Zheng Tech Blog

Now JDK 7 has been out for a while (JDK 8 is out too as of writing). There are some caveats using WebLogic Server with JDK 7 you might want to know, not matter it's on 10.3.6 or 12c. 1. Out of memory error on starting Admin Server. This error is caused by the fact that the new JVM requires more PermGen space. Depending on your RAM, you can set it >350m. In my case, I would set the perm size to 512M. -XX:MaxPermSize=512m 2. In some cases, the new compiler generates larger byte code. It is possible that a large method may exceed the 64KB limit per method. In this situation, you may need to refactor the method. This seems to only affect WebLogic 10.3.6 3. Classes may have been removed that are from the internal package sun.*, or that have been marked as deprecated in a previous version of the JVM. If an application uses these removed methods, a ClassNotFound exception will occur. 4. JDBC 4.1 is introduced in JDK7. JDBC 4.1 methods are not currently supported in ...

As of late April 2014, FrameworkFolders support on Oracle WebCenter Portal has been enabled by Oracle WebCenter 11.1.1.8.3 . Previously, Oracle WebCenter Portal only supported Folders_g. Now it's time to review the essentials on what , why and how . What's Framework Folders? Introduced in WebCenter PS5, the framework folders (also called folders component) provide a hierarchical folder interface, similar to conventional file system, for organizing and locating some or all of the content in the repository. It's a scalable, enterprise solution and is meant to be a replacement for contribution folders (folders_g component). Why it's better than Folders_g (FrameworkFolders vs. Folders_g)? With the FrameworkFolders component as the underlying folder architecture, many functionalities and features have been made available. Mass metadata updates with folders (metadata propagation):  "Query Folders" is added in the FrameworkFolders component. Query fold...