# Distributed under the OSI-approved BSD 3-Clause License. See accompanying # file Copyright.txt or https://cmake.org/licensing for details. #.rst: # FindJava # -------- # # Find Java # # This module finds if Java is installed and determines where the # include files and libraries are. The caller may set variable JAVA_HOME # to specify a Java installation prefix explicitly. # # See also the :module:`FindJNI` module to find Java development tools. # # Specify one or more of the following components as you call this find module. See example below. # # :: # # Runtime = User just want to execute some Java byte-compiled # Development = Development tools (java, javac, javah and javadoc), includes Runtime component # IdlJ = idl compiler for Java # JarSigner = signer tool for jar # # # This module sets the following result variables: # # :: # # Java_JAVA_EXECUTABLE = the full path to the Java runtime # Java_JAVAC_EXECUTABLE = the full path to the Java compiler # Java_JAVAH_EXECUTABLE = the full path to the Java header generator # Java_JAVADOC_EXECUTABLE = the full path to the Java documentation generator # Java_IDLJ_EXECUTABLE = the full path to the Java idl compiler # Java_JAR_EXECUTABLE = the full path to the Java archiver # Java_JARSIGNER_EXECUTABLE = the full path to the Java jar signer # Java_VERSION_STRING = Version of java found, eg. 1.6.0_12 # Java_VERSION_MAJOR = The major version of the package found. # Java_VERSION_MINOR = The minor version of the package found. # Java_VERSION_PATCH = The patch version of the package found. # Java_VERSION_TWEAK = The tweak version of the package found (after '_') # Java_VERSION = This is set to: $major[.$minor[.$patch[.$tweak]]] # # # # The minimum required version of Java can be specified using the # standard CMake syntax, e.g. find_package(Java 1.5) # # NOTE: ${Java_VERSION} and ${Java_VERSION_STRING} are not guaranteed to # be identical. For example some java version may return: # Java_VERSION_STRING = 1.5.0_17 and Java_VERSION = 1.5.0.17 # # another example is the Java OEM, with: Java_VERSION_STRING = 1.6.0-oem # and Java_VERSION = 1.6.0 # # For these components the following variables are set: # # :: # # Java_FOUND - TRUE if all components are found. # Java__FOUND - TRUE if is found. # # # # Example Usages: # # :: # # find_package(Java) # find_package(Java COMPONENTS Runtime) # find_package(Java COMPONENTS Development) include(${CMAKE_CURRENT_LIST_DIR}/CMakeFindJavaCommon.cmake) # The HINTS option should only be used for values computed from the system. set(_JAVA_HINTS) if(_JAVA_HOME) list(APPEND _JAVA_HINTS ${_JAVA_HOME}/bin) endif() list(APPEND _JAVA_HINTS "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\2.0;JavaHome]/bin" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.9;JavaHome]/bin" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.8;JavaHome]/bin" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.7;JavaHome]/bin" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.6;JavaHome]/bin" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.5;JavaHome]/bin" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.4;JavaHome]/bin" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Development