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LUCENE-6791: sketchy MockFileSystem reflection should be in AccessController block 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1702038 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Robert Muir 2015-09-09 15:33:02 +00:00
parent 5db80b0b90
commit 2489b18c86
1 changed files with 22 additions and 15 deletions
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37
lucene/test-framework/src/java/org/apache/lucene/mockfile/FilterFileChannel.java
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@ -26,6 +26,8 @@ import java.nio.channels.FileChannel;
import java.nio.channels.FileLock;
import java.nio.channels.ReadableByteChannel;
import java.nio.channels.WritableByteChannel;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Objects;
/**
@ -137,21 +139,26 @@ public class FilterFileChannel extends FileChannel {
@Override
protected void implCloseChannel() throws IOException {
// our only way to call delegate.implCloseChannel()
for (Class<?> clazz = delegate.getClass(); clazz != null; clazz = clazz.getSuperclass()) {
final Method method;
try {
method = clazz.getDeclaredMethod("implCloseChannel");
} catch (NoSuchMethodException e) {
continue;
AccessController.doPrivileged(new PrivilegedAction<Void>() {
@Override
public Void run() {
for (Class<?> clazz = delegate.getClass(); clazz != null; clazz = clazz.getSuperclass()) {
final Method method;
try {
method = clazz.getDeclaredMethod("implCloseChannel");
} catch (NoSuchMethodException e) {
continue;
}
try {
method.setAccessible(true);
method.invoke(delegate);
return null;
} catch (ReflectiveOperationException e) {
throw new IOError(e);
}
}
throw new AssertionError();
}
try {
method.setAccessible(true);
method.invoke(delegate);
return;
} catch (ReflectiveOperationException e) {
throw new IOError(e);
}
}
throw new AssertionError();
});
}
}