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• Is that possible to natively boot Ubuntu Touch on a PC, especially on a Surface Pro?

  - by Jules P.

  I know the question has already been asked, but the link for the instructions in the answer is outdated and the proof of concept video doesn't match with what I'm looking for. I've got a Surface Pro (1st model), I've already ran Ubuntu and Android on it several times with UnetBootin, so the question is : Is there a way to natively run Ubuntu Touch (By natively I mean by directly booting it, even on a USB key, but no emulation, no virtualization) on such a device ?

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• Halloween: Season for Java Embedded Internet of Spooky Things (IoST) (Part 4)

  - by hinkmond

  And now here's the Java code that you'll need to read your ghost sensor on your Raspberry Pi The general idea is that you are using Java code to access the GPIO pin on your Raspberry Pi where the ghost sensor (JFET trasistor) detects minute changes in the electromagnetic field near the Raspberry Pi and will change the GPIO pin to high (+3 volts) when something is detected, otherwise there is no value (ground). Here's that Java code: try { /*** Init GPIO port(s) for input ***/ // Open file handles to GPIO port unexport and export controls FileWriter unexportFile = new FileWriter("/sys/class/gpio/unexport"); FileWriter exportFile = new FileWriter("/sys/class/gpio/export"); for (String gpioChannel : GpioChannels) { System.out.println(gpioChannel); // Reset the port File exportFileCheck = new File("/sys/class/gpio/gpio"+gpioChannel); if (exportFileCheck.exists()) { unexportFile.write(gpioChannel); unexportFile.flush(); } // Set the port for use exportFile.write(gpioChannel); exportFile.flush(); // Open file handle to input/output direction control of port FileWriter directionFile = new FileWriter("/sys/class/gpio/gpio" + gpioChannel + "/direction"); // Set port for input directionFile.write(GPIO_IN); } /*** Read data from each GPIO port ***/ RandomAccessFile[] raf = new RandomAccessFile[GpioChannels.length]; int sleepPeriod = 10; final int MAXBUF = 256; byte[] inBytes = new byte[MAXBUF]; String inLine; int zeroCounter = 0; // Get current timestamp with Calendar() Calendar cal; DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss.SSS"); String dateStr; // Open RandomAccessFile handle to each GPIO port for (int channum=0; channum And, then we just load up our Java SE Embedded app, place each Raspberry Pi with a ghost sensor attached in strategic locations around our Santa Clara office (which apparently is very haunted by ghosts from the Agnews Insane Asylum 1906 earthquake), and watch our analytics for any ghosts. Easy peazy. See the previous posts for the full series on the steps to this cool demo: Halloween: Season for Java Embedded Internet of Spooky Things (IoST) (Part 1) Halloween: Season for Java Embedded Internet of Spooky Things (IoST) (Part 2) Halloween: Season for Java Embedded Internet of Spooky Things (IoST) (Part 3) Halloween: Season for Java Embedded Internet of Spooky Things (IoST) (Part 4) Hinkmond

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• Essbase Data precision unraveled

  - by THE

  (guest reference added by Nancy) Anyone who has been working with Data import and exoport as well as the Essbase Excel Add In has probably come across a phenomenon that is called data precision: Lots of zeroes are added to any given number that has been calculated by Essbase, and this gets displayed as "10.0000000000001" or "9.99999999999999" instead of a simple "10" . This question is one of the recurring ones that Support get asked over and over again, and we therefore feel the need to give an explanation to it: I would like to point you to the note The Limits of Data Precision in Essbase (Doc ID 1311188.1) which explains in detail why these numbers are showing up and what to do about it.

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• Live Updates in PrimeFaces Line Chart

  - by Geertjan

  In the Facelets file: <p:layoutUnit position="center"> <h:form> <p:poll interval="3" update=":chartPanel" autoStart="true" /> </h:form> <p:panelGrid columns="1" id="chartPanel"> <p:lineChart xaxisLabel="Time" yaxisLabel="Position" value="#{chartController.linearModel}" legendPosition="nw" animate="true" style="height:400px;width: 1000px;"/> </p:panelGrid> </p:layoutUnit> The controler: import java.io.Serializable; import javax.inject.Named; import org.primefaces.model.chart.CartesianChartModel; import org.primefaces.model.chart.ChartSeries; @Named public class ChartController implements Serializable { private CartesianChartModel model; private ChartSeries data; public ChartController() { createLinearModel(); } private void createLinearModel() { model = new CartesianChartModel(); model.addSeries(getStockChartData("Stock Chart")); } private ChartSeries getStockChartData(String label) { data = new ChartSeries(); data.setLabel(label); for (int i = 1; i <= 20; i++) { data.getData().put(i, (int) (Math.random() * 1000)); } return data; } public CartesianChartModel getLinearModel() { return model; } } Based on this sample.

