http://zeroturnaround.com/forum/ ZeroTurnaround Support Forum » Recent Posts en Mon, 21 May 2012 16:40:25 +0000 http://zeroturnaround.com/forum/topic.php?id=1709#post-8283 Mon, 21 May 2012 16:37:13 +0000 bm97 8283@http://zeroturnaround.com/forum/ <p><a href="http://t.co/g7MEtpTV" rel="nofollow">http://t.co/g7MEtpTV</a> = screencast, which shows what jrebel and nbm development </p> http://zeroturnaround.com/forum/topic.php?id=2014#post-8282 Mon, 21 May 2012 10:45:15 +0000 Rein 8282@http://zeroturnaround.com/forum/ <p>Hi,</p> <p>The compatibility check is for hot-patching only. We distinguish 100+ low-level changes that can be applied to a class/method/field during the update (e.g. add new static field). Each type of change is known to be either a) compatible, b) compatible with a warning (depends on the actual application and change), c) incompatible.</p> <p>During the comparison LiveRebel compares classes between the old and new version and tries to detect those types of changes in your application. The compatibility of the whole update is detected by the worst singe change it contains.</p> <p>Any change to an XML is "compatible with a warning". For configuration changes we recommend to use rolling restart or full restart. </p> http://zeroturnaround.com/forum/topic.php?id=2013#post-8281 Mon, 21 May 2012 10:37:02 +0000 Ievgen 8281@http://zeroturnaround.com/forum/ <p>Thanks for reply. </p> <p>Is there an API for LiveRebel to write a support for a custom container ?<br /> Or do you have plans to provide a support (of LiveRebel) for standalone JVMs ? </p> http://zeroturnaround.com/forum/topic.php?id=2013#post-8280 Mon, 21 May 2012 10:23:45 +0000 Andres Luuk 8280@http://zeroturnaround.com/forum/ <p>Hi<br /> To answer your questions from the first post:<br /> 1. Currently there is now way to sync JRebel running across multiple JVMs.<br /> 2. The default time between class reload checks is 500 ms.<br /> 3. JRebel API is meant for framework integrations. It is for enabling reloading on custom classloaders and re-executing some initialization when class reload has occurred.<br /> By using JRebel API you can make an event to execute after a class has changed (point 2.3): zeroturnaround.com/software/jrebel/resources/jrebel-plugins/ </p> http://zeroturnaround.com/forum/topic.php?id=2012#post-8279 Mon, 21 May 2012 10:13:03 +0000 mirko 8279@http://zeroturnaround.com/forum/ <p>Hi, </p> <p>it is possible, from readme.txt:</p> <p>Browse to <a href="https://localhost:9001" rel="nofollow">https://localhost:9001</a><br /> If this port doesn't work for you please provide one when starting the server by setting LIVEREBEL_PORT environment variable to your liking. You may also change the JAVA_OPTS environment variable.</p> <p>If you have configured a reverse proxy then you can use the contextPath variable to force this web application to a specific context path.<br /> Example: export JAVA_OPTS="-DcontextPath=/my-very-own-path" and then you can access it via <a href="https://yourhost.com/my-very-own-path" rel="nofollow">https://yourhost.com/my-very-own-path</a></p> <p>Let us know if you face further issues. </p> http://zeroturnaround.com/forum/topic.php?id=2013#post-8278 Mon, 21 May 2012 09:48:53 +0000 Ievgen 8278@http://zeroturnaround.com/forum/ <p>I've just looked one more time through the LiveRebel product.<br /> It seems doing exactly what I want, however these JVMs in my case form a private cloud computing framework . Is it possible to use some API to make LiveRebel supprot custom "App Server" each of each is actually a standalone JVM ? </p> http://zeroturnaround.com/forum/topic.php?id=2014#post-8277 Mon, 21 May 2012 09:13:22 +0000 Ievgen 8277@http://zeroturnaround.com/forum/ <p>Hi, </p> <p>Could you tell me what does LiveRebel actually do when saying that this or that update is compatible / not compatible with the deployed version ?