Occasionally the DrJava exe file displays an error message and says that "This application requires a Java Runtime Environment 1.5.0" even though JRE and JDK 6 are installed. Using the jar file instead is a work-around.
'I recently got a new computer so I had to redownload DrJava. it opened and was able to open files just fine but then I realized that I didn\'t have a compiler for it. So then, I went to the Java page and downloaded the latest JDK and JRE (6 update 20). After I downloaded and installed them, DrJava gives me an error message saying : This application requires a Java Runtime Environment 1.5.0. When I press \"OK\" I am sent to this page :http://java.com/en/download/index.jsp. I clicked download and I installed it. It still doesn\'t work. I use this version of DrJava:The current release of DrJava is drjava-stable-20090821-r5004.'