Fix failing RocksJava test compilation and add CI (#7769)

Summary:
* Fixes a Java test compilation issue on macOS
* Cleans up CircleCI RocksDBJava build config
* Adds CircleCI for RocksDBJava on MacOS
* Ensures backwards compatibility with older macOS via CircleCI
* Fixes RocksJava static builds ordering
* Adds missing RocksJava static builds to CircleCI for Mac and Linux
* Improves parallelism in RocksJava builds
* Reduces the size of the machines used for RocksJava CircleCI as they don't need to be so large (Saves credits)

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7769

Reviewed By: akankshamahajan15

Differential Revision: D25601293

Pulled By: pdillinger

fbshipit-source-id: 0a0bb9906f65438fe143487d78e37e1947364d08

.circleci/config.yml

@@ -34,10 +34,14 @@ commands:
             sudo launchctl limit maxfiles 1048576
 
   pre-steps:
+    parameters:
+      python-version:
+        default: "3.5.9"
+        type: string
     steps:
       - checkout
-      - run: pyenv install --skip-existing 3.5.9
+      - run: pyenv install --skip-existing <<parameters.python-version>>
-      - run: pyenv global 3.5.9
+      - run: pyenv global <<parameters.python-version>>
       - run:
           name: Setup Environment Variables
           command: |
@@ -46,6 +50,11 @@ commands:
             echo "export SKIP_FORMAT_BUCK_CHECKS=1" >> $BASH_ENV
             echo "export PRINT_PARALLEL_OUTPUTS=1" >> $BASH_ENV
 
+  pre-steps-macos:
+      steps:
+        - pre-steps:
+            python-version: "3.6.0"
+
   post-steps:
     steps:
       - slack/status: *notify-on-master-failure
@@ -96,24 +105,24 @@ executors:
 jobs:
   build-macos:
     macos:
-      xcode: 11.3.0
+      xcode: 9.4.1
     steps:
       - increase-max-open-files-on-macos
       - install-pyenv-on-macos
       - install-gflags-on-macos
-      - pre-steps
+      - pre-steps-macos
       - run: ulimit -S -n 1048576 && OPT=-DCIRCLECI make V=1 J=32 -j32 check | .circleci/cat_ignore_eagain
       - post-steps
 
   build-macos-cmake:
     macos:
-      xcode: 11.3.0
+      xcode: 9.4.1
     steps:
       - increase-max-open-files-on-macos
       - install-pyenv-on-macos
       - install-cmake-on-macos
       - install-gflags-on-macos
-      - pre-steps
+      - pre-steps-macos
       - run: ulimit -S -n 1048576 && (mkdir build && cd build && cmake -DWITH_GFLAGS=0 .. && make V=1 -j32) | .circleci/cat_ignore_eagain
       - post-steps
 