<br /> Does it basically look for supported/nonsupported changes ( <a href="http://zeroturnaround.com/software/jrebel/features/)" rel="nofollow">http://zeroturnaround.com/software/jrebel/features/)</a> ? </p> http://zeroturnaround.com/forum/topic.php?id=2013#post-8276 Mon, 21 May 2012 08:59:49 +0000 Ievgen 8276@http://zeroturnaround.com/forum/ <p>Hi, </p> <p>I've written a simple test that consists of a client and server sending each other SomeClass object via RMI.<br /> <pre><code>public class SomeClass implements Serializable { public int getVersion() { return 1; } }</code></pre> <p>On the client side I ask the server to return the result of getVersion() method and compare it to the result obtained locally.</p> <pre><code>while(true) { int localVersion = someClass.getVersion(); int remoteVersion = service.getVersion(someClass); if (localVersion != remoteVersion) { throw new RuntimeException(&quot;Local version &quot; + localVersion + &quot; does not match the remote &quot; + remoteVersion); } }</code></pre> <p>Changing the version returned by getVersion() method results in the exception above.<br /> If I put some Thread.sleep(1000) everything works smoothly.</p> <p>So, a couple of questions arise:<br /> 1. Could you tell me is there a way to sync an update across multiple JVMs ?<br /> 2. And how frequently JRebel checks the timestamps of the classes. ?<br /> 3. Can I intrude into the process of reloading classes by using JRebel API ?</p> <p>P.S. I'm testing against JRebel Social </p> http://zeroturnaround.com/forum/topic.php?id=2001#post-8275 Mon, 21 May 2012 08:58:17 +0000 Andres Luuk 8275@http://zeroturnaround.com/forum/ <p>Hi<br /> We found out that there is a bug with NetworkInterface.getNetworkInterfaces() in your WAS version and that causes us some problems, we will find a fix for it in JRebel. </p> http://zeroturnaround.com/forum/topic.php?id=2001#post-8274 Mon, 21 May 2012 08:40:15 +0000 tang 8274@http://zeroturnaround.com/forum/ <p>Dear Andres,</p> <p>We found this issue was related to that we set the IP of license server to multiple host names in the "hosts" file. </p> http://zeroturnaround.com/forum/topic.php?id=2012#post-8273 Mon, 21 May 2012 07:28:06 +0000 sanderwartenberg 8273@http://zeroturnaround.com/forum/ <p>By default, the LiveRebel Command Center runs on port 9001. Is it possible to change this? </p> http://zeroturnaround.com/forum/topic.php?id=1947#post-8266 Mon, 21 May 2012 06:45:20 +0000 aleksey 8266@http://zeroturnaround.com/forum/ <p>Thanks to JRebel support team! </p> http://zeroturnaround.com/forum/topic.php?id=2006#post-8265 Sun, 20 May 2012 21:47:19 +0000 SpaceDog 8265@http://zeroturnaround.com/forum/ <p>FYI: I just preemptively sent my jrebel.log file to <a href="mailto:support@zeroturnaround.com">support@zeroturnaround.com</a>, so there's no need to ask for it here. Now you have all of the info you need. Thanks. </p> http://zeroturnaround.com/forum/topic.php?id=2006#post-8264 Sun, 20 May 2012 21:36:31 +0000 SpaceDog 8264@http://zeroturnaround.com/forum/ <p>[the rest of my post follows...]</p> <p>=========================================================<br /> &lt;?xml version="1.0" encoding="UTF-8"?&gt;<br /> &lt;application xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.zeroturnaround.com" xsi:schemaLocation="http://www.zeroturnaround.com <a href="http://www.zeroturnaround.com/alderaan/rebel-2_0.xsd" rel="nofollow">http://www.zeroturnaround.com/alderaan/rebel-2_0.xsd</a>"&gt;</p> <p> &lt;classpath&gt;<br /> &lt;dir name="/Users/&lt;username&gt;/SoftwareDevelopment/Projects/ByLanguage/Java/applications/&lt;anonymized&gt;/&lt;anonymized&gt;/deploy/local/exploded/WEB-INF/classes" /&gt;<br /> &lt;/classpath&gt;</p> <p> &lt;war dir="/Users/&lt;username&gt;/SoftwareDevelopment/Projects/ByLanguage/Java/applications/&lt;anonymized&gt;/&lt;anonymized&gt;/deploy/local/exploded/" /&gt;</p> <p> &lt;web&gt;<br /> &lt;link target="/"&gt;<br /> &lt;dir name="/Users/&lt;username&gt;/SoftwareDevelopment/Projects/ByLanguage/Java/applications/&lt;anonymized&gt;/&lt;anonymized&gt;/web"&gt;<br /> &lt;/dir&gt;<br /> &lt;/link&gt;<br /> &lt;/web&gt;<br /> &lt;/application&gt;<br /> =========================================================<br /> (Note: I've tried it both with and without the "&lt;war&gt;" element)</p> <p>So, we know that Jetty gets started properly, with JRebel correctly piggybacking atop the JVM. All files are in the right locations. All filesystem permissions are good. And yet it NEVER, EVER detects any changes to any files. I'm thus led to believe that I just blew money on a license for some Java code which does nothing but print stuff to a text file and my container's STDOUT stream. Dude, a college freshman can do that, and for free, too.