Kit\\1.3;JavaHome]/bin" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\2.0;JavaHome]/bin" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\1.9;JavaHome]/bin" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\1.8;JavaHome]/bin" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\1.7;JavaHome]/bin" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\1.6;JavaHome]/bin" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\1.5;JavaHome]/bin" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\1.4;JavaHome]/bin" "[HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft\\Java Runtime Environment\\1.3;JavaHome]/bin" ) # Hard-coded guesses should still go in PATHS. This ensures that the user # environment can always override hard guesses. set(_JAVA_PATHS /usr/lib/java/bin /usr/share/java/bin /usr/local/java/bin /usr/local/java/share/bin /usr/java/j2sdk1.4.2_04 /usr/lib/j2sdk1.4-sun/bin /usr/java/j2sdk1.4.2_09/bin /usr/lib/j2sdk1.5-sun/bin /opt/sun-jdk-1.5.0.04/bin /usr/local/jdk-1.7.0/bin /usr/local/jdk-1.6.0/bin ) find_program(Java_JAVA_EXECUTABLE NAMES java HINTS ${_JAVA_HINTS} PATHS ${_JAVA_PATHS} ) if(Java_JAVA_EXECUTABLE) execute_process(COMMAND ${Java_JAVA_EXECUTABLE} -version RESULT_VARIABLE res OUTPUT_VARIABLE var ERROR_VARIABLE var # sun-java output to stderr OUTPUT_STRIP_TRAILING_WHITESPACE ERROR_STRIP_TRAILING_WHITESPACE) if( res ) if(var MATCHES "No Java runtime present, requesting install") set_property(CACHE Java_JAVA_EXECUTABLE PROPERTY VALUE "Java_JAVA_EXECUTABLE-NOTFOUND") elseif(${Java_FIND_REQUIRED}) message( FATAL_ERROR "Error executing java -version" ) else() message( STATUS "Warning, could not run java -version") endif() else() # Extract version components (up to 4 levels) from "java -version" output. set(_java_version_regex [[(([0-9]+)(\.([0-9]+)(\.([0-9]+)(_([0-9]+))?)?)?.*)]]) if(var MATCHES "java version \"${_java_version_regex}\"") # Sun, GCJ, older OpenJDK set(Java_VERSION_STRING "${CMAKE_MATCH_1}") set(Java_VERSION_MAJOR "${CMAKE_MATCH_2}") set(Java_VERSION_MINOR "${CMAKE_MATCH_4}") set(Java_VERSION_PATCH "${CMAKE_MATCH_6}") set(Java_VERSION_TWEAK "${CMAKE_MATCH_8}") elseif(var MATCHES "openjdk version \"${_java_version_regex}\"") # OpenJDK set(Java_VERSION_STRING "${CMAKE_MATCH_1}") set(Java_VERSION_MAJOR "${CMAKE_MATCH_2}") set(Java_VERSION_MINOR "${CMAKE_MATCH_4}") set(Java_VERSION_PATCH "${CMAKE_MATCH_6}") set(Java_VERSION_TWEAK "${CMAKE_MATCH_8}") elseif(var MATCHES "openjdk version \"([0-9]+)-[A-Za-z]+\"") # OpenJDK 9 early access builds or locally built set(Java_VERSION_STRING "1.