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Book Excerpt: Java Application Profiling Tips and Tricks - Part 2In early JVM releases, it was common to delegate Java monitor operations directly to operating system monitors, or mutex primitives. As a result, a Java application experiencing lock contention would exhibit high values of system CPU utilization since operating system mutex primitives involve system calls. In modern JVMs Java monitors are mostly implemented within the JVM in user code rather than immediately delegating them to operating system locking primitives. This means Java applications can exhibit lock contention yet not consume system CPU. Rather, these applications first consume user CPU utilization when attempting to acquire a lock. Only applications that experience severe lock contention may show high system CPU utilization since modern JVMs tend to delegate to operating system locking primitives as a last resort. A Java application running in a modern JVM that experiences lock contention tends to show symptoms of not scaling to a large number of application threads, CPU cores, or a large number of concurrent users. The challenge is finding the source of the lock contention, that is, where are those Java monitors in the source code and what can be done to reduce the lock contention.
eclipse developer's journal | 06-Dec-2011 17:00
HP Mates Autonomy and Vertica
Autonomy’s new owner announced its first real-time Autonomy software, called Autonomy IDOL 10, available December 1, a surprisingly short eight weeks after the deal closed. It’s reportedly capable of integrating – as HP suggested it would be – with HP’s more conventional Vertica acquisition done in March. Together they’re supposed to handle 100% of a company’s data. Of course it’d not like the stuff is integrated with a more widely used RDBMS. However, IDOL 10 is supposed to provide a single processing layer so organizations can extract meaning and act on all forms of information, including audio, video, social media, e-mail and web content, as well as structured data such as customer transaction logs and machine-based sensor data.
eclipse developer's journal | 04-Dec-2011 17:00
Adobe Sends Flex to the Apache Foundation
After casting a pall on the future of Flash by canceling any further development of Flash on mobile devices last week, Abode has abandoned its Flash-based Flex application SDK to the tender mercies of the Apache Software Foundation (ASF), reinforcing the idea that Flash is ultimately toast, burned by rival HTML5, a posthumous victory for Steve Jobs who openly loathed Adobe’s stuff. Flash’s future looks bleaker still considering Flex can build both desktop and mobile apps. The Apache Foundation will have to vote on whether it will take Flex and its roadmap under its wing. Flex has been open source since 2008 but will have to shift out from under Adobe’s control and be managed as an independent project.
eclipse developer's journal | 20-Nov-2011 16:00
IBM Buys Q1 Labs
IBM is buying privately held security ISV Q1 Labs, whose software is used to detect hacking threats and attacks through real-time data analysis. Terms were not disclosed. Q1 Labs, which competes with HP’s ArcSight acquisition and EMC’s RSA unit, will become part of a new IBM Security Systems Division to be run by Q1 CEO Brendan Hannigan and combine 10 other security acquisitions IBM’s made in the last few years.
eclipse developer's journal | 09-Oct-2011 18:00
Judge Takes Away Google’s Sealing Wax
Google lost a bid Monday to suppress evidence that it willfully infringed on Oracle’s IP in building Android. On July 21, during the Daubert hearing Google wanted, District Court Judge William Alsup, who’s presiding over the Oracle v Google Java case, read into the record an e-mail written by Google engineer Tim Lindholm in August 2010, right before Oracle sued Google, saying that at the direction of Google co-founders Larry Page and Sergey Brin alternatives to Java had been explored, that they all “sucked,” and that “We conclude that we need to negotiate a license for Java under the terms we need.”
eclipse developer's journal | 04-Aug-2011 19:30
Judge Takes Away Google’s Sealing Wax
Google lost a bid Monday to suppress evidence that it willfully infringed on Oracle’s IP in building Android. On July 21, during the Daubert hearing Google wanted, District Court Judge William Alsup, who’s presiding over the Oracle v Google Java case, read into the record an e-mail written by Google engineer Tim Lindholm in August 2010, right before Oracle sued Google, saying that at the direction of Google co-founders Larry Page and Sergey Brin alternatives to Java had been explored, that they all “sucked,” and that “We conclude that we need to negotiate a license for Java under the terms we need.”
eclipse developer's journal | 04-Aug-2011 19:30
Open Cloud Initiative Revived
After a couple of false starts over the last couple of years, the Open Cloud Initiative (OCI) has been resurrected to advocate for royalty-free open standards in cloud computing with a set of Open Cloud Principles (OCP) that are unlikely to be universally accepted. It says its purpose is “to provide a legal framework within which the greater cloud computing community of users and providers can reach consensus on a set of requirements for Open Cloud, as described in the document, and then apply those requirements to cloud computing products and services, again by way of community consensus.” There will be a 30-day comment period on the Open Cloud Principles, which are described as focused on “interoperability, avoiding barriers to entry or exit and ensuring technological neutrality.”