@@ -355,19 +364,96 @@ jobs:
   build-linux-java:
     machine:
       image: ubuntu-1604:202007-01
-    resource_class: 2xlarge
+    resource_class: large
+    environment:
+      JAVA_HOME: /usr/lib/jvm/java-1.8.0-openjdk-amd64
     steps:
       - pre-steps
       - install-gflags
       - run:
-          name: "Build RocksDBJava"
+          name: "Set Java Environment"
+          command: |
+            echo "JAVA_HOME=${JAVA_HOME}"
+            echo 'export PATH=$JAVA_HOME/bin:$PATH' >> $BASH_ENV
+            which java && java -version
+            which javac && javac -version
+      - run:
+          name: "Build RocksDBJava Shared Library"
+          command: make V=1 J=8 -j8 rocksdbjava | .circleci/cat_ignore_eagain
+      - run:
+          name: "Test RocksDBJava"
+          command: make V=1 J=8 -j8 jtest | .circleci/cat_ignore_eagain
+      - post-steps
+
+  build-linux-java-static:
+    machine:
+      image: ubuntu-1604:202007-01
+    resource_class: large
+    environment:
+      JAVA_HOME: /usr/lib/jvm/java-1.8.0-openjdk-amd64
+    steps:
+      - pre-steps
+      - install-gflags
+      - run:
+          name: "Set Java Environment"
+          command: |
+            echo "JAVA_HOME=${JAVA_HOME}"
+            echo 'export PATH=$JAVA_HOME/bin:$PATH' >> $BASH_ENV
+            which java && java -version
+            which javac && javac -version
+      - run:
+          name: "Build RocksDBJava Static Library"
+          command: make V=1 J=8 -j8 rocksdbjavastatic | .circleci/cat_ignore_eagain
+      - post-steps
+
+  build-macos-java:
+    macos:
+      xcode: 9.4.1
+    resource_class: medium
+    environment:
+      JAVA_HOME: /Library/Java/JavaVirtualMachines/jdk1.8.0_172.jdk/Contents/Home
+    steps:
+      - increase-max-open-files-on-macos
+      - install-pyenv-on-macos
+      - install-gflags-on-macos
+      - pre-steps-macos
+      - run:
+          name: "Set Java Environment"
+          command: |
+            echo "JAVA_HOME=${JAVA_HOME}"
+            echo 'export PATH=$JAVA_HOME/bin:$PATH' >> $BASH_ENV
+            which java && java -version
+            which javac && javac -version
+      - run:
+          name: "Build RocksDBJava Shared Library"
+          command: make V=1 J=8 -j8 rocksdbjava | .circleci/cat_ignore_eagain
+      - run:
+          name: "Test RocksDBJava"
+          command: make V=1 J=8 -j8 jtest | .circleci/cat_ignore_eagain
+      - post-steps
+
+  build-macos-java-static:
+    macos:
+      xcode: 9.4.1
+    resource_class: medium
+    environment:
+      JAVA_HOME: /Library/Java/JavaVirtualMachines/jdk1.8.0_172.jdk/Contents/Home
+    steps:
+      - increase-max-open-files-on-macos
+      - install-pyenv-on-macos
+      - install-gflags-on-macos
+      - install-cmake-on-macos
+      - pre-steps-macos
+      - run:
+          name: "Set Java Environment"
           command: |
-            export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-amd64
-            export PATH=$JAVA_HOME/bin:$PATH
             echo "JAVA_HOME=${JAVA_HOME}"
+            echo 'export PATH=$JAVA_HOME/bin:$PATH' >> $BASH_ENV
             which java && java -version
             which javac && javac -version
-            make V=1 J=32 -j32 rocksdbjava jtest | .circleci/cat_ignore_eagain
+      - run:
+          name: "Build RocksDBJava Static Library"
+          command: make V=1 J=8 -j8 rocksdbjavastatic | .circleci/cat_ignore_eagain
       - post-steps
 
   build-examples:
@@ -502,6 +588,9 @@ workflows:
   build-java:
     jobs:
       - build-linux-java
+      - build-linux-java-static
+      - build-macos-java
+      - build-macos-java-static
   build-examples:
     jobs:
       - build-examples

.circleci/vs2015_install.ps1

@@ -10,7 +10,7 @@ $process = Start-Process "${PWD}\vs_installer.exe" -ArgumentList $VS_INSTALL_ARG
 Remove-Item -Path vs_installer.exe -Force
 $exitCode = $process.ExitCode
 if (($exitCode -ne 0) -and ($exitCode -ne 3010)) {
-    echo "VS 2017 installer exited with code $exitCode, which should be one of [0, 3010]."
+    echo "VS 2015 installer exited with code $exitCode, which should be one of [0, 3010]."
     curl.exe --retry 3 -kL $COLLECT_DOWNLOAD_LINK --output Collect.exe
     if ($LASTEXITCODE -ne 0) {
         echo "Download of the VS Collect tool failed."

