Fix NullPointerException around getObjectInfo.

import android.os.Bundle;

import android.os.Process;

import android.provider.DocumentsContract;

import android.util.Log;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Date;

import java.util.LinkedList;

    private static MtpObjectInfo[] loadDocuments(MtpManager manager, int deviceId, int[] handles)

            throws IOException {

        final MtpObjectInfo[] objectInfos = new MtpObjectInfo[handles.length];

        final ArrayList<MtpObjectInfo> objects = new ArrayList<>();

        for (int i = 0; i < handles.length; i++) {

            objectInfos[i] = manager.getObjectInfo(deviceId, handles[i]);

            final MtpObjectInfo info = manager.getObjectInfo(deviceId, handles[i]);

            if (info == null) {

                Log.e(MtpDocumentsProvider.TAG,

                        "Failed to obtain object info handle=" + handles[i]);

                continue;

            }

        return objectInfos;

            objects.add(info);

        }

        return objects.toArray(new MtpObjectInfo[objects.size()]);

    }

    synchronized Cursor queryChildDocuments(String[] columnNames, Identifier parent)