Tracing and Logging Tracing and Logging includes the following topics: Tracing Tracing is a facility to redirect any output in the Java Console to a trace file. Java Plug-in Tracing can be turned on by enabling the property javaplugin.trace. 0 â€” off1 â€” basic2 â€” network, cache, and basic3 â€” security, network and basic4 â€” extension, security, network and basic5 â€” LiveConnect, extension, security, network, temp, and basic This enables tracing on the fly. Another way to set fine-grained tracing is through the Java Control Panel. -Djavaplugin.trace=true -Djavaplugin.trace.option=basic|net|cache|security|ext|liveconnect|temp Tracing set through the Control Panel will take effect when the Plug-in is launched, but changes made through the Control Panel while a Plug-in is running will have no effect until restart. Java Web Start To set the initial trace level for a Java Web Start application set the deployment property deployment.trace.level. basiccachenetsecurityextliveconnect Logging Other Options File Names
Critical Patch Updates and Security Alerts This page lists announcements of security fixes made in Critical Patch Update Advisories and Security Alerts, and it is updated when new Critical Patch Update Advisories and Security Alerts are released. It is possible to receive notification of new announcements by email, as explained in the page linked below. Security fixes in third party products distributed with Oracle products are announced in the Third Party Bulletin, whose purpose and location is explained below. Click here for important information about the OpenSSL Heartbleed vulnerability (CVE-2014-0160) Click here for instructions on how to configure email notifications. Click here to read the Technical White Paper, "Critical Patch Update Implementation Best Practices" This page contains the following sections: Critical Patch Updates Security Alerts Third Party Bulletin Public Vulnerabilities Fixed Policies Reporting Security Vulnerabilities References Critical Patch Updates Security Alerts Third Party Bulletin References
Animal Sniffer - Animal Sniffer CLI What is this? This simple command line tool looks at Java class files and determine the format version number. The common use case of this tool is to figure out what is the offending jar file when you see UnsupportedClassVersionError. Usage This tool can accept any number of: Class filesJar filesDirectories When directories are given, they are recursively scanned for class files and jar files. The tool produces output like the following, so use the grep command to filter out the list: Installer Java 7 sur Ubuntu Java 7 ne sera pas disponible dans les dépôts d'Ubuntu et de Debian. La faute à Oracle qui après avoir racheté Sun (et donc Java), a tout simplement donné fin à la licence DLJ qui permettait aux distribs Linux d'intégrer les produits Sun (Donc Java), à leurs packages. Du coup, la seule version disponible dans les dépôts sera bientôt uniquement OpenJDK 7. Voici donc un petit tuto qui vous expliquera comme installer Java 7 sous Ubuntu (et Debian). Tout d'abord, téléchargez la version de java qui correspond à votre OS. Ouvrez un terminal, et placez vous dans le répertoire où cette archive a été téléchargée et décompressez là : tar -xvf jdk-7-linux-i586.tar.gz Ensuite, on va par précaution vérifier que vous avez bien le répertoire qu'il faut pour la jvm : sudo mkdir -p /usr/lib/jvm/ et on va déplacer tout ce petit monde dans ce répertoire : sudo mv jdk1.7.0/ /usr/lib/jvm/ On va ensuite installer un petit script qui permet de faire la mise à jour au niveau du système. Et voilà !!! [Source]
Certified Programmer for the Java Platform, Standard Edition 6 (CX-310-065) Oracle acquired Sun Microsystems in 2010, and since that time Oracle's hardware and software engineers have worked side-by-side to build fully integrated systems and optimized solutions designed to achieve performance levels that are unmatched in the industry. Early examples include the Oracle Exadata Database Machine X2-8, and the first Oracle Exalogic Elastic Cloud, both introduced in late 2010. During 2011, Oracle introduced the SPARC SuperCluster T4-4, a general-purpose, engineered system with Oracle Solaris that delivered record-breaking performance on a series of enterprise benchmarks. Oracle's SPARC-based systems are some of the most scalable, reliable, and secure products available today. Sun's prized software portfolio has continued to develop as well, with new releases of Oracle Solaris, MySQL, and the recent introduction of Java 7.
