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[build] Remove cmake Java support (#8952)

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This is increasingly difficult to maintain, and has very limited
benefit. Modern coprocessors with enough horsepower to run Java
applications can use the Gradle or Bazel build systems instead.
This commit is contained in:
Peter Johnson
2026-06-05 15:05:09 -07:00
committed by GitHub
parent d941be905e
commit 96fb033deb
42 changed files with 13 additions and 1238 deletions
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66
cscore/CMakeLists.txt
View File

@@ -75,72 +75,6 @@ foreach(example ${cscore_examples})
endif()
endforeach()
# Java bindings
if(WITH_JAVA)
include(UseJava)
#find JAR file, copy it locally
if("${OPENCV_JAVA_INSTALL_DIR}" STREQUAL "")
set(OPENCV_JAVA_INSTALL_DIR ${OpenCV_INSTALL_PATH}/share/java/opencv4)
endif()
find_file(
OPENCV_JAR_FILE
NAMES opencv-${OpenCV_VERSION_MAJOR}${OpenCV_VERSION_MINOR}${OpenCV_VERSION_PATCH}.jar
PATHS
${OPENCV_JAVA_INSTALL_DIR}
${OpenCV_INSTALL_PATH}/bin
${OpenCV_INSTALL_PATH}/share/java
${OpenCV_INSTALL_PATH}/share/OpenCV/java
NO_DEFAULT_PATH
)
file(GLOB cscore_jni_src src/main/native/cpp/jni/CameraServerJNI.cpp)
file(GLOB_RECURSE JAVA_SOURCES src/main/java/*.java)
set(CMAKE_JNI_TARGET true)
add_jar(
cscore_jar
${JAVA_SOURCES}
INCLUDE_JARS wpiutil_jar ${OPENCV_JAR_FILE}
OUTPUT_NAME cscore
OUTPUT_DIR ${WPILIB_BINARY_DIR}/${java_lib_dest}
GENERATE_NATIVE_HEADERS cscore_jni_headers
)
set_property(TARGET cscore_jar PROPERTY FOLDER "java")
install_jar(cscore_jar DESTINATION ${java_lib_dest})
install_jar_exports(TARGETS cscore_jar FILE cscore_jar.cmake DESTINATION share/cscore)
install(FILES ${OPENCV_JAR_FILE} DESTINATION "${java_lib_dest}")
add_library(cscorejni ${cscore_jni_src})
wpilib_target_warnings(cscorejni)
target_link_libraries(cscorejni PUBLIC cscore wpiutil ${OpenCV_LIBS})
set_property(TARGET cscorejni PROPERTY FOLDER "libraries")
target_link_libraries(cscorejni PRIVATE cscore_jni_headers)
add_dependencies(cscorejni cscore_jar)
install(TARGETS cscorejni EXPORT cscorejni)
export(TARGETS cscorejni FILE cscorejni.cmake NAMESPACE cscorejni::)
endif()
if(WITH_JAVA_SOURCE)
include(UseJava)
include(CreateSourceJar)
add_source_jar(
cscore_src_jar
BASE_DIRECTORIES ${CMAKE_CURRENT_SOURCE_DIR}/src/main/java
OUTPUT_NAME cscore-sources
OUTPUT_DIR ${WPILIB_BINARY_DIR}/${java_lib_dest}
)
set_property(TARGET cscore_src_jar PROPERTY FOLDER "java")
install_jar(cscore_src_jar DESTINATION ${java_lib_dest})
endif()
if(WITH_TESTS)
wpilib_add_test(cscore src/test/native/cpp)
target_link_libraries(cscore_test cscore googletest)

3
cscore/cscore-config.cmake.in
View File

@@ -6,6 +6,3 @@ find_dependency(OpenCV)
@FILENAME_DEP_REPLACE@
include(${SELF_DIR}/cscore.cmake)
if(@WITH_JAVA@)
include(${SELF_DIR}/cscore_jar.cmake)
endif()