Makefile

@@ -99,14 +99,14 @@ endif
 
 ifneq ($(findstring rocksdbjava, $(MAKECMDGOALS)),)
 	LIB_MODE=shared
-        ifneq ($(findstring rocksdbjavastatic, $(MAKECMDGOALS)),)
+	ifneq ($(findstring rocksdbjavastatic, $(MAKECMDGOALS)),)
 		OBJ_DIR=jls
-	        ifneq ($(DEBUG_LEVEL),2)
+		ifneq ($(DEBUG_LEVEL),2)
-	            DEBUG_LEVEL=0
+			DEBUG_LEVEL=0
-                endif
+		endif
-                ifeq ($(MAKECMDGOALS),rocksdbjavastaticpublish)
+		ifeq ($(MAKECMDGOALS),rocksdbjavastaticpublish)
-	            DEBUG_LEVEL=0
+			DEBUG_LEVEL=0
-                endif
+		endif
 	else
 		OBJ_DIR=jl
 	endif
@@ -2123,78 +2123,78 @@ ifeq ($(PLATFORM), OS_AIX)
 	SNAPPY_MAKE_TARGET = libsnappy.la
 endif
 ifeq ($(PLATFORM), OS_OPENBSD)
-        JAVA_INCLUDE = -I$(JAVA_HOME)/include -I$(JAVA_HOME)/include/openbsd
+	JAVA_INCLUDE = -I$(JAVA_HOME)/include -I$(JAVA_HOME)/include/openbsd
 	ROCKSDBJNILIB = librocksdbjni-openbsd$(ARCH).so
-        ROCKSDB_JAR = rocksdbjni-$(ROCKSDB_JAVA_VERSION)-openbsd$(ARCH).jar
+	ROCKSDB_JAR = rocksdbjni-$(ROCKSDB_JAVA_VERSION)-openbsd$(ARCH).jar
 endif
 
-libz.a:
+zlib-$(ZLIB_VER).tar.gz:
-	-rm -rf zlib-$(ZLIB_VER)
-ifeq (,$(wildcard ./zlib-$(ZLIB_VER).tar.gz))
 	curl --fail --output zlib-$(ZLIB_VER).tar.gz --location ${ZLIB_DOWNLOAD_BASE}/zlib-$(ZLIB_VER).tar.gz
-endif
 	ZLIB_SHA256_ACTUAL=`$(SHA256_CMD) zlib-$(ZLIB_VER).tar.gz | cut -d ' ' -f 1`; \
 	if [ "$(ZLIB_SHA256)" != "$$ZLIB_SHA256_ACTUAL" ]; then \
 		echo zlib-$(ZLIB_VER).tar.gz checksum mismatch, expected=\"$(ZLIB_SHA256)\" actual=\"$$ZLIB_SHA256_ACTUAL\"; \
 		exit 1; \
 	fi
+
+libz.a: zlib-$(ZLIB_VER).tar.gz
+	-rm -rf zlib-$(ZLIB_VER)
 	tar xvzf zlib-$(ZLIB_VER).tar.gz
 	cd zlib-$(ZLIB_VER) && CFLAGS='-fPIC ${JAVA_STATIC_DEPS_CCFLAGS} ${EXTRA_CFLAGS}' LDFLAGS='${JAVA_STATIC_DEPS_LDFLAGS} ${EXTRA_LDFLAGS}' ./configure --static && $(MAKE)
 	cp zlib-$(ZLIB_VER)/libz.a .
 
-libbz2.a:
+bzip2-$(BZIP2_VER).tar.gz:
-	-rm -rf bzip2-$(BZIP2_VER)
-ifeq (,$(wildcard ./bzip2-$(BZIP2_VER).tar.gz))
 	curl --fail --output bzip2-$(BZIP2_VER).tar.gz --location ${CURL_SSL_OPTS} ${BZIP2_DOWNLOAD_BASE}/bzip2-$(BZIP2_VER).tar.gz
-endif
 	BZIP2_SHA256_ACTUAL=`$(SHA256_CMD) bzip2-$(BZIP2_VER).tar.gz | cut -d ' ' -f 1`; \
 	if [ "$(BZIP2_SHA256)" != "$$BZIP2_SHA256_ACTUAL" ]; then \
 		echo bzip2-$(BZIP2_VER).tar.gz checksum mismatch, expected=\"$(BZIP2_SHA256)\" actual=\"$$BZIP2_SHA256_ACTUAL\"; \
 		exit 1; \
 	fi
+
+libbz2.a: bzip2-$(BZIP2_VER).tar.gz
+	-rm -rf bzip2-$(BZIP2_VER)
 	tar xvzf bzip2-$(BZIP2_VER).tar.gz
 	cd bzip2-$(BZIP2_VER) && $(MAKE) CFLAGS='-fPIC -O2 -g -D_FILE_OFFSET_BITS=64 ${JAVA_STATIC_DEPS_CCFLAGS} ${EXTRA_CFLAGS}' LDFLAGS='${JAVA_STATIC_DEPS_LDFLAGS} ${EXTRA_LDFLAGS}' AR='ar ${EXTRA_ARFLAGS}'
 	cp bzip2-$(BZIP2_VER)/libbz2.a .
 
