jaxrs-api-2.1/src/main/java/javax/ws/rs/ext/FactoryFinder.java
jsr339-api-rc3/src/main/java/javax/ws/rs/ext/FactoryFinder.java

jaxrs-api-2.1/src/main/java/javax/ws/rs/client/FactoryFinder.java
jsr339-api-rc3/src/main/java/javax/ws/rs/ext/FactoryFinder.java