Error when checking Java version: could not find java.dll

Question

why do I get this? How can I fix it?

C:\\Users\\ash>java version
Error: Registry key \'Software\\JavaSoft\\Java Runtime Environment\'\\Cu         


        

Answer 1

Problem: We had the same problem in our Windows 2012 server. We used JAVA_HOME environmental system variable, an we used in the PATH this kind of settings: ...%JAVA_HOME%/bin;... and no other java related settings was in the PATH.

The problem was we had a space at the end of the value of the JAVA_HOME variable. Like 'C:\Program Files\Java\Jdk 1.8.0_172 ' so the %JAVA_HOME%/bin meant 'C:\Program Files\Java\Jdk 1.8.0_172 \bin'. So because the value was split by space and the system tried to find java.exe at 'C:\Program Files\Java\Jdk 1.8.0_172' where it is obviously not.

Solution was: Delete the space from the end of value of the JAVA_HOME !