%general-entities; ]> $LastChangedBy$ $Date$ OpenJDK IcedTea provides a build harness for the OpenJDK package, Oracle's recently open-sourced Java development environment. In order to provide a completely free runtime environment, similar to Oracle's closed distribution, the IcedTea build harness also provides free, and arguably better versions of parts of the JDK which have not been open-sourced to date. OpenJDK is useful for developing Java programs and provides a complete runtime environment to run Java programs. The browser plugin and webstart implementation have been split off into a separate project. To provide a complete implementation, you will need to later install . OpenJDK is GPL'd code, however, it should be explained that there has been a special exception made for non-free projects to use these classes in their proprietary products. In similar fashion to the LGPL, which allows non-free programs to link to libraries provided by free software, the GNU General Public License, version 2, with the Classpath Exception allows third party programs to use classes provided by free software without the requirment that the third party software also be free. As with the LGPL, any modifictaions made to the free software portions of a third party application, must also be made freely availible. The IcedTea build environment includes a very thorough, open source test suite titled JTreg. JTreg is intended to test the just built JDK for reasonable compatibility with the closed Oracle JDK. However, in order for an independent implementation to claim compatibility, including the Oracle sponsored OpenJDK project, it must pass a closed JCK/TCK test suite. No claims of compatibility, even partial compatibility, may be made without passing an approved test suite. Oracle does provide free community access, on a case by case basis, to a closed toolkit to ensure 100% compatibility with its proprietary JDK. The binary version provided here has not been tested against the TCK. Any version that is built using the instructions given, cannot claim to be compatible with the proprietary JDK, without the user applying for, and completing the compatibility tests themselves. With that in mind, the binaries produced using this build method are regularly tested against the TCK by the members listed on the site above. In addition to the community license above, an educational, non-commercial license for the TCK can be obtained from here. &lfs71_checked; Source Package Information IcedTea Source Package Download: Download MD5 sum: &icedtea-md5sum; Download Size: &icedtea-size; Corba Source Download: Download MD5 sum: &corba-md5sum; Download Size: &corba-size; Hotspot Source Download: Download MD5 sum: &hotspot-md5sum; Download Size: &hotspot-size; IcedTea Build Source Download: Download MD5 sum: &openjdk-md5sum; Download Size: &openjdk-size; JAXP Source Download: Download MD5 sum: &jaxp-md5sum; Download Size: &jaxp-size; JAXWS Source Download: Download MD5 sum: &jaxws-md5sum; Download Size: &jaxws-size; Langtools Source Download: Download MD5 sum: &langtools-md5sum; Download Size: &langtools-size; OpenJDK Source Download: Download MD5 sum: &jdk-md5sum; Download Size: &jdk-size; Estimated disk space required: &openjdk-buildsize; Estimated build time: &openjdk-time; Binary Package Information Binary download (x86): Download MD5 sum: &openjdk-bin-md5sum-x86; Download size (binary): &openjdk-bin-size-x86; Estimated disk space required: &openjdk-bin-buildsize-x86; Binary download (x86_64): Download MD5 sum: &openjdk-bin-md5sum-x64; Download size (binary): &openjdk-bin-size-x64; Estimated disk space required: &openjdk-bin-buildsize-x64; Additional Downloads Required Patches Required Jar File Rhino Java Script Download: Download MD5 sum: &rhino-md5sum; Download Size: &rhino-size; OpenJDK Dependencies Optional Runtime Dependencies (required for source installation) , , , , , and . Additional Requirements (for source build, including optional requirements) , , , , and User Notes: The instructions below install both the binary and source versions. You may stop after installing the binary version or continue on installing the source version. You can choose to keep either or both. OpenJDK Binary Installation Begin by extracting the appropriate binary tarball and changing to the extracted dirctory. Install the binary OpenJDK with the following commands as the root user: install -vdm755 /opt/OpenJDK-&openjdk-version;-bin && cp -R * /opt/OpenJDK-&openjdk-version;-bin && chown -R root:root /opt/OpenJDK-&openjdk-version;-bin Configure the temporary OpenJDK installation with the following commands: export PATH_HOLD="${PATH}" && export JAVA_HOME="/opt/OpenJDK-&openjdk-version;-bin" && export CLASSPATH=".:/usr/share/java" && export