-libsnappy.a:
+snappy-$(SNAPPY_VER).tar.gz:
-	-rm -rf snappy-$(SNAPPY_VER)
-ifeq (,$(wildcard ./snappy-$(SNAPPY_VER).tar.gz))
 	curl --fail --output snappy-$(SNAPPY_VER).tar.gz --location ${CURL_SSL_OPTS} ${SNAPPY_DOWNLOAD_BASE}/$(SNAPPY_VER).tar.gz
-endif
 	SNAPPY_SHA256_ACTUAL=`$(SHA256_CMD) snappy-$(SNAPPY_VER).tar.gz | cut -d ' ' -f 1`; \
 	if [ "$(SNAPPY_SHA256)" != "$$SNAPPY_SHA256_ACTUAL" ]; then \
 		echo snappy-$(SNAPPY_VER).tar.gz checksum mismatch, expected=\"$(SNAPPY_SHA256)\" actual=\"$$SNAPPY_SHA256_ACTUAL\"; \
 		exit 1; \
 	fi
+
+libsnappy.a: snappy-$(SNAPPY_VER).tar.gz
+	-rm -rf snappy-$(SNAPPY_VER)
 	tar xvzf snappy-$(SNAPPY_VER).tar.gz
 	mkdir snappy-$(SNAPPY_VER)/build
 	cd snappy-$(SNAPPY_VER)/build && CFLAGS='${JAVA_STATIC_DEPS_CCFLAGS} ${EXTRA_CFLAGS}' CXXFLAGS='${JAVA_STATIC_DEPS_CXXFLAGS} ${EXTRA_CXXFLAGS}' LDFLAGS='${JAVA_STATIC_DEPS_LDFLAGS} ${EXTRA_LDFLAGS}' cmake -DCMAKE_POSITION_INDEPENDENT_CODE=ON ${PLATFORM_CMAKE_FLAGS} .. && $(MAKE) ${SNAPPY_MAKE_TARGET}
 	cp snappy-$(SNAPPY_VER)/build/libsnappy.a .
 
-liblz4.a:
+lz4-$(LZ4_VER).tar.gz:
-	-rm -rf lz4-$(LZ4_VER)
-ifeq (,$(wildcard ./lz4-$(LZ4_VER).tar.gz))
 	curl --fail --output lz4-$(LZ4_VER).tar.gz --location ${CURL_SSL_OPTS} ${LZ4_DOWNLOAD_BASE}/v$(LZ4_VER).tar.gz
-endif
 	LZ4_SHA256_ACTUAL=`$(SHA256_CMD) lz4-$(LZ4_VER).tar.gz | cut -d ' ' -f 1`; \
 	if [ "$(LZ4_SHA256)" != "$$LZ4_SHA256_ACTUAL" ]; then \
 		echo lz4-$(LZ4_VER).tar.gz checksum mismatch, expected=\"$(LZ4_SHA256)\" actual=\"$$LZ4_SHA256_ACTUAL\"; \
 		exit 1; \
 	fi
+
+liblz4.a: lz4-$(LZ4_VER).tar.gz
+	-rm -rf lz4-$(LZ4_VER)
 	tar xvzf lz4-$(LZ4_VER).tar.gz
 	cd lz4-$(LZ4_VER)/lib && $(MAKE) CFLAGS='-fPIC -O2 ${JAVA_STATIC_DEPS_CCFLAGS} ${EXTRA_CFLAGS}' LDFLAGS='${JAVA_STATIC_DEPS_LDFLAGS} ${EXTRA_LDFLAGS}' all
 	cp lz4-$(LZ4_VER)/lib/liblz4.a .
 
