more misc. findbugs

...ng/java/src/net/i2p/client/streaming/I2PSocketEepGet.java

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

...sole/java/src/net/i2p/router/web/PluginUpdateChecker.java

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

core/java/src/gnu/crypto/prng/AsyncFortunaStandalone.java

core/java/src/net/i2p/time/Timestamper.java