Java is a mature yet progressive language. There are many frameworks of Java which make it more useful. With a strong community, Java has a bright future.
To find the best Java development company you need to see their experience and work on that technology. We have build 150+ web apps and delivering excellence from past 14 years.
If you are planning to hire Java developers and have a budget constraint, then it is better to go for a mid scale Indian Java development company. We are an Indian PHP web development company with more than a decade experience delivering excellence to Global clients.
There are many frameworks for Java. As a quite established language, some of them are a bit old as well. Straus, Spring, Spark are some of the top frameworks. However, if you are planning to hire Java developers with knowledge of the best framework then Spring is the one.