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Posted by admin - 7 janvier 2014 - no comments

No software could clean my PDF file, but this online tool did :

Posted by admin - 24 décembre 2013 - no comments

Disclaimer: this note is not finished yet. When trying to compile, you may encounter some Ivy errors. Server access Error: PKIX path building failed: unable to find valid…

Posted by admin - 24 décembre 2013 - no comments

In Eclipse, the following exception message may occur: « could not publish to the serveur » (nullpointerexception). This error may appear if one of the deployed application does not exist anymore. Delete…

Posted by admin - 23 décembre 2013 - no comments

If a javascript function must be executed using some managed bean output, the complex data should be accessible using the data attribute (e.g. in jsFunction) to point the Managed Bean…

Posted by admin - 23 décembre 2013 - no comments

You may alert easily display the content (with identation) of a javascript object by using the following method: (JSON.stringify(myObj));

Posted by admin - 23 décembre 2013 - no comments

A very common mistake, in jsFunction from Richfaces is to use f:param instead of a4j:param. This would explain lot of issues.

Posted by admin - 23 décembre 2013 - no comments

A small tip to retrieve in Javascript the parameter in the URL. The function inputs are the parameter name, and the url (which could be obtained through parent.window.location). getURLParameterFromURL =  …

Posted by admin - 20 décembre 2013 - no comments

Some important standard specifications using WS-Addressing for asynchronous communications are not compliant with the specifications. As stated in the WS-Addressing specification, by the following sentence : This section specifies the…

Posted by admin - 29 août 2013 - no comments

Forcing the reload of an application on Glassfish server can easily be done by deleting /autodeploy/.autodeploystatus/webappname file (where webappname is replace by the application name). Touching web.xml is not working…

Posted by admin - 22 février 2013 - no comments

Why my buttons or actions or listener don’t work ? The most frequent issue is that you forgot to put a form or wrote « form » instead of the « h:form » tag……

  • Java: Multiple Logging Libraries 4 décembre 2018
    When you classpath contains multiple logging libraries, the Java virtual machine will inevitable select one of the library. If, for an obscure reason, you are not sure which one will be used, you may add multiple configuration files in your resources folder (for example: and logback.xml and
  • Host Maven Repository for Free 27 novembre 2018
    Actually, there is no (really) free Maven repository hosting. But it does not mean you have to pay for it !Indeed, the solution comes from a very simple idea:1. Build a maven repository locally2. Copy to the file to a free hosting solution (Dropbox, Gitlab, Github, etc.)Concretely, you build using:-DaltDeploymentRepository=myRepositoryName::default::file:///C:/my/temp/dirThen you need to copy/sync/push the […]
  • Curl POST on Windows (with JSON request) 14 novembre 2018
    Most of curl versions fail on Windows to Post  JSON data, two simple workaround:1. If Git is installed, use the bash command to open a linux emulated bash. Then simply use the unix curl command. Very easy !2. Second solution: put the json in a file, and refer the file in the command line using […]
  • Tips on Postgres Installation 9 novembre 2018
    Some tips for installing Postgres 10:Install:sudo rpm -Uvh yum install postgresql10-server postgresql10sudo /usr/pgsql-10/bin/postgresql-10-setup initdbsudo systemctl start postgresql-10.servicesudo systemctl enable postgresql-10.serviceStop/restart:service postgresql-10 restartEnable md5 authentication (password):1. vi /var/lib/pgsql/10/data/pg_hba.conf (adapt the path)2. set md5 for authentication methods3.restart postgresCreate new user:createuser -P -e gepadminCreate new DB: createdb -e -O gepadmin wpsTest new DB connection:psql -U gepadmin -W -d wps
  • Java get file mime type 9 novembre 2018
    In Java 7 you can now just use Files.probeContentType(path).
  • Glassfish 5.0 Bug Joda Time 9 novembre 2018
    There seems to have a bug of a missing dependency when starting a simple REST Web App (using JPA).It complains about Joda Time missing.
  • Monitor Traffic HTTP with TCPDump 23 octobre 2018
    1. To monitor HTTP traffic including request and response headers and message body: tcpdump -A -s 0 'tcp port 80 and (((ip[2:2] - ((ip[0]&0xf)2)) != 0)' 2. To monitor HTTP traffic including request and response headers and message body from a particular source: tcpdump -A -s 0 'src and tcp port 80 and (((ip[2:2] […]
  • Swagger CodeGen Java - Share Model btw Client and Server 23 octobre 2018
    The OpenAPIs 3.0 Code Generator on is pretty much efficient (excepted that it does not handle correctly nesting of allOf/oneOf).A lack of the Java generator is that the generated Jersey server stub does not include a client, and the generated Java client is not based on Jersey but on Gson, so the Jackson annotation are […]
  • Swagger Codegen Jersey: exclude null JSON 5 octobre 2018
    By default, the generated Jersey model includes null values. In order to prevent this, you should edit the JacksonJsonProvider class and add the following line to the new ObjectMapper class:.setSerializationInclusion(JsonInclude.Include.NON_NULL)
  • XMLBeans String value from XMLObject 26 septembre 2018
    XmlObject implementations can be casted to SimpleValue if the XMLObject simply contains a string value.Example:((SimpleValue)obj).getStringValue();