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• GlassFish Community Event and Thirsty Bear Party - Reminder

  - by arungupta

  JavaOne is almost here! Here are some key activities that you don't want to miss out related to GlassFish: GlassFish Community Event - Sep 30, 11am - 1pm GlassFish and Friends Party - Sep 30, 8pm - 11pm Meet the Java EE 7 Specification Leads BoF - Oct 2, 5:30pm GlassFish Community BoF - Oct 2, 6:30pm Complete list of Java EE and GlassFish technical sessions, BOFs, and other presence is described at glassfish.org/javaone2012. See ya there!

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• JGridView (Part 2)

  - by Geertjan

  The second sample in the JGrid download is a picture viewer that needs to be seen to be believed. Here it is, integrated into a NetBeans Platform application (click to enlarge it): When you mouse over the images, they change, showing several different images instantaneously. Here's the explorer view above, mainly making use of code from the sample: public class JGridView extends JScrollPane { @Override public void addNotify() { super.addNotify(); final ExplorerManager em = ExplorerManager.find(this); if (em != null) { final JGrid grid = new JGrid(); Node root = em.getRootContext(); final Node[] nodes = root.getChildren().getNodes(); final PicViewerObject[] pics = new PicViewerObject[nodes.length]; for (int i = 0; i < nodes.length; i++) { Node node = nodes[i]; pics[i] = node.getLookup().lookup(PicViewerObject.class); } grid.getCellRendererManager().setDefaultRenderer(new PicViewerRenderer()); grid.setModel(new DefaultListModel() { @Override public int getSize() { return pics.length; } @Override public Object getElementAt(int i) { return pics[i]; } }); grid.setFixedCellDimension(160); grid.addMouseMotionListener(new MouseAdapter() { int lastIndex = -1; @Override public void mouseMoved(MouseEvent e) { if (lastIndex >= 0) { Object o = grid.getModel().getElementAt(lastIndex); if (o instanceof PicViewerObject) { Rectangle r = grid.getCellBounds(lastIndex); if (r != null && !r.contains(e.getPoint())) { ((PicViewerObject) o).setMarker(false); grid.repaint(r); } } } int index = grid.getCellAt(e.getPoint()); if (index >= 0) { Object o = grid.getModel().getElementAt(index); if (o instanceof PicViewerObject) { Rectangle r = grid.getCellBounds(index); if (r != null) { ((PicViewerObject) o).setFraction(((float) e.getPoint().x - (float) r.x) / (float) r.width); ((PicViewerObject) o).setMarker(true); lastIndex = index; grid.repaint(r); } } } } }); grid.getSelectionModel().addListSelectionListener(new ListSelectionListener() { @Override public void valueChanged(ListSelectionEvent e) { //Somehow compare the selected item //with the list of books and find a matching book: int selectedIndex = grid.getSelectedIndex(); for (int i = 0; i < nodes.length; i++) { int picId = pics[i].getId(); if (selectedIndex == picId) { try { em.setSelectedNodes(new Node[]{nodes[i]}); } catch (PropertyVetoException ex) { Exceptions.printStackTrace(ex); } } } } }); setViewportView(grid); } } } The next step is to create a generic JGridView that will handle any kind of object automatically.

