Invoke jar.exe with full path in install-dev.bat.

Author: Sun Rui

R/install-dev.bat

@@ -28,5 +28,5 @@ R.exe CMD INSTALL --library="%SPARK_HOME%\R\lib"  %SPARK_HOME%\R\pkg\
 
 rem Zip the SparkR package so that it can be distributed to worker nodes on YARN
 pushd %SPARK_HOME%\R\lib
-jar cfM "%SPARK_HOME%\R\lib\sparkr.zip" SparkR
+%JAVA_HOME%\bin\jar.exe cfM "%SPARK_HOME%\R\lib\sparkr.zip" SparkR
 popd