eclipse developer's journal | 02-Aug-2011 18:45
Oracle Reportedly Asking Android Makers for Royalties
Rumor has it that Oracle is soliciting Java royalties from Android device makers in case it wins its Android suit against Google and the price goes up. Deutsche Bank analyst Jonathan Goldberg says he heard from “various handset makers” that Oracle wants $15-$20 a device for Dalvik. He hasn’t heard of anybody signing up yet and the range sounds awfully like a first negotiating move. Microsoft, meanwhile, according to South Korea’s Maeil Business Newspaper, is supposedly trying to get $15 per Android device from Samsung, which would be triple the $5-a-device Microsoft is believed to be getting from HTC.
eclipse developer's journal | 17-Jul-2011 16:00
Hadoop Begets Hortonworks
Yahoo, which needs to turn a buck as well as focus on its own issues, is spinning out its Hadoop unit into an independent new company co-funded by Benchmark Capital called Hortonworks after the Dr. Seuss character Horton the Elephant. It’s a nice whimsical touch considering Hadoop is really a stuffed elephant who had his identity stolen, which may explain why the code is sometimes cranky. Hortonworks will compete against other Hadoop commercializers like Cloudera, IBM, newcomer MapR and its buddy EMC and figures to accelerate Hadoop’s adoption by making the code “more robust and easier to install, manage and use for enterprises and technology vendors.”
eclipse developer's journal | 04-Jul-2011 15:30
Sun Burns Oracle
Oracle performed trimly enough last quarter reporting results Thursday that tore through estimates and whisper numbers. It plunked earnings of 75 cents a share, or $3.9 billion, up 27%, on Wall Street’s plate. On a GAAP basis earnings were up 36%. Revenues were up 13% to $10.78 billion. The company was only supposed to do 71 cents a share on revenues of $10.75 billion according to Wall Street’s consensus. Oracle itself had projected 69 cents-73 cents. It was Oracle’s very first $10 billion quarter. Growth was said to be broad-based with no material deals. Its all-important new software license revenues were up 19% to $3.7 billion “with almost no help from acquisitions” according to Oracle president Safra Catz. Expectations were for $3.6 billion. She preened that Oracle’s software sales are now bigger than IBM’s, which if cut out of Blue would be a Fortune 500 company on their own.
eclipse developer's journal | 26-Jun-2011 15:15
IBM CEO Seeks Heir
IBM CEO Sam Palmisano is going to designate his heir apparent in 12-18 months by naming a president or operating chief, according to the Wall Street Journal. Handicappers say the mantle is likely to fall on the shoulders of Virginia Rometty, 53, who led the integration of PriceWaterhouseCoopers’ consulting arm, got her services card punched and in the three quarters she’s been running sales has managed to up the number 5.8%. Obviously she would be IBM’s first female captain. Also reportedly in the race are Global Services chief Michael Daniels, 56, who may be too old and Rodney Adkins, 52, the African-American, who held the server unit together after Robert Moffat got arrested in the Galleon Group insider-trading case.
eclipse developer's journal | 19-Jun-2011 18:00
Apache Takes in OpenOffice Waif
This is not exactly going to come as news to anybody but the Apache Software Foundation has taken in the Oracle-orphaned OpenOffice.org for incubation under its Apache 2.0 license. Open Document Format (ODF) architect Rob Weir said in a blog post that the breakaway LibreOffice people tried to “smother” the project “in its crib” because they “see Apache OpenOffice as a mortal threat to their project, since its gain comes only at their expense” by garnering all the developer talent. Weir basically says they should stop playing a zero-sum game and get back to trying to diminish Microsoft’s hegemony. Apache plans to try to collaborate with LibreOffice, which may be strong on Linux but whose market share on Windows is negligible compared to OpenOffice. Maybe they’ll reunite at some point. Who knows?
eclipse developer's journal | 18-Jun-2011 17:00
Valve, JAAS and Filter in Tomcat
Tomcat is a widely popular lightweight application server. When securing Tomcat web applications, Valve, JAAS and Filter are used in various scenarios. The challenges for developers are when to use each of these methods and how to integrate them together if more than one method is chosen. For example, the WebSeal agent discussed in the article [1] uses Valve. If a customer needs to integrate WebSeal and its own JAAS-based authentication module, they will need to know how to configure Tomcat to use both the WebSeal Agent Valve and the JAAS module and how to pass information between them. In this article, we will explain the concepts of Valve, JAAS and Filter, and their relationships such as the order that they get called. Through an example application, we will explain how you can use them together and pass information among them for an authentication process. How to configure and run the example application using Tomcat 7 will also be discussed.
