Merge "IllegalStateException if apex is unavailable."

import android.content.pm.PackageParser.PackageParserException;

import android.os.RemoteException;

import android.os.ServiceManager;

import android.os.ServiceManager.ServiceNotFoundException;

import android.util.Slog;

import com.android.internal.util.IndentingPrintWriter;

    private final Map<String, PackageInfo> mActivePackagesCache;

    ApexManager() {

        try {

            mApexService = IApexService.Stub.asInterface(

            ServiceManager.getService("apexservice"));

                ServiceManager.getServiceOrThrow("apexservice"));

        } catch (ServiceNotFoundException e) {

            throw new IllegalStateException("Required service apexservice not available");

        }

        mActivePackagesCache = populateActivePackagesCache();

    }