</p> <p>Any ideas? This is supposed to be so simple. I've gone through the entire First-Aid and Installation documentation several times. I've searched on the forums again and again. Not a single person has had my problem. And yet I'm a very experienced developer and UNIX sysadmin and still can't get a single class setup to be monitored. WTF. </p> http://zeroturnaround.com/forum/topic.php?id=2006#post-8263 Sun, 20 May 2012 21:35:48 +0000 SpaceDog 8263@http://zeroturnaround.com/forum/ <p>First, here's my environment:</p> <p>OS: OS X (10.7.3)<br /> Servlet container: Jetty (7.x)<br /> IDE: IntelliJ IDEA 10.5.4<br /> JVM version: 1.7<br /> JRebel version: 4.6.2<br /> JRebel IntelliJ plugin version: 1.3.16<br /> JRebel license: 1 seat, limited, personal, expires on 2013-05-19 21:40</p> <p>I invoke Jetty from the command-line using the suggested jetty-jrebel.sh wrapper which adds the appropriate -javaagent switch and the [correct] path to jrebel.jar, which is located under ~/.jrebel/jrebel.jar. In fact, everything (the properties file, the license file, the bin/ directory, etc.) is under ~/.jrebel/. There are no spaces in any paths, I've double-checked. All file permissions are correct. JRebel debug logging has been turned on.</p> <p>When I start up my container and tail both the jrebel.log and stderrout.log (from Jetty) files, I see that JRebel is indeed being pulled in. The Jetty log file contains the line "JRebel: Starting logging to file: /private/var/log/jrebel.log", followed by license info and a list of disabled plugins. I DO NOT, however, see a single line in any of the log files telling me that it's monitoring any classes. I do see jrebel.log mentioning a lot of Jetty-related classes, but that's it. After that, about once every 5 seconds, the jrebel.log file is truncated and new content added regarding license info and disabled plugins. It has never mentioned anything about class reloading or class monitoring.</p> <p>All compiled classes get put under build/production/&lt;project name&gt;/ at the root of my project, and this directory is what I set as my classpath directory inside my rebel.xml file. I've checked and confirmed about 30 times now that the rebel.xml file is properly placed inside my WEB-INF/classes/ directory which, upon project build/make, gets published to the following directory under my project root: "deploy/local/exploded/".</p> <p>Here is my full rebel.xml file (with private info anonymized):</p> <p>=========================================================<br /> &lt;?xml version="1.0" encoding="UTF-8... [truncated] </p> http://zeroturnaround.com/forum/topic.php?id=902#post-8262 Sun, 20 May 2012 21:05:42 +0000 Michael Chang 8262@http://zeroturnaround.com/forum/ <p>Gotta love it when people never reply back about how they solved their problem. I see this all the time in these forums. In fact you see it a lot in the Java world in general. </p> http://zeroturnaround.com/forum/topic.php?id=2003#post-8257 Sun, 20 May 2012 05:18:16 +0000 Andres Luuk 8257@http://zeroturnaround.com/forum/ <p>Hi<br /> The update-site.zip offline Installation file is meant for Eclipse JRebel plugin offline installation. You install it as you would any other eclipse plugin (from Eclipse):<br /> Help-&gt;Install New Software..-&gt;(From the Site list) Add-&gt;Location to the file you download.