While starting Nexus I was getting following error, this was on a machine that was running at 1GB of memory. Error occurred during initialization of VM Could not reserve enough space for object heap So the solution was to edit /usr/local/nexus/bin/jws/wrapper.conf and add wrapper.java.additional.4=-Xmx128m parameter this setup java to use only 128mb of memory for …
This is one way of creating a group by like functionality for collections using google guava Multimap and Function. Code is straight forward we simply use the index method of the Multimap to group our data by, in here we use our 2 column to group it by the department. Sample output key = Dev …
Implementing GroupBy using Google guava Multimap and Function Read More »
So here is a problem I was running into, I usually use rich:modalpanel just to display some data to the user, but the other day I needed to collect some input. After happily submitting my page all the submitted values were null, what the hell. After some research here are my conclusions on this problem. …
Rich modalpanel events not populating form values Read More »
This is my helper method for invoking webservices from java. One bonus perk is that this handles the exception when we are using self signed certificates by providing our own HostnameVerifier. This could be more generalized but all I needed was to invoke this one server. /** * Invoke webservice to retrive data * * …
This code will detach a entity from hibernate Entitymanger making it thus unmanaged entity. // Prepare workbook object to be used for cloning. Session session = (Session) entityManager.getDelegate(); session.evict(workbook); // same as detached workbook.setId(null);// Prepare workbook object to be used for cloning. Session session = (Session) entityManager.getDelegate(); session.evict(workbook); // same as detached workbook.setId(null);
Error that I am getting when trying to run mvn test on google protobuf library. [INFO] Executing tasks [INFO] ———————————————————————— [ERROR] BUILD ERROR [INFO] ———————————————————————— [INFO] An Ant BuildException has occured: Execute failed: java.io.IOException: Cannot run program "..\src\protoc": CreateProcess error=2, The system c annot find the file specified [INFO] ———————————————————————— [INFO] For more information, …
Ant BuildException Cannot run program “..\src\protoc” Read More »
Error that I am getting when trying to run mvn test on google protobuf library. [INFO] Executing tasks [INFO] ———————————————————————— [ERROR] BUILD ERROR [INFO] ———————————————————————— [INFO] An Ant BuildException has occured: Execute failed: java.io.IOException: Cannot run program "..\src\protoc": CreateProcess error=2, The system c annot find the file specified [INFO] ———————————————————————— [INFO] For more information, …
Ant BuildException Cannot run program “..\src\protoc” Read More »
This is a PowerPoint of presentation I gave for ISSA group in Oklahoma City, OK Here is listing of assets used during the presentation
Here is some regex to trim leading/trailing newlines carriage and spaces returns from some text. Without replacing ‘spaces’ just new lines/carriage returns. ^(\n|\r)+|(\n|\r)+\Z This will trim also spaces ^(\n|\r|\s)+|(\n|\r|\s)+\ZWithout replacing 'spaces' just new lines/carriage returns. ^(\n|\r)+|(\n|\r)+\Z This will trim also spaces ^(\n|\r|\s)+|(\n|\r|\s)+\Z Quick explanation might be in order. This regex consists of two parts, …
Triming leading and trailing new lines with regex. Read More »
Yet another fun day with hibernate. While working on ResourcePhaseListener for JSF attachment problem I run into following problem while trying to retrieve BLOB from MySQL db. org.hibernate.MappingException: No Dialect mapping for JDBC type: -4 No Dialect mapping for JDBC type: -4org.hibernate.MappingException: No Dialect mapping for JDBC type: -4 No Dialect mapping for JDBC type: …