eclipse developer's journal | 17-Jun-2011 17:00
Oracle Seeks Stiff Penalties from Google
That reverberating scream you hear, the one that sounds like a wounded water buffalo beset by a pack of rabid hyenas, is Google after it saw how much Oracle expects in damages from its patent and copyright suit over Android’s alleged misuse of Java. Once it got the figure Google immediately started the legal wheels turning to try to get the estimate made by Oracle’s expert thrown out as “speculative and arbitrary,” full of “fundamental and disqualifying” legal errors before the case gets to trial on October 31 (Halloween, how perfect). Google doesn’t want a whiff of his sealed “opening damages report” or his testimony getting anywhere near a jury because his conclusions “would prejudice Google.” The five-page letter saying so that Google’s lawyers wrote to the presiding judge Monday is redacted so key numbers are blacked out but there’s enough substance left to see that Oracle wants a hefty chunk of Google’s mobile ad revenues plus compensation for fragmenting Java.
eclipse developer's journal | 12-Jun-2011 15:00
Sun Settles Eolas’ Java Claims
Remember Eolas, the one-man company whose 1998 browser patent struck so much fear in the heart of Would Wide Web creator Tim Berners-Lee that he personally asked the US Patent and Trademark Office to invalid it as a “major impediment to the operation of the web”? Well, Eolas rushed out Monday to say that it had settled with Sun Microsystems that morning. Naturally the terms weren’t disclosed. That leaves another 18 defendants to go. In October of 2009 Eolas sued 23 brand name companies in the infamous plaintiff-leaning Eastern District of Texas – specifically faulting Adobe’s Flash and Shockwave; Apple’s QuickTime, Safari for Windows and Mac and Apple desktops and laptops; Google’s Chrome for Windows and Mac; and Sun’s Java and JavaFX – and that was after finally settling up with Microsoft, its test case, two years before.
eclipse developer's journal | 11-Jun-2011 17:30
Intel Brings New Meaning to the ‘Hybrid’ Cloud
Intel – like everybody else these days – has gone into the cloud business with a new subscription-based business model and its own special twist. It’s got a Hybrid Cloud Platform that it’s pointing at server makers, ISVs and service providers so they can lease small businesses of under a hundred people plug-and-play Intel AppUp service of pre-packaged applications on an Intel Xeon server that the small businesses can run in-house and pay for like a utility. The data won’t leave the premises. Charges will be monthly with Intel keeping the books and billing the service provider for what is used. The service provider in turn will bill the small business. Charges will be based on the number of users and software rented. Leases are supposed to run three years.
eclipse developer's journal | 30-May-2011 15:30
JNBridge Mates Java & .NET in the Cloud
JNBridge thinks it’s licked the tricky problem of Java and .NET integration in the cloud and to prove it has released JNBridgePro 6.0 saying developers can now access both .NET- and Java-based cloud services and APIs from the ground or from cloud-based clients and develop cloud services and APIs that incorporate both Java- and .NET-based components. JNBridgePro started on the ground connecting Java- and .NET Framework-based components and applications together with Eclipse and Visual Studio plug-ins that remove the complexities of cross-platform interoperability. The company says JNBridgePro 6.0 takes that interoperability to the cloud so developers can build and distribute integrated applications in the same cloud – whether it’s the same or different instances; between wholly different clouds; and ground-to-cloud or cloud-to-ground, where the interoperability is between a cloud instance and an application running on the ground.
eclipse developer's journal | 28-May-2011 16:30
Red Hat Offers Early Access to Its PaaS Runtime Engine
Red Hat is opening early access to JBoss Enterprise Application Platform 6, which won’t be generally available until the beginning of next year. The application server is the runtime engine for the company’s Platform-as-a-Service widgetry. It’s also supposed to tickle the adoption of Java EE 6, which Red Hat suggests is now lighter weight, modular and productive than Java used to be. Red Hat’s middleware boss Craig Muzilla called Application Platform 6 a reflection of “our vision of the future of Java application platforms for both traditional and cloud-based environments.”
