Here you will find commonly asked questions of the ResCarta support team...
Latest JAVA ISSUES
We have suggested using Oracle (previously Sun Microsystems) JAVA for many years, but recent events has changed our thinking.
Oracle will no longer provide free continuing support (updates) for OpenJDK LTS versions at https://jdk.java.net
AdoptOpenJDK does provide support at https://adoptopenjdk.net/ .
AdoptOpenJDK is now distributing OpenJDK msi installers. The installers will optionally updated the PATH and JAVA_HOME. We recommend removing Oralcle JAVA with the operating system supported method and installing OpenJDK 11 LTS. Version 7.0.2 of the ResCarta Toolkit supports OpenJDK 11.
AdoptOpenJDK is also providing updates to OpenJDK 8.
The most asked question concerns the use of 32bit JAVA on a 64bit machine. It you are using a 64bit operating system, download the 64bit JAVA from Oracle. The current url for JAVA 8 from Oracle is.
Take care not to update to unsupported versions of 9, or 10
For those running "ix" operating systems ...
$ sudo apt-get install openjdk-11-jdk
$ su -c "yum install java-1.8.0-openjdk"
During the installation of the ResCarta Toolkit you will see that the installer selects 32bit or 64bit options based on your installed JAVA. If you run 32bit JAVA on a 64bit machine you will get poor performance and have access to only one gigabyte of memory.
Most ResCarta problems over the years involve early untested releases of JAVA by Oracle. See the history of releases at wikipedia. If you see a release date within a day or two of another release date, chances are you will be experiencing some malfunction. We advise updating JAVA only if you need to do so for some known reason.
Harvard's JHOVE and ResCarta Data
Jhove invalidates some ResCarta accepted tiff images.
If you are running the Harvard file validator called JHOVE and receive the following error on tiff images in your ResCarta collection.files
“Status: Not well-formed”
Add the following line to your configuration file (jhove.conf) in your home directory or create a custom configuration file with this line and use the -c parameter with JHOVE.
Change your tiff module from...
to the following...
After this parameter has been added you will not longer get a “Not well formed” message but you will get an informational message about the values that may not be word aligned. These images have addition tags not modified by the ResCarta data conversion tool and are acceptable TIFF images. The images will then be noted as " Well-Formed and valid" by JHOVE with an informational message like the one below...
InfoMessage: Value offset not word-aligned: 493
JHOVE and the Unknown TIFF IFD tags 5687,5688 and 5689.
These tags are the location of the ResCarta metadata which are defined in the ResCarta specifications. These tags were declared PUBLIC when regisstered with the TIFF tag registry with Adobe Corporation. 5697 = MODS XML data, 5688 = Word data, 5689 = Word location and font data.
InfoMessage: Unknown TIFF IFD tag: 5687
InfoMessage: Unknown TIFF IFD tag: 5688
InfoMessage: Unknown TIFF IFD tag: 5689