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• Implementing the NetBeans Project API on Maven in IntelliJ IDEA

  - by Geertjan

  James McGivern, one of the speakers I met at JAX London, is creating media software on the NetBeans Platform. However, he's using Maven and IntelliJ IDEA and one of the features he needs is project support, i.e., the project infrastructure that's part of NetBeans IDE. The two documents that describe the NetBeans Project API are these: http://platform.netbeans.org/tutorials/nbm-projecttype.html http://netbeans.dzone.com/how-create-maven-nb-project-type By combining the above two, you'll understand how to create a project infrastructure on top of the NetBeans Platform with Maven. However, an additional step of complexity is added when IntelliJ IDEA is included into the mix and therefore I created the following screencast which, in 15 minutes, puts all the pieces together. Be aware that I'm probably not using IntelliJ IDEA and Maven as optimally as I could and I'm publishing this at least partly so that the errors of my ways can be pointed out to me. But, first and foremost, this is especially for you James:  Note: Intentionally no sound, only callouts explaining what I'm doing. You'll probably need to pause the movie here and there to absorb the text; for details on the text, see the two links referred to above.

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• Einstieg in Solaris 11

  - by Stefan Hinker

  Fuer alle die, die jetzt mit Solaris 11 anfangen wollen, gibt es eine gute Zusammenfassung der Neuerungen und Aenderungen gegenueber Solaris 10.  Zu finden als Support Dokument 1313405.1.Auch in OTN gibt es ein ganzes Portal zu Solaris 11.  Besonders hervorheben moechte ich hier die umfangreiche "How-To" Sammlung. Und nicht zuletzt gibt es natuerlich die "ganz normalen" Admin Guides.

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• Nashorn in the Twitterverse

  - by jlaskey

  I have been following how often Nashorn has been showing up on the net.  Nashorn got a burst of tweets when we announced Project Nashorn and I was curious how Nashorn was trending per day, maybe graph the result.  Counting tweets manually seemed mindless, so why not write a program to do the same. This is where Nashorn + Java came shining through.  There is a very nice Java library out there called Twitter4J https://github.com/yusuke/twitter4j that handles all things Twitter.  After running bin/getAccessToken.sh to get a twitter4j.properties file with personal authorization, all I had to do to run my simple exploratory app was; nashorn -cp $TWITTER4J/twitter4j-core-3.0.1.jar GetHomeTimeline.js The content of GetHomeTimeline.js is as follows; var twitter4j      = Packages.twitter4j; var TwitterFactory = twitter4j.TwitterFactory; var Query          = twitter4j.Query; var twitter = new TwitterFactory().instance; var query   = new Query("nashorn OR nashornjs"); query.count = 100; do {     var result = twitter.search(query);     var tweets = result.tweets;     for each (tweet in tweets) {         print("@" + tweet.user.screenName + "\t" + tweet.text);     } } while (query = result.nextQuery()); How easy was that?  Now to hook it up to the JavaFX graphing library... 

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• QotD: Maurizio Cimadamore on Project Lambda Binary Snapshots

  - by $utils.escapeXML($entry.author)

  I'm glad to announce that the first binary snapshots of the lambda repository are available at the following URL:http://jdk8.java.net/lambda/As you can imagine, as the implementation of the compiler/libraries is still under heavy development, there are still many rough corners that need to be polished. I'd like to thank you all for all the patience and the valuable feedback provided so far - please keep it coming!Maurizio Cimadamore announcing the Project Lambda binary snapshots on the lambda-dev OpenJDK mailing list.

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• Radeon HD5670 hangs after login

  - by pKaresz

  Thanks in advance for your advices. I installed, Ubuntu 12.04 today, on my PC with a Radeon hd5670 graphics card. The first error I encountered, (just like the first time Unity came out - after witch I waited to try Ubuntu again until now) is, that it hanged after login at the desktop wallpaper, with only the mouse cursor. Well actually the first problem was with the live CD, but I managed to install it, using the install now, not the try now. Live CD has the same problem, as after install. So, after installing and getting the error, I searched of course before asking this:) I found this: Ubuntu hangs at purple screen The accepted answer there helped me to get to this. (note, that the below picture is a screen taken from a working desktop, and then erased the parts that don't show on mine.) Note that there is nothing at the top except the brown bar. No shutdown button, no nothing. The system hangs, I can't click on anything, I can only wiggle around with my mouse XD

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• SOA Composite Sensors : Good Practice

