Blackberry Java memory thing

Every time you mention a string literal, another object handle is created in flash memory. That includes innocent code like String something = ""; and int pos = address.indexOf("@");.

blackberry api gems

Class CollectionLock

java.lang.Object
|
+--net.rim.device.api.collection.CollectionLock
public final class CollectionLock
extends Object
Global collection lock object to prevent deadlocks when using collections.