${CMAKE_MATCH_1}.0") set(Java_VERSION_MAJOR "1") set(Java_VERSION_MINOR "${CMAKE_MATCH_1}") set(Java_VERSION_PATCH "0") set(Java_VERSION_TWEAK "") elseif(var MATCHES "java full version \"kaffe-${_java_version_regex}\"") # Kaffe style set(Java_VERSION_STRING "${CMAKE_MATCH_1}") set(Java_VERSION_MAJOR "${CMAKE_MATCH_2}") set(Java_VERSION_MINOR "${CMAKE_MATCH_4}") set(Java_VERSION_PATCH "${CMAKE_MATCH_6}") set(Java_VERSION_TWEAK "${CMAKE_MATCH_8}") else() if(NOT Java_FIND_QUIETLY) string(REPLACE "\n" "\n " ver_msg "\n${var}") message(WARNING "Java version not recognized:${ver_msg}\nPlease report.") endif() set(Java_VERSION_STRING "") set(Java_VERSION_MAJOR "") set(Java_VERSION_MINOR "") set(Java_VERSION_PATCH "") set(Java_VERSION_TWEAK "") endif() set(Java_VERSION "${Java_VERSION_MAJOR}") if(NOT "x${Java_VERSION}" STREQUAL "x") foreach(c MINOR PATCH TWEAK) if(NOT "x${Java_VERSION_${c}}" STREQUAL "x") string(APPEND Java_VERSION ".${Java_VERSION_${c}}") else() break() endif() endforeach() endif() endif() endif() find_program(Java_JAR_EXECUTABLE NAMES jar HINTS ${_JAVA_HINTS} PATHS ${_JAVA_PATHS} ) find_program(Java_JAVAC_EXECUTABLE NAMES javac HINTS ${_JAVA_HINTS} PATHS ${_JAVA_PATHS} ) find_program(Java_JAVAH_EXECUTABLE NAMES javah HINTS ${_JAVA_HINTS} PATHS ${_JAVA_PATHS} ) find_program(Java_JAVADOC_EXECUTABLE NAMES javadoc HINTS ${_JAVA_HINTS} PATHS ${_JAVA_PATHS} ) find_program(Java_IDLJ_EXECUTABLE NAMES idlj HINTS ${_JAVA_HINTS} PATHS ${_JAVA_PATHS} ) find_program(Java_JARSIGNER_EXECUTABLE NAMES jarsigner HINTS ${_JAVA_HINTS} PATHS ${_JAVA_PATHS} ) include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) if(Java_FIND_COMPONENTS) set(_JAVA_REQUIRED_VARS) foreach(component ${Java_FIND_COMPONENTS}) # User just want to execute some Java byte-compiled If(component STREQUAL "Runtime") list(APPEND _JAVA_REQUIRED_VARS Java_JAVA_EXECUTABLE) if(Java_JAVA_EXECUTABLE) set(Java_Runtime_FOUND TRUE) endif() elseif(component STREQUAL "Development") list(APPEND _JAVA_REQUIRED_VARS Java_JAVA_EXECUTABLE Java_JAVAC_EXECUTABLE Java_JAVAH_EXECUTABLE Java_JAVADOC_EXECUTABLE) if(Java_JAVA_EXECUTABLE AND Java_JAVAC_EXECUTABLE AND Java_JAVAH_EXECUTABLE AND Java_JAVADOC_EXECUTABLE) set(Java_Development_FOUND TRUE) endif() elseif(component STREQUAL "IdlJ") list(APPEND _JAVA_REQUIRED_VARS Java_IDLJ_EXECUTABLE) if(Java_IDLJ_EXECUTABLE) set(Java_IdlJ_FOUND TRUE) endif() elseif(component STREQUAL "JarSigner") list(APPEND _JAVA_REQUIRED_VARS Java_JARSIGNER_EXECUTABLE) if(Java_JARSIGNER_EXECUTABLE) set(Java_JarSigner_FOUND TRUE) endif() else() message(FATAL_ERROR "Comp: ${component} is not handled") endif() endforeach() list (REMOVE_DUPLICATES _JAVA_REQUIRED_VARS) find_package_handle_standard_args(Java REQUIRED_VARS ${_JAVA_REQUIRED_VARS} HANDLE_COMPONENTS VERSION_VAR Java_VERSION ) if(Java_FOUND) foreach(component ${Java_FIND_COMPONENTS}) set(Java_${component}_FOUND TRUE) endforeach() endif() else() # Check for Development find_package_handle_standard_args(Java REQUIRED_VARS Java_JAVA_EXECUTABLE Java_JAR_EXECUTABLE Java_JAVAC_EXECUTABLE Java_JAVAH_EXECUTABLE Java_JAVADOC_EXECUTABLE VERSION_VAR Java_VERSION_STRING ) endif() mark_as_advanced( Java_JAVA_EXECUTABLE Java_JAR_EXECUTABLE Java_JAVAC_EXECUTABLE Java_JAVAH_EXECUTABLE Java_JAVADOC_EXECUTABLE Java_IDLJ_EXECUTABLE Java_JARSIGNER_EXECUTABLE ) # LEGACY set(JAVA_RUNTIME ${Java_JAVA_EXECUTABLE}) set(JAVA_ARCHIVE ${Java_JAR_EXECUTABLE}) set(JAVA_COMPILE ${Java_JAVAC_EXECUTABLE})