From 4f772f3511dfa3d968cfad10ac2939d5d6f7dc1c Mon Sep 17 00:00:00 2001
From: "Hatter Jiang@Pixelbook" <jht5945@gmail.com>
Date: Sun, 4 Aug 2019 23:00:08 +0800
Subject: [PATCH] use const

---
 src/jdk.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/jdk.rs b/src/jdk.rs
index fcdf5e5..648947d 100644
--- a/src/jdk.rs
+++ b/src/jdk.rs
@@ -23,6 +23,8 @@ const OPENJDK_MACOS: &str = "openjdk-osx";
 const JDK_LINUX: &str = "jdk-linux";
 const OPENJDK_LINUX: &str = "openjdk-linux";
 
+const MACOS_LIBEXEC_JAVAHOME: &str = "/usr/libexec/java_home";
+
 pub const LOCAL_JAVA_HOME_BASE_DIR: &str = ".jssp/jdks";
 
 pub fn get_java_home(version: &str) -> Option<String> {
@@ -68,7 +70,7 @@ pub fn get_macos_java_home(version: &str) -> Option<String> {
     if ! is_macos() {
         return None;
     }
-    let output = match Command::new("/usr/libexec/java_home").arg("-version").arg(version).output() {
+    let output = match Command::new(MACOS_LIBEXEC_JAVAHOME).arg("-version").arg(version).output() {
         Err(_) => return None,
         Ok(o) => o,
     };