-libzstd.a:
+zstd-$(ZSTD_VER).tar.gz:
-	-rm -rf zstd-$(ZSTD_VER)
-ifeq (,$(wildcard ./zstd-$(ZSTD_VER).tar.gz))
 	curl --fail --output zstd-$(ZSTD_VER).tar.gz --location ${CURL_SSL_OPTS} ${ZSTD_DOWNLOAD_BASE}/v$(ZSTD_VER).tar.gz
-endif
 	ZSTD_SHA256_ACTUAL=`$(SHA256_CMD) zstd-$(ZSTD_VER).tar.gz | cut -d ' ' -f 1`; \
 	if [ "$(ZSTD_SHA256)" != "$$ZSTD_SHA256_ACTUAL" ]; then \
 		echo zstd-$(ZSTD_VER).tar.gz checksum mismatch, expected=\"$(ZSTD_SHA256)\" actual=\"$$ZSTD_SHA256_ACTUAL\"; \
 		exit 1; \
 	fi
+
+libzstd.a: zstd-$(ZSTD_VER).tar.gz
+	-rm -rf zstd-$(ZSTD_VER)
 	tar xvzf zstd-$(ZSTD_VER).tar.gz
 	cd zstd-$(ZSTD_VER)/lib && DESTDIR=. PREFIX= $(MAKE) CFLAGS='-fPIC -O2 ${JAVA_STATIC_DEPS_CCFLAGS} ${EXTRA_CFLAGS}' LDFLAGS='${JAVA_STATIC_DEPS_LDFLAGS} ${EXTRA_LDFLAGS}' libzstd.a
 	cp zstd-$(ZSTD_VER)/lib/libzstd.a .
@@ -2205,12 +2205,17 @@ JAVA_COMPRESSIONS = libz.a libbz2.a libsnappy.a liblz4.a libzstd.a
 endif
 
 JAVA_STATIC_FLAGS = -DZLIB -DBZIP2 -DSNAPPY -DLZ4 -DZSTD
-JAVA_STATIC_INCLUDES = -I./zlib-$(ZLIB_VER) -I./bzip2-$(BZIP2_VER) -I./snappy-$(SNAPPY_VER) -I./lz4-$(LZ4_VER)/lib -I./zstd-$(ZSTD_VER)/lib/include
+JAVA_STATIC_INCLUDES = -I./zlib-$(ZLIB_VER) -I./bzip2-$(BZIP2_VER) -I./snappy-$(SNAPPY_VER) -I./snappy-$(SNAPPY_VER)/build -I./lz4-$(LZ4_VER)/lib -I./zstd-$(ZSTD_VER)/lib -I./zstd-$(ZSTD_VER)/lib/dictBuilder
 ifneq ($(findstring rocksdbjavastatic, $(MAKECMDGOALS)),)
 CXXFLAGS += $(JAVA_STATIC_FLAGS) $(JAVA_STATIC_INCLUDES)
 CFLAGS +=  $(JAVA_STATIC_FLAGS) $(JAVA_STATIC_INCLUDES)
 endif
-rocksdbjavastatic: $(LIB_OBJECTS) $(JAVA_COMPRESSIONS)
+rocksdbjavastatic:
+ifeq ($(JAVA_HOME),)
+	$(error JAVA_HOME is not set)
+endif
+	$(MAKE) rocksdbjavastatic_deps
+	$(MAKE) rocksdbjavastatic_libobjects
 	cd java;$(MAKE) javalib;
 	rm -f ./java/target/$(ROCKSDBJNILIB)
 	$(CXX) $(CXXFLAGS) -I./java/. $(JAVA_INCLUDE) -shared -fPIC \
@@ -2229,6 +2234,10 @@ rocksdbjavastatic: $(LIB_OBJECTS) $(JAVA_COMPRESSIONS)
 	openssl sha1 java/target/$(ROCKSDB_JAVADOCS_JAR) | sed 's/.*= \([0-9a-f]*\)/\1/' > java/target/$(ROCKSDB_JAVADOCS_JAR).sha1
 	openssl sha1 java/target/$(ROCKSDB_SOURCES_JAR) | sed 's/.*= \([0-9a-f]*\)/\1/' > java/target/$(ROCKSDB_SOURCES_JAR).sha1
 
