Axel Howind created PDFBOX-5758:
-----------------------------------
Summary: ExceptionInInitializerError when unmapping is not
supported
Key: PDFBOX-5758
URL: https://issues.apache.org/jira/browse/PDFBOX-5758
Project: PDFBox
Issue Type: Bug
Components: IO
Reporter: Axel Howind
When unmapping is not supported, PdfBox throws an ExceptionInInitializerError
that is not recoverable. The reason is that in IOUtils, the UNMAPPER static
field is initialized before the Logger is created and when the unmapper can not
be created, PdfBox tries to write an error message to the log:
{code:java}
public final class IOUtils
{
...
static
{
UNMAPPER = Optional.ofNullable(AccessController
.doPrivileged((PrivilegedAction<Consumer<ByteBuffer>>)
IOUtils::unmapper));
}
/**
* Log instance.
*/
private static final Logger LOG = LogManager.getLogger(IOUtils.class);
...
private static Consumer<ByteBuffer> unmapper()
{
final Lookup lookup = lookup();
try
{
...
}
catch (SecurityException se)
{
LOG.error(
"Unmapping is not supported because of missing permissions.
Please grant at least the following permissions:
RuntimePermission(\"accessClassInPackage.sun.misc\") "
+ " and ReflectPermission(\"suppressAccessChecks\")",
se);
}
catch (ReflectiveOperationException | RuntimeException e)
{
LOG.error("Unmapping is not supported.", e);
}
return null;
}{code}
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