Testsuite:JawsSecurity in javaws
Test name(s):JawsSecurityScenarios/testIllegalArgExecution_Browser.html
Product(s) tested:Jre9b124/64bit
OS/architecture:Ubuntu16.04-x64

Reproducible: Always
Reproducible on machine:egtc

Is it a Regression:
[If Regression] Regression introduced in release/build:

Test result on the last GAed release for this train:

[if Fail] Test result on FCS:

Is it a platform specific issue:

Steps:
1.Clear cache: javaws -uninstall
2.Launch the test case by browser.(Input the url into browser's address area and press Enter. And then select javaws to launch it if necessary).
3.http://127.0.0.1:8080/JawsSecurity/jnlp/testIllegalArg.jnlp
4.Accept the signed security warning dialog
5.Make sure application with title "Hello" gets launched and "PASS!!!" is printed out inside the application

The actual result:
At step3,the applet can not be launched fine.we tried to select files to find javaws in select applciation dialog,but it can not be selected.Please refer to 2.png.