
try {
while(true)
{
v.addElement(new byte[2]);
}
}
// out of memory error
catch (OutOfMemoryError oomerr2)
{
if (r != null)
{
free = r.freeMemory();
total = r.totalMemory();
v = null;
r.gc();
// System.out.println("free = " + free);
// System.out.println("total = " + total);
System.out.println("PASSED: ");
}
else
System.out.println("FAILED: runtime unknown");
}
}
// generic error
catch (Error err)
{
System.out.println("FAILED: unexpected error");
}
// generic exception
catch (Exception e)
{
System.out.println("FAILED: unexpected exception");
}
}
}
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