Testing env: ubuntu 14, jre9 b92

Crystal created a test to cover JDK-8131978. In the test, it sends a request to servlet to set a custom cookie, then use default cookie handler to read all the cookies, then check if the custom cookie and JSESSIONID can be got.

On windows: both the custom cookie and JSESSIONID can be got. But on linux only the custom cookie can be got. See trace files below.

Windows: http://aurora-ds3.us.oracle.com:9502/runs/01138/1138879.ManualSubmit/1138879.ManualSubmit-1/html/javaws/JawsCookies/JawsCookiesTest_testCookieHandlerDefaultApplication.trace, you can see >>>> CookieHandler header value: JSESSIONID=1C9E1384D306AF9A6EB993B86BB8F6DC; MyTest=5
Linux: http://aurora-ds3.us.oracle.com:9502/runs/01163/1163937.ManualSubmit/1163937.ManualSubmit-1/html/javaws/JawsCookies/JawsCookiesTest_testCookieHandlerDefaultApplication.trace, you can only see >>>> CookieHandler header value: MyTest=5

Steps to reproduce:
- Download http://rehte.cn.oracle.com:8080/wshost/reproduce/8143294/apache-tomcat-6.0.26.zip, and unzip it
- Start tomcat
- Add http://127.0.0.1:8080 in ESL
- Launch http://127.0.0.1:8080/JawsCookies/jnlp/testCookieHandlerDefaultApplication.jnlp, check the trace file, if there is only CookieHandler header value: MyTest=5, no JSESSIONID in the same line, bug is reproduced.

Source code location: http://rehte.cn.oracle.com:8080/wshost/deploy_dev_webrev/test/functional/javaws/JawsCookies/src/CookieHandlerDefaultApplet.java