JRuby in 1.8 mode doesn't support Array as first argument for Kernel.exec

Fixes #4586

1 files changed, 5 insertions, 1 deletions

diff --git a/lib/bundler/cli/exec.rb b/lib/bundler/cli/exec.rb
index f8cd35b140..f0ce450959 100644
--- a/lib/bundler/cli/exec.rb
+++ b/lib/bundler/cli/exec.rb
@@ -25,7 +25,11 @@ module Bundler
       if bin_path = Bundler.which(cmd)
         return kernel_load(bin_path, *args) if ruby_shebang?(bin_path)
         # First, try to exec directly to something in PATH
-        kernel_exec([bin_path, cmd], *args)
+        if Bundler.current_ruby.jruby_18?
+          kernel_exec(bin_path, *args)
+        else
+          kernel_exec([bin_path, cmd], *args)
+        end
       else
         # exec using the given command
         kernel_exec(cmd, *args)