eclipse developer's journal | 07-May-2011 20:00
Google Seeks Patent Protection for WebM & VP8
There is now such a thing as the WebM Community Cross-License (CCL) Initiative, which is out collecting patents presumably to protect the royalty-free open source file format and its VP8 video codec created by Google against any infringement claims made by the MPEG Licensing Association. MPEG LA, which is forming a patent pool – and being investigated by the Justice Department for it – has maintained that “VP8 is not patent-free.” The newborn CCL effort has so far got 17 founding members that have “agreed to license patents they may have that are essential to WebM technologies to other members of the CCL” for free. They are identified as AMD, Cisco, Google, HiSilicon Technologies (for itself and its parent Huawei), LG, Logitech, Matroska, Mips, Mozilla, Opera, Pantech, Quanta, Samsung, STMicroelectronics and its 50-50 joint venture ST-Ericsson, TI, Verisilicon Holdings and the Xiph.org Foundation.
eclipse developer's journal | 01-May-2011 15:30
A Rich Desktop Development Environment Based on the Eclipse IDE
Micro Focus Visual COBOL delivers the richest development experience for COBOL programmers available on Windows and Linux. Using the Eclipse rich client platform as an integrated development environment (IDE), the needs of the COBOL programmer are the primary focus. In parallel, the enhancements to the COBOL language make it even easier to use to build modern object-oriented applications. The Visual COBOL Development Hub and Visual COBOL for Eclipse solve these problems by providing a rich desktop development environment based on the Eclipse IDE with high-performance server-based tools for managing builds, source code access and debugger engine.
eclipse developer's journal | 07-Mar-2011 16:19
OpenOffice Fork’s Poor Box Overflows
The Document Foundation (TDF) and its spit-in-Oracle’s-eye LibreOffice fork of OpenOffice, which put out the begging bowl a couple of weeks ago looking to raise €50,000 ($69,322) so it can become a legal German foundation, says it raised that amount from 2,000 supporters in eight days. Speaking for the operation’s steering committee member Florian Effenberger said, “We still can’t believe it, it happened in such a short period of time and was beyond our wildest expectations.” The funds can’t be spent. TDF will depend on further contributions to bankroll its ongoing running costs such as marketing, hardware, infrastructure, trade shows, financing merchandising material and development.
eclipse developer's journal | 05-Mar-2011 17:30
Tasktop and SmartBear Partner to Unite Peer Code Review for Eclipse
Tasktop Technologies, creators of the Eclipse Mylyn project and a provider of Agile Application Lifecycle Management (ALM) integration and productivity, and SmartBear Software on Wednesday announced the Eclipse Mylyn Connector for SmartBear CodeCollaborator. Available in Tasktop Enterprise, the new connector brings task-focused interface technology to code reviews managed in CodeCollaborator, making code reviews a regular part of Eclipse-based development activities. The integrated Tasktop and CodeCollaborator offering helps development teams develop higher quality software that is delivered to market faster and more efficiently. “This latest Tasktop Enterprise connector is the result of our collaboration with SmartBear and a joint enterprise customer who needed to improve developer productivity by taking advantage of the task-focused interface to get the most out of the code review process,” said Mik Kersten, CEO of Tasktop Technologies and founder of the open source Eclipse Mylyn project. “Many organizations deploying Agile practices will find the task management and automated knowledge capture provided by Tasktop to be a developer-friendly on-ramp to SmartBear’s leading code review tool.”
eclipse developer's journal | 23-Feb-2011 19:55
Tasktop and SmartBear Partner to Unite Peer Code Review for Eclipse
Tasktop Technologies, creators of the Eclipse Mylyn project and a provider of Agile Application Lifecycle Management (ALM) integration and productivity, and SmartBear Software on Wednesday announced the Eclipse Mylyn Connector for SmartBear CodeCollaborator. Available in Tasktop Enterprise, the new connector brings task-focused interface technology to code reviews managed in CodeCollaborator, making code reviews a regular part of Eclipse-based development activities. The integrated Tasktop and CodeCollaborator offering helps development teams develop higher quality software that is delivered to market faster and more efficiently. “This latest Tasktop Enterprise connector is the result of our collaboration with SmartBear and a joint enterprise customer who needed to improve developer productivity by taking advantage of the task-focused interface to get the most out of the code review process,” said Mik Kersten, CEO of Tasktop Technologies and founder of the open source Eclipse Mylyn project. “Many organizations deploying Agile practices will find the task management and automated knowledge capture provided by Tasktop to be a developer-friendly on-ramp to SmartBear’s leading code review tool.”
eclipse developer's journal | 23-Feb-2011 19:55