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## com.sun.jersey.core.osgi
Class OsgiRegistry

    java.lang.Object
      com.sun.jersey.core.osgi.OsgiRegistry

All Implemented Interfaces:
  java.util.EventListener, org.osgi.framework.BundleListener, org.osgi.framework.SynchronousBundleListener

    public final class OsgiRegistry

extends java.lang.Object
implements org.osgi.framework.SynchronousBundleListener

Utility class to deal with OSGi runtime specific behavior. This is mainly to handle META-INF/services lookup and generic/application class lookup issue in OSGi. When OSGi runtime is detected by the `ReflectionHelper` class, an instance of OsgiRegistry is created and associated with given OSGi BundleContext. META-INF/services entries are then being accessed via the OSGi Bundle API as direct ClassLoader#getResource() method invocation does not work in this case within OSGi.

Author:
  Jakub Podlesak (jakub.podlesak at oracle.com), Michal Gajdos (michal.gajdos at oracle.com)

Method Summary
`void` | `bundleChanged(org.osgi.framework.BundleEvent event)`
`java.lang.Class<?>` | `classForNameWithException(java.lang.String className)` Get the Class from the class name.
`static OsgiRegistry` | `getInstance()` Returns an `OsgiRegistry` instance.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Method Detail

### getInstance

    public static OsgiRegistry getInstance()

  Returns an `OsgiRegistry` instance. Call this method only if sure that the application is running in OSGi environment, otherwise a call to this method can lead to an `ClassNotFoundException`.

  Returns:
    an `OsgiRegistry` instance.

### bundleChanged

    public void bundleChanged(org.osgi.framework.BundleEvent event)

  Specified by:
    `bundleChanged` in interface `org.osgi.framework.BundleListener`

### classForNameWithException

    public java.lang.Class<?> classForNameWithException(java.lang.String className)
                                                 throws java.lang.ClassNotFoundException

  Get the Class from the class name.

  The context class loader will be utilized if accessible and non-null. Otherwise the defining class loader of this class will be utilized.

  Parameters:
    `className` - the class name.
  Returns:
    the Class, otherwise null if the class cannot be found.
  Throws:
    `java.lang.ClassNotFoundException` - if the class cannot be found.

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