| It is the most widely used Web development platform in the world. The barrier to entry is really low. | It is used in broader areas and barrier is higher than PHP. |
| For this need Server as (typically Apache). | For this need server as Apache Tomcat or JBoss or WebSphere, WebLogic etc. |
| Immediate feedback and greater productivity as coding less and fast development and execution. | As more coding than PHP need little more time than PHP. |
| PHP hosting is extraordinarily cheap. | JSP hosting is not much costly than PHP. |
| Statically typed. Now I don't consider this a "win" against dynamic typing, they're just different. But the fact is that if you mistype a variable name in Java it'll not throw any error and will generate a new variable. | Statically typed. Now I don't consider this a "win" against dynamic typing, they're just different. But the fact is that if you mistype a variable name in Java it'll generate a compiler error. |
| Less libraries compare to JSP. | There are a huge amount of third party libraries for Java Web development out there. |
| Less robust compare to JSP. | IMHO the modern Java Web development approach using, say, Spring (or other IoC container) is extremely robust. |
| Multithreaded and background processing are somewhat kludgy in PHP. | Multithreaded and background processing are far more natural in Java. |
| PHP does not allow you to define custom tags. | JSP allow you to define custom tags that can be quite powerful. |
