API Java Tomcat 6: UnsatisfiedLinkError (2.4.16 + p1) libdb_java46.dll

On Windows XP, 1.6.0/11 Sun JDK and Tomcat 6.0.18, I get an error for 2.4.16/patch.1 DB XML when the JAVA virtual machine attempts to load the wrong version of the libdb_java46 library.

I have not changed the build type, so everything compiles in the debug version. This means that the library in question is called libdb_java46d.dll (note the 'd' at the end).

It works fine from the command line using javac and java, with the DB XML in the WAY bin\debug directory, of course.

However, when you try to run the Tomcat 6, I see an UnsatisfiedLinkError as the Tomcat load loading XML DB classloader tries to load libdb_java46.dll (note the lack of "d"), which I have never built.

The class responsible for loading dbxml.jar and db.jar charger is the common.loader (for use by the server and all the webapps load classes), which is taken either by adding the pots to $Tomcat / lib or modify the common.loader in conf/catalina.properties include jars.

I made sure the bin\debug directory is in the path or in java.library.path when Tomcat is started as a service.

I uninstalled previous versions of XML DB, while the news is the only one on the machine.

Why is there an attempt to load the version without debugging when all DB XML is compiled as debug version?

Michael Ludwig

Michael

Java API for XML DB begins with the first attempts to load libraries release builds, and default and then tries to load the debug versions. If it fails to find the two versions then the UnsatisfiedLinkError is thrown the output library registration, even if she sought the debugging library.

So the question here is not that he's trying to load only the output library, but it can't find your library of debugging for a reason any. You seemed to have thought of the most common mistakes that cause the UnsatisfiedLinkError. So all I can recommend is the thread Unix UnsatisfiedLinkError with tomcat and places that links to, to see if there may be another reason why Tomcat isn't finding one of your libraries.

Lauren Foutz

Tags: Database

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