reverted 64-bit/Dockerfile

kokoro/linux/64-bit/Dockerfile

diff --git a/kokoro/linux/64-bit/Dockerfile b/kokoro/linux/64-bit/Dockerfile
index fd51f1f..3a279e6 100644
--- a/kokoro/linux/64-bit/Dockerfile
+++ b/kokoro/linux/64-bit/Dockerfile
@@ -66,8 +66,6 @@
   openjdk-7-jdk \
   # -- For java_oracle7 -- \
   oracle-java7-installer \
-  # -- For java_linkage_monitor \
-  openjdk-8-jdk \
   # -- For python / python_cpp -- \
   python-setuptools \
   python-pip \

kokoro/linux/dockerfile/test/java/Dockerfile

diff --git a/kokoro/linux/dockerfile/test/java/Dockerfile b/kokoro/linux/dockerfile/test/java/Dockerfile
new file mode 100644
index 0000000..65accc4
--- /dev/null
+++ b/kokoro/linux/dockerfile/test/java/Dockerfile
@@ -0,0 +1,35 @@
+FROM debian:stretch
+
+# Install dependencies.  We start with the basic ones require to build protoc
+# and the C++ build
+RUN apt-get update && apt-get install -y \
+  autoconf \
+  autotools-dev \
+  build-essential \
+  bzip2 \
+  ccache \
+  curl \
+  gcc \
+  git \
+  libc6 \
+  libc6-dbg \
+  libc6-dev \
+  libgtest-dev \
+  libtool \
+  make \
+  parallel \
+  time \
+  wget \
+  && apt-get clean
+
+# Java dependencies
+RUN apt-get install -y \
+  # -- For all Java builds -- \
+  maven \
+  # -- For java_jdk7 -- \
+  #openjdk-7-jdk \
+  # -- For java_oracle7 -- \
+  #oracle-java7-installer \
+  # -- For java_linkage_monitor \
+  openjdk-8-jdk \
+  && apt-get clean