PATH="${PATH}:${JAVA_HOME}/bin" The binary version is now installed. If you don't want to compile the sources, skip ahead to the configuration section. OpenJDK Source Installation The source build of OpenJDK requires . You'll need to build that first to satisfy the reciprocal dependency, and return to this section to continue building OpenJDK. Unlike other packages in BLFS, the OpenJDK source packages are distributed in multiple downloads. Since the IcedTea build harness wil be used to build OpenJDK, begin by extracting the IcedTea package and changing into the extracted dirctory. The IcedTea OpenJDK distribuion requires that js.jar (from the Rhino package) be in place in order to provide a java-script implementation for the free JDK. If you have not installed the js.jar file in another way, do so with the following commands as the root user: unzip ../../rhino1_7R3.zip && install -v -d -m755 /usr/share/java && install -v -m755 rhino1_7R3/*.jar /usr/share/java As mentioned previously, OpenJDK is composed of several individual projects of the proprietary JDK that have been relicensed under an open source license. Put all of the individual components into the source tree with the following commands: cp -v ../corba.tar.gz . && cp -v ../hotspot.tar.gz . && cp -v ../jaxp.tar.gz . && cp -v ../jaxws.tar.gz . && cp -v ../jdk.tar.gz . && cp -v ../langtools.tar.gz . && cp -v ../openjdk.tar.gz . Apply a patch to generate a valid cacerts file using the system CA certificates: patch -Np1 -i ../icedtea-&icedtea-version;-generate_cacerts-1.patch Apply a patch to replace fixed paths with ones appropriate for BLFS: patch -Np1 -i ../icedtea-&icedtea-version;-fixed_paths-1.patch Apply a patch to exclude known broken tests from the test suite: patch -Np1 -i ../icedtea-&icedtea-version;-fix_tests-1.patch Configure and build the package with the following commands: unset JAVA_HOME && ./autogen.sh && ./configure --with-jdk-home=/opt/OpenJDK-&openjdk-version;-bin \ --enable-nss \ --enable-pulse-java && make To test the results, issue: make jtregcheck. The included version of jtreg is old, and the test suite is also very dependent on the host system and the environment that it is run in. You should expect to see anywhere between a clean set of tests and up to 160 failures in jdk with up to 17 errors in the tests themselves. The majority of the 6000+ tests should pass. The reason for the greatly varrying results is due to how stringent the testing environment must be. Varrying architechtures, different versions of dependent libraries, unexpected X Window environment and window managers, the CA certificates used to generate the cacerts file, and even any user input or power management or screen saver interuptions during the testing can lead to various failures. While the known broken tests have been removed, with the fix_tests patch above, the graphics tests faiulres cannot be pre-determined (short of removing them all). Best bet for a completely clean result is to run the test suite in a frambuffer on a different screen (Xvfb). Even still, Disk I/O can cause failures. Install the package with the following commands as the root user: cp -R openjdk.build/j2sdk-image /opt/OpenJDK-&openjdk-version; && chown -R root:root /opt/OpenJDK-&openjdk-version; ./autogen.sh: This command forces rebuilding of auto-generated files to account for new options added to configure. --with-jdk-home: This switch provides the location of the temporary JDK. --enable-nss: This switch enables the build to utilize additional crytography supplied by the nss libraries. --enable-pulse-audio: This switch enables building of the pulseaudio libraries (needed to provide a complete implementation that is reasonably compatible with the proprietary JDK). There are now two OpenJDK SDKs installed in /opt. You should decide on which one you would like to use as the default. For example if you decide to use the precompiled OpenJDK, do the following as the root user: ln -v -nsf OpenJDK-&openjdk-version;-bin /opt/OpenJDK The information below assumes your system is set up using the instructions found in . You may need to extract the relevant information below and incorporate it into your system's startup files if your system is set up differently. Add the following openjdk.sh shell startup file to the /etc/profile.d directory with the following commands as the root user: cat > /etc/profile.d/openjdk.sh << "EOF" # Begin /etc/profile.d/openjdk.sh # Set JAVA_HOME directory JAVA_HOME=/opt/OpenJDK # Adjust PATH pathappend ${JAVA_HOME}/bin PATH # Auto Java CLASSPATH # Copy jar files to, or create symlinks in this directory AUTO_CLASSPATH_DIR=/usr/share/java pathprepend . CLASSPATH for dir in `find ${AUTO_CLASSPATH_DIR} -type d 2>/dev/null`; do