+rocksdbjavastatic_deps: $(JAVA_COMPRESSIONS)
+
+rocksdbjavastatic_libobjects: $(LIB_OBJECTS)
+
 rocksdbjavastaticrelease: rocksdbjavastatic
 	cd java/crossbuild && (vagrant destroy -f || true) && vagrant up linux32 && vagrant halt linux32 && vagrant up linux64 && vagrant halt linux64 && vagrant up linux64-musl && vagrant halt linux64-musl
 	cd java;jar -cf target/$(ROCKSDB_JAR_ALL) HISTORY*.md
@@ -2298,6 +2307,9 @@ jl/%.o: %.cc
 	$(AM_V_CC)mkdir -p $(@D) && $(CXX) $(CXXFLAGS) -fPIC -c $< -o $@ $(COVERAGEFLAGS)
 
 rocksdbjava: $(LIB_OBJECTS)
+ifeq ($(JAVA_HOME),)
+	$(error JAVA_HOME is not set)
+endif
 	$(AM_V_GEN)cd java;$(MAKE) javalib;
 	$(AM_V_at)rm -f ./java/target/$(ROCKSDBJNILIB)
 	$(AM_V_at)$(CXX) $(CXXFLAGS) -I./java/. $(JAVA_INCLUDE) -shared -fPIC -o ./java/target/$(ROCKSDBJNILIB) $(JNI_NATIVE_SOURCES) $(LIB_OBJECTS) $(JAVA_LDFLAGS) $(COVERAGEFLAGS)

java/Makefile

@@ -88,7 +88,9 @@ NATIVE_JAVA_CLASSES = \
 	org.rocksdb.WriteBufferManager\
 	org.rocksdb.WBWIRocksIterator
 
-NATIVE_JAVA_TEST_CLASSES = org.rocksdb.RocksDBExceptionTest\
+NATIVE_JAVA_TEST_CLASSES = \
+    org.rocksdb.RocksDBExceptionTest\
+    org.rocksdb.test.TestableEventListener\
     org.rocksdb.NativeComparatorWrapperTest.NativeStringComparatorWrapper\
     org.rocksdb.WriteBatchTest\
     org.rocksdb.WriteBatchTestInternalHelper
@@ -207,12 +209,22 @@ SAMPLES_OUTPUT = samples/target
 SAMPLES_MAIN_CLASSES = $(SAMPLES_OUTPUT)/classes
 
