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java.lang.ClassNotFoundException: com.microsoft.jdbc.sqlserver.SQLServerDriver
        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:169)
        at S2jsp.sg.ch03.ConnectionManager.GetConnection(ConnectionManager.java:26)
        at S2jsp.sg.ch03.FirstLevelTitleDBJava.main(FirstLevelTitleDBJava.java:25)
Exception in thread "main" java.lang.NullPointerException
        at S2jsp.sg.ch03.FirstLevelTitleDBJava.main(FirstLevelTitleDBJava.java:26)
Java Result: 1

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