Question: Hi I have date\_time column as "Factor" type which is having mixed date\_time as below. How to change these informats to R datetime format

```
date_time                  R_date_time
01-Apr-2017 12:00:00       2017-04-01 12:00:00 
02/04/2017  03:00:00       2017-04-02 03:00:00 
30/05/2017  06:15:00       2017-05-30 06:15:00
2/4/2017    05:18:00       2017-04-02 05:18:00
2017/12/31  20:30:00       2017-12-31 20:30:00

```

Answer: 
I have gotten the same error accessing a web service from a Java agent. In FP8+ another grant seems to be required in the `java.policy` or `java.pol` file:

```
   permission java.io.FilePermission "${java.home}/lib/-", "read";  

```

The `jaxws-tubes-default.xml` file is located in the `resources.jar` file in the lib folder. 

For my web service to be accessed from a Java agent on the domino server I now have a java.pol file with the following:

```
grant {
   permission java.lang.RuntimePermission "getClassLoader";
   permission java.lang.RuntimePermission "setContextClassLoader";
   permission java.lang.reflect.ReflectPermission "suppressAccessChecks";
   permission java.io.FilePermission "${java.home}/lib/-", "read";  
};

```
Check the java.policy or java.pol file on the working FP7 server. Upgrades regularly overwrite java.policy and, on occasion, have been known to remove that file. If it's security-related, the server's Java policy must be different.