My coworker was moving files around in our SVN repo and we end up losing the history of the file. It seem it was because of our IDE (eclipse svn at the time), after some searching we manage to find a way to do it by using the svn command rename & move. Doing everything […]
While trying to remove a element after creating a List from a array using the Array.asList(array[]) method I’ve stumbled on that error. java.lang.UnsupportedOperationException at java.util.AbstractList.add(AbstractList.java:131) at java.util.AbstractList.add(AbstractList.java:91) Then I remember this, list created by the Arrays.asList method are immutable Same goes for empty lists. So instead create a arraylist : List<String> list = new ArrayList<String>(Arrays.asList(split));
Our build server (jenkins) had that error BUILD FAILED com.jcraft.jsch.JSchException: java.net.NoRouteToHostException: No route to host Full stack trace below if you really need it. I assume there was a problem with where Jenkins was deploying the apps or at a issue trying to run integration test on the remote server. After talking to IT […]
Comparing and sorting Strings might not work out like you expected specially when your dealing with a language other than English. Normally comparing strings in done with simple Unicode ordering. If you want to have localized ordering (the kind expected by an end user) you need to use a Collator. Commonly used String methods such […]
My god sometime I bang my head on the wall to do something simple on oracle. So oracle don’t support limit so to do something simple has : SELECT f_name, l_name, age from employee_data ORDER BY age DESC LIMIT 20 become : SELECT f_name, l_name, age FROM ( SELECT f_name, l_name, age, ROWNUM r FROM […]
I was trying to update a table that using sql join but I kept getting ORA-00933 I tried the following: Using A SQL JOIN In A SQL UPDATE Statement Using A SQL JOIN In A SQL UPDATE Statement (www.bennadel.com) update table using inner join (venushuynh.wordpress.com) but I kept getting the ORA-00933 then tried this Oracle […]
Another problem I’ve it recently with saveOrUpdate that can be fix by using the same saveOrUpdate but give the class name. Using the session.saveOrUpdate(myObject) might give you a unknown entity while using the same method with the class name in parameter won’t. session.saveOrUpdate(myObject); //give a unknown entity session.saveOrUpdate(“MyObjectClassName”, MyObject); //Work The important difference between the […]
If you happen to rename your folder that contain your jsp and js, don’t forget to update the struts config (and the tiles). This will save your precious time even hours …
For some reason Oracle have no Boolean Since there is no BOOLEAN datatype in Oracle, as far as tables are concerned. CREATE TABLE BooleanTable (MyBool BOOLEAN); return : ORA-00902: invalid datatype But there is a BOOLEAN datatype in PL/SQL. What should we do instead? According to Tom at ThinkOracle you could create the table using […]
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