JD Edwards EnterpriseOne 9.0 Web server could not found Error

500 Internal Server Error
OracleJSP: oracle.jsp.provider.JspCompileException:
Errors compiling:C:\E900\system\OC4J\j2ee\home\application-deployments\webclient\webclient\persistence\_pages\_share\_html4login.java
Registry key 'Software\JavaSoft\Java Runtime Environment\CurrentVersion'
has value '1.6', but '1.5' is required.
Error: could not find java.dll
Error: could not find Java 2 Runtime Environment.