pathappend $dir CLASSPATH done for jar in `find ${AUTO_CLASSPATH_DIR} -name "*.jar" 2>/dev/null`; do pathappend $jar CLASSPATH done export JAVA_HOME CLASSPATH unset AUTO_CLASSPATH_DIR unset dir unset jar # End /etc/profile.d/openjdk.sh EOF Finally, add the man pages to man_db's configuration. As the root user: cat >> /etc/man_db.conf << "EOF" && MANDATORY_MANPATH /opt/OpenJDK/man MANPATH_MAP /opt/OpenJDK/bin /opt/OpenJDK/man MANDB_MAP /opt/OpenJDK/man /var/cache/man/OpenJDK EOF mandb -c /opt/OpenJDK/man Installed Programs Installed Libraries Installed Directory appletviewer, apt, extcheck, idlj, jar, jarsigner, java, javac, javadoc, javah, javap, java-rmi.cgi, jcmd, jconsole, jdb, jhat, jinfo, jmap, jps, jrunscript, jsadebugd, jstack, jstat, jstatd, keytool, native2ascii, orbd, pack200, policytool, rmic, rmid, rmiregistry, schemagen, serialver, servertool, tnameserv, unpack200, wsgen, wsimport, and xjc $JAVA_HOME/lib/*, and $JAVA_HOME/jre/lib/* /opt/openjdk-&openjdk-version; Short Descriptions appletviewer allows you to run applets outside of a web browser. appletviewer apt is an annotation processing tool. apt extcheck checks a specified jar file for title and version conflicts with any extensions installed in the OpenJDK software. extcheck idlj generates Java bindings from a given IDL file. idlj jar combines multiple files into a single jar archive. jar jarsigner signs jar files and verifies the signatures and integrity of a signed jar file. jarsigner java launches a Java application by starting a Java runtime environment, loading a specified class and invoking its main method. java javac reads class and interface definitions, written in the Java programming language, and compiles them into bytecode class files. javac javadoc parses the declarations and documentation comments in a set of Java source files and produces a corresponding set of HTML pages describing the classes, interfaces,constructors, methods, and fields. javadoc javah generates C header and source files that are needed to implement native methods. javah javap disassembles a Java class file. javap java-rmi.cgi is the Java RMI client. java-rmi.cgi jcmd is a utility to send diagnostic command requests to a running Java Virtual Machine. jcmd jconsole is a graphical console tool to monitor and manage both local and remote Java applications and virtual machines. jconsole jdb is a simple command-line debugger for Java classes. jdb jhat parses a java heap dump file and allows viewing in a webbrowser. jhat jinfo prints Java configuration information for a given Java process, core file, or a remote debug server. jinfo jmap prints shared object memory maps or heap memory details of a given process, core file, or a remote debug server. jmap jps lists the instrumented JVMs on the target system. jps jrunscript is a command line script shell. jrunscript jsadebugd attaches to a Java process or core file and acts as a debug server. jsadebugd jstack prints Java stack traces of Java threads for a given Java process, core file, or a remote debug server. jstack jstat displays performance statistics for an instrumented JVM. jstat jstatd is an RMI server application that monitors for the creation and termination of instrumented JVMs. jstatd keytool is a key and certificate management utility. keytool native2ascii converts files that contain non-supported character encoding into files containing Latin-1 or Unicode-encoded characters. native2ascii orbd is used to enable clients to transparently locate and invoke persistent objects on servers in the CORBA environment. orbd pack200 is a Java application that transforms a jar file into a compressed pack200 file using the Java gzip compressor. pack200 policytool creates and manages a policy file graphically. policytool rmic generates stub and skeleton class files for remote objects from the names of compiled Java classes that contain remote object implementations. rmic rmid starts the activation system daemon. rmid rmiregistry creates and starts a remote object registry on the specified port on the current host. rmiregistry schemagen is a Java XML binding schema generator. schemagen serialver returns the serialVersionUID for one or more classes in a form suitable for copying into an evolving class. serialver servertool provides an ease-of-use interface for application programmers to register, unregister, startup and shutdown a server. servertool tnameserv starts the Java IDL name server. tnameserv unpack200 is a native implementation that transforms a packed file produced by pack200 into a jar file. unpack200 wsgen generates JAX-WS portable artifacts used in JAX-WS web services. wsgen wsimport generates JAX-WS portable artifacts. wsimport xjc is a Java XML binding compiler. xjc