hg: jdk9/sandbox/langtools: 8175304: JShell tool: The /reset command hangs after setting a startup script

[chris.hegarty at oracle.com]

Changeset: 099bb085017a
Author:    rfield
Date:      2017-03-06 08:57 -0800
URL:       http://hg.openjdk.java.net/jdk9/sandbox/langtools/rev/099bb085017a

8175304: JShell tool: The /reset command hangs after setting a startup script
Reviewed-by: jlahoda

! src/jdk.jshell/share/classes/jdk/internal/jshell/tool/JShellTool.java
! test/jdk/jshell/ToolBasicTest.java