  - by angelo.santagata

  I was discussing a interesting design problem with a colleague of mine Niall (his blog) on the topic of how to cancel an inflight SOA Composite process.  Obviously one way to do this is to cancel the process from enterprise Manager ( http://hostort/em ) , however we were thinking this isnt a “user friendly” way of doing this.. If you look at Nialls blog you’ll see he’s highlighted a number of different APIs which enable you the ability to manipulate the SCA instance, e.g. Code Snippet to purge (delete) an instance How to determine the instanceId from a composite_sensor_value using the “composite_sensor_value” table How to determine a BPEL Process status using the cube_instance table   Now all of these require that you know the instanceId of your SOA Composite, how does one find this out? Well the easiest way of doing this is to create a composite sensor on the SCA component. A composite sensor is simply a way of publishing a piece of business data as part of your composite. The magic here is that you can later query composites based on this value. So a good best practice is that for any composites you create consider publishing a composite sensor value using a primary key of some sort , e.g. orderId, that way if you need to manipulate/query composites you can easily look up the instanceId using the sensorid.   For information on how to create a composite Sensor id see this documentation link  

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• SAP acquires Sybase

  - by ashutossh.pewekar

  The news of the Sybase acquisition broke yesterday. The questions that immediately come to mind is " Why?" and "Isnt this too expensive ?" One out-of-the-box explanation for this marriage is simply " History repeats itself" It is more than a decade now that another German company acquired an American industry laggard. I am speaking of the Daimler-Chysler merger. It took a decade for the results of that partnership to unfold. Do things move faster in the IT industry? We will wait and watch.

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• Why did this command make my Ubuntu more awesome than before?

  - by the_misfit

  After running Ubuntu for months and liking it, I for the first time wanted to use headphones and was trying to get them to work so I ran the code in step 1 https://help.ubuntu.com/community/SoundTroubleshootingProcedure -- the result was an improvement in performance, resolution, and audio.. a vast improvement. What does that suggest about what was wrong with my settings before if running this improved system performance, graphics, and my audio problem? The command is: sudo add-apt-repository ppa:ubuntu-audio-dev/ppa; sudo apt-get update;sudo apt-get dist-upgrade; sudo apt-get install linux-sound-base alsa-base alsa-utils gdm ubuntu-desktop linux-image-`uname -r` libasound2; sudo apt-get -y --reinstall install linux-sound-base alsa-base alsa-utils gdm ubuntu-desktop linux-image-`uname -r` libasound2; killall pulseaudio; rm -r ~/.pulse*; sudo usermod -aG `cat /etc/group | grep -e '^pulse:' -e '^audio:' -e '^pulse-access:' -e '^pulse-rt:' -e '^video:' | awk -F: '{print $1}' | tr '\n' ',' | sed 's:,$::g'` `whoami`

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• Transactional Interceptors in Java EE 7 - Request for feedback

  - by arungupta

  Linda described how EJB's container-managed transactions can be applied to the Java EE 7 platform as a whole using a solution based on CDI interceptors. This can then be used by other Java EE components as well, such as Managed Beans. The plan is to add an annotation and standardized values in the javax.transaction package. For example: @Inherited @InterceptorBinding @Target({TYPE, METHOD}) @Retention(RUNTIME) public @interface Transactional { TxType value() default TxType.REQUIRED } And then this can be specified on a class or a method of a class as: public class ShoppingCart { ... @Transactional public void checkOut() {...} ... } This interceptor will be defined as part of the update to Java Transactions API spec at jta-spec.java.net. The Java EE 7 Expert Group needs your help and looking for feedback on the exact semantics. The complete discussion can be read here. Please post your feedback to [email protected] and we'll also consider comments posted to this entry.

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• Java EE @ Devoxx UK

  - by delabassee

  Devoxx UK is taking place next week (12th and 13th June) in London. As with any Devoxx conference, this UK edition will have a nice mix of content, an impressive list of speakers and obviously Java EE will be well will covered too:  Apache TomEE, Java EE Web Profile and more on Tomcat (David Blevins) Myths, Tales and Voodoo - About Java EE and Testing (Adam Bien) 50 new features of Java EE 7 (Antonio Goncalves & Arun Gupta) Java EE 7 Hands-on Lab (Arun Gupta) In addition, there will be 2 BoF related to Java EE on Thursday evening, the first BoF will be about the Java EE platform and the second one will be about the Java EE Reference Implementation, i.e. GlassFish. I will participate in the Java EE Community BoF where will discuss Java EE general but with all recent activities, I suspect that a large portion of the BoF will spent on discussing the current plans for Java EE 8.  Right after and in the same room, I will join Steve Millidge of C2B2 for the GlassFish is here to stay! BoF. The goal is to discuss on GlassFish, the current status, the plans for the next release, how the community can contributes, etc. It should be mentioned that attending those BoFs is completely free, just make sure to register here.  So if you are in London next week, mind the Geek and see you at Devoxx UK!

