Not visible Interface on persistence query

Alexis — Tue, 09 Sep 2014 14:41:36 -0400

Calling a query on a table with BLOBs (Files in Tables) using the jTDS-Driver I get a class-loader error:

java.lang.IllegalArgumentException: interface org.hibernate.engine.jdbc.WrappedBlob is not visible from class loader

My Solution was to switch to an other classloader:

  public synchronized void method() {

        Thread thread = Thread.currentThread();
        ClassLoader tempLoader = thread.getContextClassLoader();
        thread.setContextClassLoader(null);

        entityManager.createNativeQuery("select * from TSRPTBLB where TSBID = 1 ")
                       .getSingleResult();

        thread.setContextClassLoader(tempLoader);
  }

Will there be any other, cleaner way than switsching the classloader?

Thank you in advance

Questions Tagged With ivy

Not visible Interface on persistence query