63  private void writeStateDeprecated(StateImpl state, DataOutputStream out) throws IOException {
64       out.write(StateReader.STATE_CACHE_VERSION);
65       if (writePrefix(state, out))
66           return;
67       out.writeLong(state.getTimeStamp());
68       // write the platform property keys
69       String[] platformPropKeys = state.getPlatformPropertyKeys();
70       writePlatformProp(platformPropKeys, out);
71       Dictionary<Object, Object>[] propSet = state.getPlatformProperties();
72       out.writeInt(propSet.length);
73       for (int i = 0; i < propSet.length; i++) {
74          Dictionary<Object, Object> props = propSet[i];
75           out.writeInt(platformPropKeys.length);
76           for (int j = 0; j < platformPropKeys.length; j++)
77               writePlatformProp(props.get(platformPropKeys[j]), out);
78       }
79       BundleDescription[] bundles = state.getBundles();
80       StateHelperImpl.getInstance().sortBundles(bundles);
81       out.writeInt(bundles.length);
82       if (bundles.length == 0)
83           return;
84       for (int i = 0; i < bundles.length; i++)
85           writeBundleDescription(bundles[i], out, false);
86     out.writeBoolean(state.isResolved());
87     // save the lazy data offset
88     out.writeInt(out.size());
89     for (int i = 0; i < bundles.length; i++)
90         writeBundleDescriptionLazyData(bundles[i], out);
91 }

150 private boolean readStateDeprecated(StateImpl state, DataInputStream in, long expectedTimestamp) throws IOException {
151     if (in.readByte() != STATE_CACHE_VERSION)
152         return false;
153     byte tag = readTag(in);
154     if (tag != OBJECT)
155         return false;
156     int index = in.readInt();
157     long timestampRead = in.readLong();
158     if (expectedTimestamp >= 0 && timestampRead != expectedTimestamp)
159         return false;
160     addToObjectTable(state, index);
161     // read the platform property keys
162     String[] platformPropKeys = (String[]) readPlatformProp(in);
163     state.addPlatformPropertyKeys(platformPropKeys);
164     int numSets = in.readInt();
165     Dictionary<?, ?>[] platformProps = new Dictionary[numSets];
166     for (int i = 0; i < numSets; i++) {
167         Hashtable<Object, Object> props = new Hashtable<Object, Object>(platformPropKeys.length);
168         int numProps = in.readInt();
169         for (int j = 0; j < numProps; j++) {
170             Object value = readPlatformProp(in);
171             if (value != null && j < platformPropKeys.length)
172                 props.put(platformPropKeys[j], value);
173         }
174         platformProps[i] = props;
175     }
176     state.setPlatformProperties(platformProps);
177     numBundles = in.readInt();
178     if (numBundles == 0)
179         return true;
180     for (int i = 0; i < numBundles; i++) {
181         BundleDescriptionImpl bundle = readBundleDescription(in);
182         state.basicAddBundle(bundle);
183         if (bundle.isResolved())
184             state.addResolvedBundle(bundle);
185     }
186     state.setTimeStamp(timestampRead);
187     state.setResolved(in.readBoolean());
188     in.readInt(); // skip past the old offset
189     if (lazyLoad)
190         return true;
191     for (int i = 0; i < numBundles; i++)
192         readBundleDescriptionLazyData(in, 0);
193     return true;
194 }

63  private void writeStateDeprecated(StateImpl state, DataOutputStream out) throws IOException {
...
68     // write the platform property keys
69     String[] platformPropKeys = getPlatformPropertyKeys(state);
70     writePlatformProp(platformPropKeys, out);
...
91  }

    private String[] getPlatformPropertyKeys(StateImpl state) {
        List<String> toReturn = new ArrayList<String>();

        // get all the properties
        Dictionary[] props = state.getPlatformProperties();
        if (props != null && props.length > 0) {
            Enumeration keys = props[0].keys();
            while (keys.hasMoreElements()) {
                Object key = keys.nextElement();
                if (key != null) {
                    toReturn.add(String.valueOf(key));
                }
            }
        }

        return toReturn.toArray(new String[toReturn.size()]);
    }