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• Java SE 8 (with JavaFX) Developer Preview Release for ARM

  - by Roger Brinkley

  In an effort to get ARM developers testing Java SE 8 before the scheduled release later this year a Java SE 8 Developer Preview Release for ARM has been made available. This release has been tested on the Raspberry PI but should work on other ARM platforms. In addition to the new Java SE features, this release provides specific support of hard float GPU on the Raspberry PI. The support for hard float GPU has been anticipated by a number of developers. Additionally, this release includes support of an optimized JavaFX. Specific configurations of JDK 8 on ARM are defined below: Java FX is supported on ARM architecture v6/7 (hard float) Supported platforms without Java FX: ARM architecture v6/7 (hard float) ARM architecture v7 (VFP, little endian) ARM architecture v5 (soft float, little endian) Linux x86 The download page includes setup instructions for a Raspberry PI device as well as demos and samples. Developers are also encouraged to try their own applications as well and to share their stories via the JavaFX or Project Feedback Forums.  If you've got a Raspberry PI or other ARM devices it's time to get started with Java SE 8 Developer Preview release.

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• Do Great Work

  - by user12601034

  Have you ever attended an online conference and actually had a desire to attend all of it?? Yesterday I attended the first day of the Great Work MBA program, sponsored by Box of Crayons and hosted by Michael Bungay Stanier. The topic of the day was “Grounding Yourself,” and the day featured five speakers on five different topics. I have to admit that I started the first session with kind of a “blech” feeling that I didn’t really want to participate, but for some reason I did. So I listened to the first session, and I was hooked. I ended up listening to all of the sessions for the day, and I had some great take-aways from the sessions – my highlights included: The opposite of bravery isn’t fear, it’s settling. In essence, you need to be brave in order to accomplish anything. If you’re settling, you’re not being brave, and your accomplishments will likely be lackluster. Bravery requires confidence and permission. You need to work at being brave by taking small wins, build them up and then take slightly larger risks. Additionally, you need to “claim your own crown.” Nobody in the business world is going to give you permission to be a guru in X – you need to give yourself permission to become a guru in X and then do it. Fall in love with obstacles. Everyone is going to face some form of failure. One way to deal with this is to fall in love with solving the puzzle of obstacles. You don’t have to hit it if you can go around it. Understanding purpose brings out the best in people and the best people. As a leader, drawing in people who are passionate and highly motivated about their work creates velocity for your organization. Being clear about purpose is the first step in doing this. You must own your own story. Everything about you creates a “unique you” that is distinct from everyone else. As you take ownership of this, it becomes part of your strength. It’s not a strength if you’re running away from it. Focus on what’s right. Be aware of your tendency to interpret a situation a certain way and differentiate between helpful and unhelpful interpretations. Three questions for how to think differently: 1) Why? 2) Who says so? 3) What would happen if? These three questions can help you build alternative perspectives and options that can increase resiliency. Even though this first day was focused on “Grounding Yourself,” I see plenty of application in the corporate environment for both individuals and leaders of teams. To apply these highlights to my work environment, I would do the following: Understand the purpose – of my company, of my team and of my role on the team. If I know the purpose, I know what I need to bring to the table to make me, my team and my company successful. Declare your goals…your BEHAGS (big, hairy, audacious goals).Have the confidence to declare what you and/or your team is going to accomplish.Sure, you might have to re-state those goals down the line, but you can learn from that as well. Get creative about achieving your goals.Break down your obstacles by asking yourself what is going to stop you from achieving your goals and then, for each obstacles, ask those three questions:Why?Who says so? What would happen if? Focus on what’s right.I had a manager who asked us to write status reports every week.“Status” consisted of 1) What did I accomplish; 2) What will I accomplish next week; 3) How can my manager help me.The focus on our status report was always “what’s right”(“what’s wrong” was always a conversation at the point in time it was needed). I’m normally a skeptic of online webcasts/conferences, and I normally expect to take away maybe one or two ideas. I’m really glad, however, that I took the time to listen to all of the sessions yesterday, and I hope that my take-aways inspire you to think about how you might do great work also. --

