Please execute 'java -XshowSettings:all' on a command prompt.
The example of my environment.
Code:
C:\Documents and Settings\root>java -XshowSettings:all
VM settings:
Max. Heap Size (Estimated): 239.75M
Ergonomics Machine Class: client
Using VM: Java HotSpot(TM) Client VM
Property settings:
:
### java.home = C:\Win32app\Java\jre8
:
java.runtime.name = Java(TM) SE Runtime Environment
### java.runtime.version = 1.8.0-ea-b86
java.specification.name = Java Platform API Specification
java.specification.vendor = Oracle Corporation
java.specification.version = 1.8
java.vendor = Oracle Corporation
java.vendor.url = http://java.oracle.com/
java.vendor.url.bug = http://bugreport.sun.com/bugreport/
### java.version = 1.8.0-ea
java.vm.info = mixed mode
java.vm.name = Java HotSpot(TM) Client VM
java.vm.specification.name = Java Virtual Machine Specification
java.vm.specification.vendor = Oracle Corporation
### java.vm.specification.version = 1.8
java.vm.vendor = Oracle Corporation
java.vm.version = 25.0-b28
line.separator = \r \n
### os.arch = x86
os.name = Windows XP
os.version = 5.1
path.separator = ;
### sun.arch.data.model = 32
### sun.boot.class.path = C:\Win32app\Java\jre8\lib\resources.jar
C:\Win32app\Java\jre8\lib\rt.jar
C:\Win32app\Java\jre8\lib\sunrsasign.jar
C:\Win32app\Java\jre8\lib\jsse.jar
C:\Win32app\Java\jre8\lib\jce.jar
C:\Win32app\Java\jre8\lib\charsets.jar
C:\Win32app\Java\jre8\lib\jfr.jar
C:\Win32app\Java\jre8\classes
### sun.boot.library.path = C:\Win32app\Java\jre8\bin
Please check '###' marked lines.
I think that two or more java.exe(s) are in PC.
After performing UNINSTALL of JAVA and erasing a file until it becomes impossible to perform java.exe by a command prompt, I recommend you to install JAVA.
If the BAT file which I presented is copy&past and performed, it may help to find the place where JAVA exists.
Until all lines not displayed version of JAVA, please uninstall JAVA and delete a file.
And install new JDK1.7 and copy JCE7. (not install JRE7)