Bouncy Castle exception about dark-exchange

[macourtney]

Notes from Steve:

I have not seen this error message before. However, a web search indicates that its likely that bouncy castle class files are being loaded from different jars - that are not compatible with each other. I inspected a couple of jars in the lib directory and found that ...
i2p-0.8.5-0.jar contains org.bouncycastle.crypto.Digest.class
bcprov-jdk16-136.jar contains org.bouncycastle.crypto.Digest.class

I attempted to confirm the cause by executing Java with the -verbose option to record the jars from which the org.bouncycastle.crypto classes are loaded. I found that they are all loaded from bcprov-jdk16-136.jar. I tried removing bcprov-jdk16-136.jar from the lib directory, and the application fails to launch because it cannot find org.bouncycastle.jce.provider.BouncyCastleProvider.

I tried upgrading bcprov-jdk16-136.jar to bcprov-jdk16-140.jar and same problem.

I explicitly set the class path jar file order to ...cp=lib/clj-record-1.0.1.jar
cp=$cp:lib/clojure-1.2.1.jar
cp=$cp:lib/clojure-contrib-1.2.0.jar
cp=$cp:lib/clojure-tools-1.0.0.jar
cp=$cp:lib/commons-codec-1.5.jar
cp=$cp:lib/commons-lang-2.5.jar
cp=$cp:lib/darkexchange-1.0.0-BETA.jar
cp=$cp:lib/drift-1.2.1.jar
cp=$cp:lib/h2-1.2.137.jar
cp=$cp:lib/i2p-0.8.5-0.jar
cp=$cp:lib/log4j-1.2.16.jar
cp=$cp:lib/miglayout-3.7.4.jar
cp=$cp:lib/mstreaming-0.8.5-0.jar
cp=$cp:lib/seesaw-1.0.6.jar
cp=$cp:lib/streaming-0.8.5-0.jar
cp=$cp:lib/bcprov-jdk16-140.jar
cp=$cp:resources

But the same problem occurred.

Then I removed the org.bouncycastle package from i2p-0.8.5-0.jar with the Ubuntu File Roller graphical utility, and the problem went away. The search feature returns no results for the couple of choices that I tried, but there was no security exception.

Here is the relevant part of the log ...
INFO [config.db-config]: Environment: :production
DEBUG [darkexchange.database.h2]: Executing query: ["SELECT * FROM schema_info LIMIT 1"]
INFO [darkexchange.database.migrate]: schema_info exists
DEBUG [darkexchange.database.h2]: Executing query: ["SELECT * FROM schema_info LIMIT 1"]
INFO [drift.runner]: Current database version: 7
INFO [drift.runner]: Updating to version: 7
INFO [drift.runner]: No changes were made to the database.
INFO [darkexchange.model.server]: Initializing server.
INFO [darkexchange.model.listeners.listener-init]: Adding listeners.
INFO [darkexchange.model.actions.action-init]: Adding actions.

Hope this is helpful.
-Steve

[macourtney]

I've created a new I2P jar without the reference to bouncy castle and uploaded it to my clojars account. I haven't heard of any issues since.