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• BI Publisher : Formatting Issues

  - by Manoj Madhusoodanan

  While creating BI Publisher reports the formatting issues are quite common.Here I am discussing some common issues related to BIP report development. 1) First issue is related to column formatting.When you want to display some data which has leading zeros or trailing zeros after '.' in EXCEL output you will not get the desired output.But in PDF it will come as what you are expecting.This is not with the issue of your data. This is due to the unique nature of EXCEL cell format.When you are trying to put a text data in a cell with out making any change to cell format it will treat as number and it will truncate all leading zeros and all trailing zeros after '.' . So what you have to do is to convert that data into a format which EXCEL can treat as text. Eg: If you want to display 0020100 convert this data into ="0020100". Same way for 23789.02300 to ="23789.02300".   Note: This is applicable to EXCEL output only.If you have multiple output type apply it only for EXCEL. 2) Second is related to report size issue in PDF output type.If the number of columns are more and if you want to show most of the columns in one row andif it is a PDF output you can choose the paper size as Legal (8.5 x 14''). You will get more spaces in the template to accommodate more columns. 3) If your XML data contains special characters like &,<,> etc ..  pass the data to DBMS_XMLGEN.CONVERT function.It will replace special characters with corresponding XML notations. Eg: (a>b) & (c!=d) to  (a&gt;b) &amp; (c!=d)

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• JavaOne Community Keynote Videos

  - by Tori Wieldt

  If you weren't able to attend JavaOne 2012 in San Francisco, one of the high points was the Community Keynote on the last day. It was by the community and for the community. It included a visit from James Goling, demos, and community members describing what they've been up to. You can watch highlights: or watch the full keynote: The continued innovation of Java requires the full engagement, participation, and collaboration of the Java community. Well done!

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• Will We See More Partisan Splits from the SEC?

  - by Theresa Hickman

  The SEC's lawsuit against Goldman Sachs has made recent headlines. The fact that the SEC seems to be growing more litigious by making examples out of invididuals and companies is not the topic of my blog. The most interesting thing about this case is that the 5 SEC commissioners did not vote unanimously to bring the lawsuit. The commissioners had a 3-2 partisan split. Ms. Shapiro (a registered independent) voted with the 2 Democrats. Split votes rarely happen by the SEC, especially when they are enforcing actions against firms they regulate. I wonder if we will be seeing more of these partisan split votes when it comes to other decisions, say IFRS adoption? I know both the Democrats and Republicans have stated that they support a unified accounting standard. However, will the Republicans want to push back simply because there is a Democrat in office? (Seems childish to me, but I never understood politics). I think Ms. Shapiro will most definitely want a unanimous consensus related to the IFRS topic. There is already talk that we will be seeing more SEC split votes in the future. For example, there will most likely be a split vote regarding Obama's proposed financial-regulatory overhaul. I don't see why IFRS would be exempt. I really hope it doesn't happen because the last thing we need is more road blocks on our IFRS road trip.

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• JSR updates

  - by heathervc

  There were many JSR updates over the last week.  See below. JSR 258, Mobile User Interface Customization API, has published a Maintenance Release. JSR 257, Contactless Communication API, has published a Maintenance Release 2. JSR 180, SIP API for J2ME, has published a Final Release 5. JSR 269, Pluggable Annotation Processing API, has published a Maintenance Release. JSR 344, JavaServerTM Faces 2.2, has published an Early Draft Review.  The review closes on 8 December.

