Fix hackCanUseDictionaryFile.

Bug: 7169473

Change-Id: I575aaa350042af076a8da5756993cdae9e73422c

java/src/com/android/inputmethod/latin/BinaryDictionaryGetter.java

@@ -28,6 +28,7 @@ import android.util.Log;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
+import java.nio.BufferUnderflowException;
 import java.nio.ByteBuffer;
 import java.nio.channels.FileChannel;
 import java.util.ArrayList;
@@ -382,6 +383,8 @@ class BinaryDictionaryGetter {
             return false;
         } catch (NumberFormatException e) {
             return false;
+        } catch (BufferUnderflowException e) {
+            return false;
         } finally {
             if (inStream != null) {
                 try {