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// Check that NullPointerExceptions thrown from library code are
// caught. This detects a number of failures that can be caused by
// libgcj being built incorrectly. In particular, we ensure that a
// SEGV in native (i.e. C++) code in libgcj is handled correctly.
// Regrettably, we cannot guarantee that Double.parseDouble() will
// always be native code, or that it will never be inlined. It could
// be argued that we should add a method to libgcj that will be
// guaranteed forever to be native, but I'm reluctant to add to the
// library for the sole purpose of performing this test.
public class Throw_2
{
public static Throwable obj()
{
return null;
}
public static String str()
{
return null;
}
static double d;
public static void main (String[] args)
{
// This NullPointerException will, at the time of writing, be
// thrown from Java code in libgcj.
try
{
java.util.Vector v = new java.util.Vector (null);
System.out.println ("fail: no exception thrown");
}
catch (NullPointerException _)
{
}
catch (Throwable _)
{
System.out.println ("fail: " + _);
}
// This one will, at the time of writing, be thrown from C++
// code in libgcj.
try
{
d = Double.parseDouble(str());
System.out.println ("fail: no exception thrown");
}
catch (NullPointerException _)
{
}
catch (Throwable _)
{
System.out.println ("fail: " + _);
}
}
}
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