Pattern selector

Most relevant patterns first. Most helpful ones displayed. Click here to show all.

    Your stack trace compared to the selected pattern

    Jump to solutionsExpand frames
    java.lang.NullPointerException
        at com.datastax.driver.core.HostConnectionPool.waitForConnection(HostConnectionPool.java:203)
        at com.datastax.driver.core.HostConnectionPool.borrowConnection(HostConnectionPool.java:107)
        at com.datastax.driver.core.RequestHandler.query(RequestHandler.java:112)
        at com.datastax.driver.core.RequestHandler.sendRequest(RequestHandler.java:93)
    3 frames hidden