 JAVA_TEST_LIBDIR = test-libs
-JAVA_JUNIT_JAR = $(JAVA_TEST_LIBDIR)/junit-4.12.jar
+JAVA_JUNIT_VER = 4.12
-JAVA_HAMCR_JAR = $(JAVA_TEST_LIBDIR)/hamcrest-core-1.3.jar
+JAVA_JUNIT_JAR = junit-$(JAVA_JUNIT_VER).jar
-JAVA_MOCKITO_JAR = $(JAVA_TEST_LIBDIR)/mockito-all-1.10.19.jar
+JAVA_JUNIT_JAR_PATH = $(JAVA_TEST_LIBDIR)/$(JAVA_JUNIT_JAR)
-JAVA_CGLIB_JAR = $(JAVA_TEST_LIBDIR)/cglib-2.2.2.jar
+JAVA_HAMCREST_VER = 1.3
-JAVA_ASSERTJ_JAR = $(JAVA_TEST_LIBDIR)/assertj-core-1.7.1.jar
+JAVA_HAMCREST_JAR = hamcrest-core-$(JAVA_HAMCREST_VER).jar
-JAVA_TESTCLASSPATH = $(JAVA_JUNIT_JAR):$(JAVA_HAMCR_JAR):$(JAVA_MOCKITO_JAR):$(JAVA_CGLIB_JAR):$(JAVA_ASSERTJ_JAR)
+JAVA_HAMCREST_JAR_PATH = $(JAVA_TEST_LIBDIR)/$(JAVA_HAMCREST_JAR)
+JAVA_MOCKITO_VER = 1.10.19
+JAVA_MOCKITO_JAR = mockito-all-$(JAVA_MOCKITO_VER).jar
+JAVA_MOCKITO_JAR_PATH = $(JAVA_TEST_LIBDIR)/$(JAVA_MOCKITO_JAR)
+JAVA_CGLIB_VER = 2.2.2
+JAVA_CGLIB_JAR = cglib-$(JAVA_CGLIB_VER).jar
+JAVA_CGLIB_JAR_PATH = $(JAVA_TEST_LIBDIR)/$(JAVA_CGLIB_JAR)
+JAVA_ASSERTJ_VER = 1.7.1
+JAVA_ASSERTJ_JAR = assertj-core-$(JAVA_ASSERTJ_VER).jar
+JAVA_ASSERTJ_JAR_PATH = $(JAVA_TEST_LIBDIR)/$(JAVA_ASSERTJ_JAR)
+JAVA_TESTCLASSPATH = $(JAVA_JUNIT_JAR_PATH):$(JAVA_HAMCREST_JAR_PATH):$(JAVA_MOCKITO_JAR_PATH):$(JAVA_CGLIB_JAR_PATH):$(JAVA_ASSERTJ_JAR_PATH)
 
 MVN_LOCAL = ~/.m2/repository
 
@@ -296,13 +308,45 @@ optimistic_transaction_sample: java
 	java -ea -Xcheck:jni -Djava.library.path=target -cp $(MAIN_CLASSES):$(SAMPLES_MAIN_CLASSES) OptimisticTransactionSample /tmp/rocksdbjni
 	$(AM_V_at)@rm -rf /tmp/rocksdbjni
 
