Improving system health diags

import org.junit.Assert;

import java.util.Date;

import java.util.List;

public class TestHelpers {

        DropBoxManager dropbox = (DropBoxManager) context.getSystemService(Context.DROPBOX_SERVICE);

        Assert.assertNotNull("Unable access the DropBoxManager service", dropbox);

        long timestamp = 0;

        long timestamp = System.currentTimeMillis() - 5 * 60000;

        DropBoxManager.Entry entry;

        int crashCount = 0;

        StringBuilder errorDetails = new StringBuilder();

        while (null != (entry = dropbox.getNextEntry(label, timestamp))) {

            String dropboxSnippet;

            try {

                dropboxSnippet = entry.getText(4096);

            } finally {

                entry.close();

            }

            crashCount++;

            errorDetails.append(label);

            timestamp = entry.getTimeMillis();

            errorDetails.append(new Date(timestamp));

            errorDetails.append(": ");

            errorDetails.append(entry.getTag());

            errorDetails.append(": ");

            errorDetails.append(truncateCrash(dropboxSnippet, 40));

            final String dropboxSnippet = entry.getText(4096);

            if (dropboxSnippet != null) errorDetails.append(truncateCrash(dropboxSnippet, 40));

            errorDetails.append("    ...\n");

            timestamp = entry.getTimeMillis();

            entry.close();

        }

        Assert.assertEquals(errorDetails.toString(), 0, crashCount);

        return crashCount > 0 ? errorDetails.toString() : null;

        return errorDetails.length() != 0 ? errorDetails.toString() : null;

    }

    public static String getSystemHealthMessage(Context context) {

            StringBuilder errors = new StringBuilder();

            final String[] labels = {

                    "system_app_anr",

                    "system_app_crash",

                    "system_app_native_crash",

                    "system_app_wtf",

                    "system_server_anr",

                    "system_server_crash",

                    "system_server_native_crash",

                    "system_server_anr",

                    "system_server_watchdog",

                    "system_server_wtf",

            };

            for (String label : labels) {