# 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" ) # 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 major/minor version and patch level from "java -version" output # Tested on linux using # 1. Sun / Sun OEM # 2. OpenJDK 1.6 # 3. GCJ 1.5 # 4. Kaffe 1.4.2 # 5. OpenJDK 1.7.x on OpenBSD if(var MATCHES "java version \"([0-9]+\\.[0-9]+\\.[0-9_.]+.*)\"") # This is most likely Sun / OpenJDK, or maybe GCJ-java compat layer set(Java_VERSION_STRING "${CMAKE_MATCH_1}") elseif(var MATCHES "java full version \"kaffe-([0-9]+\\.[0-9]+\\.[0-9_]+)\"") # Kaffe style set(Java_VERSION_STRING "${CMAKE_MATCH_1}") elseif(var MATCHES "openjdk version \"([0-9]+\\.[0-9]+\\.[0-9_]+.*)\"") # OpenJDK ver 1.7.x on OpenBSD set(Java_VERSION_STRING "${CMAKE_MATCH_1}") else() if(NOT Java_FIND_QUIETLY) message(WARNING "regex not supported: ${var}. Please report") endif() endif() string( REGEX REPLACE "([0-9]+).*" "\\1" Java_VERSION_MAJOR "${Java_VERSION_STRING}" ) string( REGEX REPLACE "[0-9]+\\.([0-9]+).*" "\\1" Java_VERSION_MINOR "${Java_VERSION_STRING}" ) string( REGEX REPLACE "[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" Java_VERSION_PATCH "${Java_VERSION_STRING}" ) # warning tweak version can be empty: string( REGEX REPLACE "[0-9]+\\.[0-9]+\\.[0-9]+[_\\.]?([0-9]*).*$" "\\1" Java_VERSION_TWEAK "${Java_VERSION_STRING}" ) if( Java_VERSION_TWEAK STREQUAL "" ) # check case where tweak is not defined set(Java_VERSION ${Java_VERSION_MAJOR}.${Java_VERSION_MINOR}.${Java_VERSION_PATCH}) else() set(Java_VERSION ${Java_VERSION_MAJOR}.${Java_VERSION_MINOR}.${Java_VERSION_PATCH}.${Java_VERSION_TWEAK}) 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 ) 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})