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. Struts , 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.