diff --git a/cmake/modules/DownloadAndCheck.cmake b/cmake/modules/DownloadAndCheck.cmake
new file mode 100644
index 00000000000..b6e09533209
--- /dev/null
+++ b/cmake/modules/DownloadAndCheck.cmake
@@ -0,0 +1,11 @@
+MACRO(DOWNLOAD_AND_CHECK source destination)
+  file(DOWNLOAD ${source} ${destination} STATUS download_status)
+  list(GET download_status 0 status_code)
+  list(GET download_status 1 status_message)
+
+  if(${status_code} EQUAL 0)
+    message(VERBOSE "Download of \"${source}\" successful.")
+  else()
+    message(FATAL_ERROR "Download of \"${source}\" failed: ${status_message}")
+  endif()
+ENDMACRO()
\ No newline at end of file
diff --git a/wpimath/CMakeLists.txt b/wpimath/CMakeLists.txt
index 7c7458d2486..e7fbc1ae3e1 100644
--- a/wpimath/CMakeLists.txt
+++ b/wpimath/CMakeLists.txt
@@ -3,6 +3,7 @@ project(wpimath)
 include(SubDirList)
 include(CompileWarnings)
 include(AddTest)
+include(DownloadAndCheck)
 
 file(GLOB wpimath_jni_src src/main/native/cpp/jni/WPIMathJNI_DARE.cpp
                           src/main/native/cpp/jni/WPIMathJNI_Eigen.cpp
@@ -24,19 +25,19 @@ if (WITH_JAVA)
 
       message(STATUS "Downloading EJML jarfiles...")
 
-      file(DOWNLOAD "${BASE_URL}org/ejml/ejml-cdense/0.42/ejml-cdense-0.42.jar"
+      DOWNLOAD_AND_CHECK("${BASE_URL}org/ejml/ejml-cdense/0.42/ejml-cdense-0.42.jar"
           "${JAR_ROOT}/ejml-cdense-0.42.jar")
-      file(DOWNLOAD "${BASE_URL}org/ejml/ejml-core/0.42/ejml-core-0.42.jar"
+      DOWNLOAD_AND_CHECK("${BASE_URL}org/ejml/ejml-core/0.42/ejml-core-0.42.jar"
           "${JAR_ROOT}/ejml-core-0.42.jar")
-      file(DOWNLOAD "${BASE_URL}org/ejml/ejml-ddense/0.42/ejml-ddense-0.42.jar"
+      DOWNLOAD_AND_CHECK("${BASE_URL}org/ejml/ejml-ddense/0.42/ejml-ddense-0.42.jar"
           "${JAR_ROOT}/ejml-ddense-0.42.jar")
-      file(DOWNLOAD "${BASE_URL}org/ejml/ejml-dsparse/0.42/ejml-dsparse-0.42.jar"
+      DOWNLOAD_AND_CHECK("${BASE_URL}org/ejml/ejml-dsparse/0.42/ejml-dsparse-0.42.jar"
           "${JAR_ROOT}/ejml-dsparse-0.42.jar")
-      file(DOWNLOAD "${BASE_URL}org/ejml/ejml-fdense/0.42/ejml-fdense-0.42.jar"
+      DOWNLOAD_AND_CHECK("${BASE_URL}org/ejml/ejml-fdense/0.42/ejml-fdense-0.42.jar"
           "${JAR_ROOT}/ejml-fdense-0.42.jar")
-      file(DOWNLOAD "${BASE_URL}org/ejml/ejml-simple/0.42/ejml-simple-0.42.jar"
+      DOWNLOAD_AND_CHECK("${BASE_URL}org/ejml/ejml-simple/0.42/ejml-simple-0.42.jar"
           "${JAR_ROOT}/ejml-simple-0.42.jar")
-      file(DOWNLOAD "${BASE_URL}org/ejml/ejml-zdense/0.42/ejml-zdense-0.42.jar"
+      DOWNLOAD_AND_CHECK("${BASE_URL}org/ejml/ejml-zdense/0.42/ejml-zdense-0.42.jar"
           "${JAR_ROOT}/ejml-zdense-0.42.jar")
 
       message(STATUS "All files downloaded.")
diff --git a/wpiutil/CMakeLists.txt b/wpiutil/CMakeLists.txt
index 5db2b4c6589..595e86b82e7 100644
--- a/wpiutil/CMakeLists.txt
+++ b/wpiutil/CMakeLists.txt
@@ -4,6 +4,7 @@ include(SubDirList)
 include(GenResources)
 include(CompileWarnings)
 include(AddTest)
+include(DownloadAndCheck)
 
 file(GLOB wpiutil_jni_src src/main/native/cpp/jni/WPIUtilJNI.cpp src/main/native/cpp/jni/DataLogJNI.cpp)
 
@@ -20,11 +21,11 @@ if (WITH_JAVA)
 
         message(STATUS "Downloading Jackson jarfiles...")
 
-        file(DOWNLOAD "${BASE_URL}com/fasterxml/jackson/core/jackson-core/2.15.2/jackson-core-2.15.2.jar"
+        DOWNLOAD_AND_CHECK("${BASE_URL}com/fasterxml/jackson/core/jackson-core/2.15.2/jackson-core-2.15.2.jar"
             "${JAR_ROOT}/jackson-core-2.15.2.jar")
-        file(DOWNLOAD "${BASE_URL}com/fasterxml/jackson/core/jackson-databind/2.15.2/jackson-databind-2.15.2.jar"
+        DOWNLOAD_AND_CHECK("${BASE_URL}com/fasterxml/jackson/core/jackson-databind/2.15.2/jackson-databind-2.15.2.jar"
             "${JAR_ROOT}/jackson-databind-2.15.2.jar")
-        file(DOWNLOAD "${BASE_URL}com/fasterxml/jackson/core/jackson-annotations/2.15.2/jackson-annotations-2.15.2.jar"
+        DOWNLOAD_AND_CHECK("${BASE_URL}com/fasterxml/jackson/core/jackson-annotations/2.15.2/jackson-annotations-2.15.2.jar"
             "${JAR_ROOT}/jackson-annotations-2.15.2.jar")
 
         message(STATUS "All files downloaded.")