<br /> A tutorial how to install JRebel through Eclipse marketplace:<br /> <a href="http://zeroturnaround.com/software/jrebel/eclipse-jrebel-tutorial/" rel="nofollow">http://zeroturnaround.com/software/jrebel/eclipse-jrebel-tutorial/</a><br /> If you did not want the Eclipse installer, then you should download JRebel from:<br /> <a href="http://zeroturnaround.com/software/jrebel/current/" rel="nofollow">http://zeroturnaround.com/software/jrebel/current/</a> </p> http://zeroturnaround.com/forum/topic.php?id=1993#post-8256 Sat, 19 May 2012 14:06:38 +0000 anton 8256@http://zeroturnaround.com/forum/ <p>What is the exact version of Glassfish? Will it make a diference if you start the container outside the ide? (have to configura javaagent manually) </p> http://zeroturnaround.com/forum/topic.php?id=2003#post-8254 Sat, 19 May 2012 05:59:25 +0000 houjinxin 8254@http://zeroturnaround.com/forum/ <p>nobody give me some advice? </p> http://zeroturnaround.com/forum/topic.php?id=2003#post-8249 Sat, 19 May 2012 03:55:13 +0000 houjinxin 8249@http://zeroturnaround.com/forum/ <p>I hava download the update-site.zip offline Installation file. but i dont know how to install it.<br /> So, somebody can give me some advice? very very Thank you! </p> http://zeroturnaround.com/forum/topic.php?id=1960#post-8246 Fri, 18 May 2012 18:57:37 +0000 bmvakili 8246@http://zeroturnaround.com/forum/ <p>Nevermind! It's working now!</p> <p>The issue was that I had yet to deploy the WAR file containing the rebel.xml files.<br /> Awesome. </p> http://zeroturnaround.com/forum/topic.php?id=1996#post-8245 Fri, 18 May 2012 17:56:06 +0000 bm97 8245@http://zeroturnaround.com/forum/ <p>Thank you. Good to know. </p> http://zeroturnaround.com/forum/topic.php?id=1960#post-8244 Fri, 18 May 2012 17:39:02 +0000 bmvakili 8244@http://zeroturnaround.com/forum/ <p>I'm having same issue. </p> http://zeroturnaround.com/forum/topic.php?id=2000#post-8243 Fri, 18 May 2012 13:19:40 +0000 tinsua 8243@http://zeroturnaround.com/forum/ <p>OK, thank you very much! </p> http://zeroturnaround.com/forum/topic.php?id=2000#post-8242 Fri, 18 May 2012 13:16:51 +0000 igor.bljahhin 8242@http://zeroturnaround.com/forum/ <p>Hi again!</p> <p>I got information, that proxy support is not implemented in JRebel client to avoid commercial usage of Social service. So, it was done on purpose.</p> <p>I will forward the issue with your locked activation to developers. </p> http://zeroturnaround.com/forum/topic.php?id=2000#post-8241 Fri, 18 May 2012 12:59:20 +0000 tinsua 8241@http://zeroturnaround.com/forum/ <p>Thank you for your help and info.</p> <p>Is there any date for the next version? And is there any quick solution I can possibly try<br /> for the current version to work? I tried to get the evaluation license, but won't let me, tells me<br /> that the product is already activated with the social one, even if i remove and reinstall jrebel.<br /> (guess it connects my IP to the license?) </p> http://zeroturnaround.com/forum/topic.php?id=2001#post-8240 Fri, 18 May 2012 12:42:30 +0000 Andres Luuk 8240@http://zeroturnaround.com/forum/ <p>Hi<br /> We must investigate. What JRebel version are you using?<br /> Could you say what version of Java are you using and what is your exact version of application server.<br /> Could you add -Drebel.log=true -Drebel.log.trace=true to jvm arguments, reproduce the issue, and send jrebel.log (by default will be generated to the same folder as jrebel.jar) to <a href="mailto:support@zeroturnaround.com">support@zeroturnaround.com</a>. </p> http://zeroturnaround.com/forum/topic.php?id=2001#post-8239 Fri, 18 May 2012 12:37:31 +0000 tang 8239@http://zeroturnaround.com/forum/ <p>Once I modify my class, JRebel failed to reload it by causing following error:</p> <p>[5/18/12 20:30:09:560 CST] 00000012 BusinessExcep E CNTR0019E: EJB threw an unexpected (non-declared) exception during invocation of method "invokeWithTransactionAttributeRequiresNew". Exception data: java.lang.Error: IP Helper Library GetIfTable function failed<br /> at java.net.NetworkInterface.getAll(Native Method)<br /> at java.net.NetworkInterface.getNetworkInterfaces(NetworkInterface.java:297)<br /> at com.zeroturnaround.javarebel.zv.a(JRebel:17)<br /> at com.zeroturnaround.javarebel.rX.