I have a JDBC driver jar (SAP HANA), that is build both as a bundle and an
MRJar file supporting JDKs 1.8, 9, 11. It works fine when I run Karaf using
JDK 1.8, but if I try to use a more recent JDK, the driver throws the following
Caused by: java.lang.AssertionError: Unexpected Java class loaded under Java
version 11 (maximum supported version is 8)
at
com.sap.db.jdbc.DriverSapDB._checkJavaVersion(DriverSapDB.java:2055) ~[?:?]
at
com.sap.db.jdbc.DriverSapDB.checkJavaVersionMaximum8(DriverSapDB.java:2030)
~[?:?]
at com.sap.db.jdbc.Driver.<clinit>(Driver.java:17) ~[?:?]
An SAP person says they think the classloader isn't MRJar aware and is loading
the incorrect class. I most recently tried this with OpenJDK 14.x. Since OSGi
involves lots of classloader magic, might that be the case or might something
else be going on here?
Thanks and regards,
Scott Leschke
