diff --git a/src/main/java/istlab/KisoJikken/JExecutor.java b/src/main/java/istlab/KisoJikken/JExecutor.java
index 05c368d..45c0ad9 100644
--- a/src/main/java/istlab/KisoJikken/JExecutor.java
+++ b/src/main/java/istlab/KisoJikken/JExecutor.java
@@ -15,6 +15,7 @@
 
     /**
      * 引数はコマンドライン
+     * 
      * @param p
      * @param comlineOpt
      */
@@ -45,7 +46,7 @@
     public void run() {
         ArrayList<String> comlist = new ArrayList<String>();
         // comlist.add("java -D\"file.encoding=UTF-8\" ");
-        if (App.isWindows){
+        if (App.isWindows) {
             comlist.add("wt");
         } else {
 
@@ -61,25 +62,28 @@
 
         ProcessBuilder processBuilder = new ProcessBuilder(comlist);
         processBuilder.redirectErrorStream(true);
-        JTAConsole con = new JTAConsole("(Exec) java " + pkgname + "." + javafname + " " + commandLineOption);
-        con.setMainSrcByFileName(absolutePath);
-        con.Systemoutprintln("=== 実行開始 ===");
-        con.Systemoutprintln(CommandRunner.prompt+"cd ~" + App.nwpsrc);
-        con.Systemoutprintln(CommandRunner.prompt+"java " + pkgname + "." + javafname + " " + commandLineOption);
+        JTAConsole con = null;
+        if (!App.isWindows) {
+            con = new JTAConsole("(Exec) java " + pkgname + "." + javafname + " " + commandLineOption);
+            con.setMainSrcByFileName(absolutePath);
+            con.Systemoutprintln("=== 実行開始 ===");
+            con.Systemoutprintln(CommandRunner.prompt + "cd ~" + App.nwpsrc);
+            con.Systemoutprintln(CommandRunner.prompt + "java " + pkgname + "." + javafname + " " + commandLineOption);
+        }
         // ProcessBuilder processBuilder = new ProcessBuilder("pwd");
         processBuilder.directory(new File(App.userhome + App.nwpsrc));
         // processBuilder.inheritIO();
         try {
             process = processBuilder.start();
-            Launcher.allProcs.add(process);
-            if (!App.isWindows) con.startBR(process);
+            if (!App.isWindows) {
+                Launcher.allProcs.add(process);
+                con.startBR(process);
+            }
             // process.waitFor();
-
         } catch (IOException e1) {
             e1.printStackTrace();
         }
-
-        con.Systemoutprintln("=== 実行終了 ===  (ALT+Wで閉じる)");
+        if (con != null) con.Systemoutprintln("=== 実行終了 ===  (ALT+Wで閉じる)");
         thread = null;
     }
 }