&lt;clinit&gt;(JRebel:71)<br /> at java.lang.J9VMInternals.initializeImpl(Native Method)<br /> at java.lang.J9VMInternals.initialize(J9VMInternals.java:200)<br /> at com.zeroturnaround.javarebel.qa.a(JRebel:1039)<br /> at com.zeroturnaround.javarebel.oz.reloadClass(JRebel:763)<br /> at com.zeroturnaround.javarebel.oX.reloadClass(JRebel:175)<br /> at com.zeroturnaround.javarebel.oX.b(JRebel:157)<br /> at com.zeroturnaround.javarebel.oX.b(JRebel:148)<br /> at com.zeroturnaround.javarebel.zz.b(JRebel:85)<br /> at com.zeroturnaround.javarebel.SDKReloaderImpl.checkAndReload(JRebel:87)<br /> at com.zeroturnaround.javarebel.zz.a(JRebel:75)<br /> at com.zeroturnaround.javarebel.yE.getDeclaredConstructor(JRebel:307)<br /> at java.lang.Class.getDeclaredConstructor(Class.java)<br /> at com.zeroturnaround.javarebel.yE.newInstance(JRebel:416)<br /> at java.lang.Class.newInstance(Class.java)<br /> at com.ibm.ejs.container.EJSHome.createBeanO(EJSHome.java:1030)<br /> at com.ibm.ejs.container.EJSHome.createBeanO(EJSHome.java:1141)<br /> at com.ibm.ejs.container.activator.UncachedActivationStrategy.atActivate(UncachedActivationStrategy.java:84)<br /> at com.ibm.ejs.container.activator.Activator.activateBean(Activator.java:599)<br /> at com.ibm.ejs.container.EJSContainer.preInvokeActivate(EJSContainer.java:3964)<br /> at com.ibm.ejs.container.EJSContainer.EjbPreInvoke(EJSContainer.java:3349)<br /> at com.ibm.CORBA.iiop.ServerDelegate.dispatchInvokeHandler(ServerDelegate.java:623)<br /> at com.ibm.CORBA.iiop.ServerDelegate.dispatch(ServerDelegate.ja... [truncated] </p> http://zeroturnaround.com/forum/topic.php?id=2000#post-8238 Fri, 18 May 2012 12:14:33 +0000 igor.bljahhin 8238@http://zeroturnaround.com/forum/ <p>That might be a reason. Currently JRebel client does not use proxy to connect to Social, as far as I know. I will record your case and the proxy support will be probably implemented in next version of JRebel client. </p> http://zeroturnaround.com/forum/topic.php?id=2000#post-8237 Fri, 18 May 2012 12:03:18 +0000 tinsua 8237@http://zeroturnaround.com/forum/ <p>Yes, I have been using jrebel for the last 3 years and I never had any issue.</p> <p>Now, at my new job, I have this issue. The browser has proxy, yes, I tried removing it<br /> but still same error. But it reaches <a href="https://social.jrebel.com:443" rel="nofollow">https://social.jrebel.com:443</a> via the browser only with the proxy on. </p> http://zeroturnaround.com/forum/topic.php?id=2000#post-8236 Fri, 18 May 2012 11:59:49 +0000 igor.bljahhin 8236@http://zeroturnaround.com/forum/ <p>Did it worked before? Are you using proxy in your web browser? </p> http://zeroturnaround.com/forum/topic.php?id=2000#post-8235 Fri, 18 May 2012 11:53:44 +0000 tinsua 8235@http://zeroturnaround.com/forum/ <p>JRebel 4.6.2 (201205021440) </p> http://zeroturnaround.com/forum/topic.php?id=2000#post-8234 Fri, 18 May 2012 11:52:01 +0000 igor.bljahhin 8234@http://zeroturnaround.com/forum/ <p>Hello,</p> <p>What is the version of your JRebel client? </p> http://zeroturnaround.com/forum/topic.php?id=2000#post-8233 Fri, 18 May 2012 11:43:08 +0000 tinsua 8233@http://zeroturnaround.com/forum/ <p>Hi,</p> <p>I get the following error when trying to use jrebel.</p> <p>[2012-05-18 13:16:29] JRebel: Contacting license server social.jrebel.com:443.<br /> [2012-05-18 13:17:53]<br /> [2012-05-18 13:17:53] JRebel: WARNING! WARNING! WARNING! WARNING! WARNING!<br /> [2012-05-18 13:17:53] JRebel: Cannot establish connection to the license server!<br /> [2012-05-18 13:17:53] JRebel: Please make sure you can connect to <a href="https://social" rel="nofollow">https://social</a><br /> .jrebel.com:443</p> <p>I can connect to the <a href="https://social.jrebel.com:443" rel="nofollow">https://social.jrebel.com:443</a>, and I have a social license.</p> <p>I would appreciate your help! </p> http://zeroturnaround.com/forum/topic.php?id=1996#post-8232 Fri, 18 May 2012 10:08:43 +0000 erkki 8232@http://zeroturnaround.com/forum/ <p>The agent settings app may disappear in the next JRebel version, and will be replaced with in-IDE UI. Will take that suggestion into consideration for that. </p>