Can't install some R package on Ubuntu 15.04

Please can you help me, I am trying to install these packages in R and my OS is linux ubuntu 15.04

devtools
rjava

      

        
        
        
      

    

but i get some error like when i install devtools

Warning in install.packages :
  installation of package ‘git2r’ had non-zero exit status
Warning in install.packages :
  installation of package ‘devtools’ had non-zero exit status
and when i install rjava


checking for gcc... gcc -std=gnu99
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc -std=gnu99 accepts -g... yes
checking for gcc -std=gnu99 option to accept ISO C89... none needed
checking how to run the C preprocessor... gcc -std=gnu99 -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
checking for sys/wait.h that is POSIX.1 compatible... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for string.h... (cached) yes
checking sys/time.h usability... yes
checking sys/time.h presence... yes
checking for sys/time.h... yes
checking for unistd.h... (cached) yes
checking for an ANSI C-conforming const... yes
checking whether time.h and sys/time.h may both be included... yes
configure: checking whether gcc -std=gnu99 supports static inline...
yes
checking whether setjmp.h is POSIX.1 compatible... yes
checking whether sigsetjmp is declared... yes
checking whether siglongjmp is declared... yes
checking Java support in R... present:
interpreter : '/usr/bin/java'
archiver    : '/usr/bin/jar'
compiler    : '/usr/bin/javac'
header prep.: '/usr/bin/javah'
cpp flags   : '-I/usr/lib/jvm/java-7-openjdk-i386/jre/../include'
java libs   : '-L/usr/lib/jvm/java-7-openjdk-i386/jre/lib/i386/client -ljvm'
checking whether Java run-time works... 
Picked up JAVA_TOOL_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar 
yes
checking whether -Xrs is supported... 
Picked up JAVA_TOOL_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar 
yes
checking whether JNI programs can be compiled... 
configure: error: Cannot compile a simple JNI program. See config.log for details.

Make sure you have Java Development Kit installed and correctly registered in R.
If in doubt, re-run "R CMD javareconf" as root.

ERROR: configuration failed for package ‘rJava’
* removing ‘/home/dave/R/i686-pc-linux-gnu-library/3.1/rJava’
Warning in install.packages :
  installation of package ‘rJava’ had non-zero exit status

The downloaded source packages are in
    ‘/tmp/Rtmp86RnJ1/downloaded_packages’

      

        
        
        
      

    

Of course, before asking this question, I found similar questions on this site, but these tips did not help me I used this

sudo apt-get build-dep libxml2-dev
sudo apt-get install r-cran-rjava

      

        
        
        
      

    

what should i do to install the required packages. This issue applies to other packages as well, such as jgr, deducer, rweka