The new Java Caching Standard (javax.cache) This post explores the new Java caching standard: javax.cache. How it Fits into the Java Ecosystem This standard is being developed by JSR107, of which the author is co-spec lead. JSR107 has draft status. Adoption Vendors who are either active members of the expert group or have expressed interest in implementing the specification are: Terracotta – EhcacheOracle – CoherenceJBoss – InfinispanIBM – ExtemeScaleSpringSource – GemfireGridGainTMaxGoogle App Engine Java Terracotta will be releasing a module for Ehcache to coincide with the final draft and then updating that if required for the final version. Features From a design point of view, the basic concepts are a CacheManager that holds and controls a collection of Caches. Optional Features Rather than split the specification into a number of editions targeted at different user constituencies such as Java SE and Spring/EE, we have taken a different approach. Firstly, for Java SE style caching there are no dependencies. Getting the Code
How to Install Sun Java on Ubuntu 10.04 LTS Sun Java packages have been dropped from Ubuntu 10.04 LTS from the Multiverse section of Ubuntu archive. Ubuntu team is encouraging users to use OpenJDK instead of Sun JDK/JRE but still if you want to install Sun JDK on your Ubuntu then here is the solution for the same. OpenJDK Appearing – No Sun Java in Synaptic As per the release note of Ubuntu 10.04 LTS, Ubuntu users can have Sun Java by executing the following piece of code on the command line. sudo add-apt-repository "deb lucid partner" sudo apt-get update sudo apt-get install sun-java6-jre sun-java6-plugin sudo update-alternatives --config java This will install sun-java6 packages from Canonical Partner Repository. The information is provided in the Ubuntu 10.04 LTS Lucid release note. Sanjeev Mishra is a professional blogger and an Internet Marketing Consultant based in India.
Best Java IDE to do more high-quality code in less time Java 8 & Java EE 7 Support Straightforward User Interface Editor New Features New Tools for Android Developers Refined Gradle Integration New Tools for Database Access IntelliJ IDEA 13.1, the Java IDE with the fastest-growing mindshare, includes support for Java 8 and Java EE 7, new tools for Android development, the editor enhancements, and refined Gradle integration. IntelliJ IDEA 13 adopts Java 8 and Java EE 7, the latest versions of Oracle's Java language and enterprise platform, along with support for new versions of enterprise application servers. The new editor comes with Sublime Text style multiple selections and also introduces Postfix code completion, a new kind of completion for Java which extends your productivity even more. IntelliJ IDEA 13.1, the Java IDE with the fastest-growing mindshare, includes enhanced support for Java EE 7, better Spring support, new tools for Android development and refined Gradle integration.
java - How to open jar file using open JDK? Home — Project Kenai Install Oracle Java 7 in Ubuntu via PPA Repository Update: Java 7 is no longer supported by Oracle. The binaries are no longer available for download, but if you have an Oracle account, you can still download it after logging in. The Oracle Java 7 installer in this article will continue to work only if you manually download Oracle JDK 7 (version 7u80 for 32bit and 64bit or 7u60 for arm), place it in the /var/cache/oracle-jdk7-installer/ folder on your computer, then install "oracle-java7-installer" as explained below in this article. We've previously written about installing Oracle JDK 7 in Ubuntu using a script with a GUI provided by Zenity. If you really need to use Oracle (ex Sun) Java instead of OpenJDK in Ubuntu, here's an easy way to do it: a PPA repository to install and keep your computer up to date with the latest Oracle Java 7 (Java JDK which includes JRE). Please note that this package is currently in alpha and is offered without any guarantees, so it may or may not work! Update: our Oracle Java 7 installer now supports ARM.