Examples of org.osgi.framework.BundleContext.ungetService()

org.osgi.framework.BundleContext.ungetService()
Releases the service object for the service referenced by the specified {@code ServiceReference} object. If the context bundle's use count forthe service is zero, this method returns {@code false}. Otherwise, the context bundle's use count for the service is decremented by one.
The service object must no longer be used and all references to it should be destroyed when a bundle's use count for the service drops to zero.
The following steps are required to release the service object:
1. If the context bundle's use count for the service is zero or the service has been unregistered, {@code false} is returned.
2. The context bundle's use count for the service is decremented by one.
3. If the context bundle's use count for the service is now zero and the service has {@link Constants#SCOPE_BUNDLE bundle} or{@link Constants#SCOPE_PROTOTYPE prototype} scope, the{@link ServiceFactory#ungetService(Bundle,ServiceRegistration,Object)}method is called to release the service object for the context bundle.
4. {@code true} is returned.
@param reference A reference to the service to be released. @return {@code false} if the context bundle's use count for the serviceis zero or if the service has been unregistered; {@code true}otherwise. @throws IllegalStateException If this BundleContext is no longer valid. @throws IllegalArgumentException If the specified{@code ServiceReference} was not created by the same frameworkinstance as this {@code BundleContext}. @see #getService(ServiceReference) @see ServiceFactory

            }
        }
        finally
        {
            if (paRef != null)
                bc.ungetService(paRef);
            if (cpaRef != null)
                bc.ungetService(cpaRef);
        }
    }

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        finally
        {
            if (paRef != null)
                bc.ungetService(paRef);
            if (cpaRef != null)
                bc.ungetService(cpaRef);
        }
    }


    private static final void print(PermissionInfo[] infos, PrintWriter pw)
    {

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            if ( service != null )
            {
                BundleContext bundleContext = m_componentManager.getBundleContext();
                if ( bundleContext != null )
                {
                    bundleContext.ungetService( ref.getRef() );
                }
            }
        }


        protected void tracked( int trackingCount )

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            // thrown by wireAdmin.getWires(null) - will not happen, we are not setting filter.
        }
        finally
        {
            if (ref != null)
                bc.ungetService(ref);
        }
    }


    private static final void print(Wire wire, PrintWriter pw)
    {

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        bundleContext2.getService( reference2 );
        findComponentConfigurationByName(pid, ComponentConfigurationDTO.ACTIVE);
        TestCase.assertNotNull( SimpleComponent.INSTANCE );


        // unget the service once -- must still be active !
        bundleContext2.ungetService( reference2 );
        findComponentConfigurationByName(pid, ComponentConfigurationDTO.ACTIVE);
        TestCase.assertNotNull( SimpleComponent.INSTANCE );


        // unget the service second time -- must be registered and null now
        bundleContext.ungetService( reference1 );

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                Bundle bundle = ref.getBundle();
                if (bundle != null) {
                    BundleContext ctx = getBundleContextForServiceLookup();
                    if (ctx != null) {
                      try {
                          ctx.ungetService(ref);
                      } catch (IllegalStateException ise) {
                        // we don't care it doesn't exist so, shrug.
                      }
                    }
                }

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        bundleContext2.getService( reference2 );
        TestCase.assertEquals( Component.STATE_ACTIVE, component.getState() );
        TestCase.assertNotNull( SimpleComponent.INSTANCE );


        // unget the service once -- must still be active !
        bundleContext2.ungetService( reference2 );
        TestCase.assertEquals( Component.STATE_ACTIVE, component.getState() );
        TestCase.assertNotNull( SimpleComponent.INSTANCE );


        // unget the service second time -- must be registered and null now
        bundleContext.ungetService( reference1 );

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      return isSigned;
    } catch (IOException e) {
      throw (IllegalStateException) new IllegalStateException()
          .initCause(e);
    } finally {
      bundleContext.ungetService(certRef);
    }
  }


  /**
   * @return

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        } catch (InvalidSyntaxException e) {
            LOGGER.error("Syntax error looking up service {} using filter {}", EventHandler.class.getName(), EventHandler.MANAGED_FILTER);
        } finally {
            if (references != null) {
                for (ServiceReference ref : references) {
                    bundleContext.ungetService(ref);
                }
            }
        }
        return result;
    }

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                    tldScanStream(url, new TldLocation(entry.getName(), entry.getJarUrl().toExternalForm()));
                } else {
                    tldScanStream(url, new TldLocation(entry.getName(), new BundleJarResource(entry.getBundle())));
                }
            }
            bundleContext.ungetService(reference);            
        }
    }
    
    private void tldScanStream(URL url, TldLocation location) throws IOException {
        InputStream in = url.openStream();

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