-resolve_test_deps:
+$(JAVA_TEST_LIBDIR):
-	test -d "$(JAVA_TEST_LIBDIR)" || mkdir -p "$(JAVA_TEST_LIBDIR)"
+	mkdir -p "$(JAVA_TEST_LIBDIR)"
-	test -s "$(JAVA_JUNIT_JAR)" || cp $(MVN_LOCAL)/junit/junit/4.12/junit-4.12.jar $(JAVA_TEST_LIBDIR) || curl --fail --insecure --output $(JAVA_JUNIT_JAR) --location $(DEPS_URL)/junit-4.12.jar
+
-	test -s "$(JAVA_HAMCR_JAR)" || cp $(MVN_LOCAL)/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar $(JAVA_TEST_LIBDIR) || curl --fail --insecure --output $(JAVA_HAMCR_JAR) --location $(DEPS_URL)/hamcrest-core-1.3.jar
+$(JAVA_JUNIT_JAR_PATH): $(JAVA_TEST_LIBDIR)
-	test -s "$(JAVA_MOCKITO_JAR)" || cp $(MVN_LOCAL)/org/mockito/mockito-all/1.10.19/mockito-all-1.10.19.jar $(JAVA_TEST_LIBDIR) || curl --fail --insecure --output "$(JAVA_MOCKITO_JAR)" --location $(DEPS_URL)/mockito-all-1.10.19.jar
+ifneq (,$(wildcard $(MVN_LOCAL)/junit/junit/$(JAVA_JUNIT_VER)/$(JAVA_JUNIT_JAR)))
-	test -s "$(JAVA_CGLIB_JAR)" || cp $(MVN_LOCAL)/cglib/cglib/2.2.2/cglib-2.2.2.jar $(JAVA_TEST_LIBDIR) || curl --fail --insecure --output "$(JAVA_CGLIB_JAR)" --location $(DEPS_URL)/cglib-2.2.2.jar
+	cp -v $(MVN_LOCAL)/junit/junit/$(JAVA_JUNIT_VER)/$(JAVA_JUNIT_JAR) $(JAVA_TEST_LIBDIR)
-	test -s "$(JAVA_ASSERTJ_JAR)" || cp $(MVN_LOCAL)/org/assertj/assertj-core/1.7.1/assertj-core-1.7.1.jar $(JAVA_TEST_LIBDIR) || curl --fail --insecure --output "$(JAVA_ASSERTJ_JAR)" --location $(DEPS_URL)/assertj-core-1.7.1.jar
+else
+	curl --fail --insecure --output $(JAVA_JUNIT_JAR_PATH) --location $(DEPS_URL)/$(JAVA_JUNIT_JAR)
+endif
+
+$(JAVA_HAMCREST_JAR_PATH): $(JAVA_TEST_LIBDIR)
+ifneq (,$(wildcard $(MVN_LOCAL)/org/hamcrest/hamcrest-core/$(JAVA_HAMCREST_VER)/$(JAVA_HAMCREST_JAR)))
+	cp -v $(MVN_LOCAL)/org/hamcrest/hamcrest-core/$(JAVA_HAMCREST_VER)/$(JAVA_HAMCREST_JAR) $(JAVA_TEST_LIBDIR)
+else
+	curl --fail --insecure --output $(JAVA_HAMCREST_JAR_PATH) --location $(DEPS_URL)/$(JAVA_HAMCREST_JAR)
+endif
+
+$(JAVA_MOCKITO_JAR_PATH): $(JAVA_TEST_LIBDIR)
+ifneq (,$(wildcard $(MVN_LOCAL)/org/mockito/mockito-all/$(JAVA_MOCKITO_VER)/$(JAVA_MOCKITO_JAR)))
+	cp -v $(MVN_LOCAL)/org/mockito/mockito-all/$(JAVA_MOCKITO_VER)/$(JAVA_MOCKITO_JAR) $(JAVA_TEST_LIBDIR)
+else
+	curl --fail --insecure --output "$(JAVA_MOCKITO_JAR_PATH)" --location $(DEPS_URL)/$(JAVA_MOCKITO_JAR)
+endif
+
+$(JAVA_CGLIB_JAR_PATH): $(JAVA_TEST_LIBDIR)
+ifneq (,$(wildcard $(MVN_LOCAL)/cglib/cglib/$(JAVA_CGLIB_VER)/$(JAVA_CGLIB_JAR)))
+	cp -v $(MVN_LOCAL)/cglib/cglib/$(JAVA_CGLIB_VER)/$(JAVA_CGLIB_JAR) $(JAVA_TEST_LIBDIR)
+else
+	curl --fail --insecure --output "$(JAVA_CGLIB_JAR_PATH)" --location $(DEPS_URL)/$(JAVA_CGLIB_JAR)
+endif
+
+$(JAVA_ASSERTJ_JAR_PATH): $(JAVA_TEST_LIBDIR)
+ifneq (,$(wildcard $(MVN_LOCAL)/org/assertj/assertj-core/$(JAVA_ASSERTJ_VER)/$(JAVA_ASSERTJ_JAR)))
+	cp -v $(MVN_LOCAL)/org/assertj/assertj-core/$(JAVA_ASSERTJ_VER)/$(JAVA_ASSERTJ_JAR) $(JAVA_TEST_LIBDIR)
+else
+	curl --fail --insecure --output "$(JAVA_ASSERTJ_JAR_PATH)" --location $(DEPS_URL)/$(JAVA_ASSERTJ_JAR)
+endif
+
+resolve_test_deps: $(JAVA_JUNIT_JAR_PATH) $(JAVA_HAMCREST_JAR_PATH) $(JAVA_MOCKITO_JAR_PATH) $(JAVA_CGLIB_JAR_PATH) $(JAVA_ASSERTJ_JAR_PATH)
 
 java_test: java resolve_test_deps
 	$(AM_V_GEN)mkdir -p $(TEST_CLASSES)