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• JDK8 New Build Infrastructure

  - by kto

  I unintentionally posted this before I verified everything, so once I have verified it all works, I'll updated this post. But this is what should work... Most Interesting Builder in the World: "I don't always build the jdk, but when I do, I prefer The New JDK8 Build Infrastructure. Stay built, my friends." So the new Build Infrastructure changes have been integrated into the jdk8/build forest along side the older Makefiles (newer in makefiles/ and older ones in make/). The default is still the older makefiles. Instructions can be found in the Build-Infra Project User Guide. The Build-Infra project's goal is to create the fastest build possible and correct many of the build issues we have been carrying around for years. I cannot take credit for much of this work, and wish to recognize the people who do so much work on this (and will probably still do more), see the New Build Infrastructure Changeset for a list of these talented and hard working JDK engineers. A big "THANK YOU" from me. Of course, every OS and system is different, and the focus has been on Linux X64 to start, Ubuntu 11.10 X64 in particular. So there are at least a base set of system packages you need. On Ubuntu 11.10 X64, you should run the following after getting into a root permissions situation (e.g. have run "sudo bash"): apt-get install aptitude aptitude update aptitude install mercurial openjdk-7-jdk rpm ssh expect tcsh csh ksh gawk g++ build-essential lesstif2-dev Then get the jdk8/build sources: hg clone http://hg.openjdk.java.net/jdk8/build jdk8-build cd jdk8-build sh ./get_source.sh Then do your build: cd common/makefiles bash ../autoconf/configure make We still have lots to do, but this is a tremendous start. -kto

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• Best Practices for High Volume CPA Import Operations with ebXML in B2B 11g

  - by Shub Lahiri, A-Team

  Background B2B 11g supports ebXML messaging protocol, where multiple CPAs can be imported via command-line utilities.  This note highlights one aspect of the best practices for import of CPA, when large numbers of CPAs in the excess of several hundreds are required to be maintained within the B2B repository. Symptoms The import of CPA usually is a 2-step process, namely creating a soa.zip file using b2bcpaimport utility based on a CPA properties file and then using b2bimport to import the b2b repository.  The commands are provided below: ant -f ant-b2b-util.xml b2bcpaimport -Dpropfile="<Path to cpp_cpa.properties>" -Dstandard=true ant -f ant-b2b-util.xml b2bimport -Dlocalfile=true -Dexportfile="<Path to soa.zip>" -Doverwrite=true Usually the first command completes fairly quickly regardless of the number of CPAs in the repository. However, as the number of trading partners within the repository goes up, the time to complete the second command could go up to ~30 secs per operation. So, this could add up to a significant amount, if there is a need to import hundreds of CPA in a production system within a limited downtime, maintenance window.  Remedy In situations, where there is a large number of entries to be imported, it is best to setup a staging environment and go through the import operation of each individual CPA in an empty repository. Since, this will be done in an empty repository, the time taken for completion should be reasonable.  After all the partner profiles have been imported, a full repository export can be taken to capture the metadata for all the entries in one file.  If this single file with all the partner entries is imported in a loaded repository, the total time taken for import of all the CPAs should see a dramatic reduction. Results Let us take a look at the numbers to see the benefit of this approach. With a pre-loaded repository of ~400 partners, the individual import time for each entry takes ~30 secs. So, if we had to import another 100 partners, the individual entries will take ~50 minutes (100 times ~30 secs). On the other hand, if we prepare the repository export file of the same 100 partners from a staging environment earlier, the import takes about ~5 mins. The total processing time for the loading of metadata, specially in a production environment, can thus be shortened by almost a factor of 10. Summary The following diagram summarizes the entire approach and process. Acknowledgements The material posted here has been compiled with the help from B2B Engineering and Product Management teams.

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• How do I access my remote Ubuntu server via X-windows from my Mac?

  - by Magooda

  I have an Ubuntu server (12.04 LTS) running remotely on a cloud hosting service. I have installed ubuntu-desktop via apt-get: $ sudo apt-get install ubuntu-desktop It appears to have installed no problem. I have confirmed that /etc/ssh/ssh_config on the server contains the lines ForwardAgent yes ForwardX11 yes ForwardX11Trusted yes and that /etc/ssh/sshd_config on the server contains the line: X11Forwarding yes I then rebooted the server. It came back up no problem. Now, starting X11.app on my Mac I am presented with an Xterm. I connect to my server from this terminal using: $ ssh -X <myhost> and I connect to the server, no problem. At this point I don't know what to do. I have tried $ sudo startx but I get a "no screens found" error. I don't have screens because its a headless cloud server, but I just want to acces it from my Mac through X. What now?

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