RFR(XS) 8218029 [TESTBUG] Use -Djava.class.path= to specify empty -cp in CDS tests

[Calvin Cheung]

Hi Ioi,

The fix looks fine but I'm not sure if it is necessary.

I've tried the following on linux and windows and the java.class.path 
property is not set.

java -cp "" MyApp

MyApp just display all system properties as follows:

         Properties properties = System.getProperties();

         properties.forEach((k, v) -> System.out.println(k + ":" + v));

thanks,
Calvin

On 1/29/19, 7:51 PM, Ioi Lam wrote:
> https://bugs.openjdk.java.net/browse/JDK-8218029
> http://cr.openjdk.java.net/~iklam/jdk13/8218029-testbug-empty-classpath.v01/ 
>
>
> Please review this simple fix. For portability,
>
>      "-cp", "\"\"",
>
> in the JVM command-line is replaced with
>
>      "-Djava.class.path="
>
>
> Thanks!
>
> Ioi
>