Big findbugs cleanup

apps/addressbook/java/src/addressbook/ConfigParser.java

apps/addressbook/java/src/addressbook/Daemon.java

apps/addressbook/java/src/addressbook/Log.java

apps/i2ptunnel/java/src/net/i2p/i2ptunnel/I2PTunnel.java

...unnel/java/src/net/i2p/i2ptunnel/I2PTunnelClientBase.java

...i2ptunnel/java/src/net/i2p/i2ptunnel/I2PTunnelRunner.java

...i2ptunnel/java/src/net/i2p/i2ptunnel/I2PTunnelServer.java

...ming/java/src/net/i2p/client/streaming/I2PSocketImpl.java

...src/net/i2p/client/streaming/I2PSocketManagerFactory.java

...g/java/src/net/i2p/client/streaming/StreamSinkClient.java

...terconsole/java/src/net/i2p/router/web/ReseedHandler.java

...rconsole/java/src/net/i2p/router/web/SummaryListener.java

...src/net/i2p/client/streaming/ConnectionPacketHandler.java

...eaming/java/src/net/i2p/client/streaming/PacketLocal.java

...g/java/src/net/i2p/client/streaming/SchedulerClosing.java

apps/susidns/src/java/src/i2p/susi/dns/AddressbookBean.java

apps/susidns/src/java/src/i2p/susi/dns/ConfigBean.java

.../susidns/src/java/src/i2p/susi/dns/SubscriptionsBean.java

apps/susimail/src/src/i2p/susi/util/Config.java

apps/susimail/src/src/i2p/susi/webmail/MailCache.java