handle corrupt files more gracefully

apps/netmonitor/java/src/net/i2p/netmonitor/PeerSummaryReader.java

@@ -33,6 +33,7 @@ class PeerSummaryReader {
         PeerSummary summary = null;
         String curDescription = null;
         List curArgs = null;
+        try {
             while ((line = reader.readLine()) != null) {
                 if (line.startsWith("peer\t")) {
                     String name = line.substring("peer\t".length()).trim();
@@ -83,7 +84,10 @@ class PeerSummaryReader {
                     }
                 }
             }
-        
+        } catch (Exception e) {
+            _log.error("Error handling the data", e);
+            throw new IOException("Error parsing the data");
+        } 
         if (summary == null)
             return;
         summary.coallesceData(monitor.getSummaryDurationHours() * 60*60*1000);