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TMS-29: Code clean up after merge.

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This commit is contained in:
Harald Kuhr 2014-01-02 13:25:37 +01:00
parent 0ded2f211a
commit 14e12eb2c1
1 changed files with 7 additions and 8 deletions
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15
servlet/src/main/java/com/twelvemonkeys/servlet/image/IIOProviderContextListener.java
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@ -28,15 +28,14 @@
package com.twelvemonkeys.servlet.image;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.imageio.ImageIO;
import javax.imageio.spi.IIORegistry;
import javax.imageio.spi.ServiceRegistry;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* Takes care of registering and de-registering local ImageIO plugins (service providers) for the servlet context.
@ -69,13 +68,13 @@ public final class IIOProviderContextListener implements ServletContextListener
Class<?> category = categories.next();
Iterator<?> providers = registry.getServiceProviders(category, localFilter, false);
// Copy the providers, deregistering while iterating over providers can lead to ConcurrentModificationExceptions.
List<Object> providerObjects = new ArrayList<Object>();
// Copy the providers, as de-registering while iterating over providers will lead to ConcurrentModificationExceptions.
List<Object> providersCopy = new ArrayList<Object>();
while (providers.hasNext()) {
providerObjects.add(providers.next());
providersCopy.add(providers.next());
}
for (Object provider : providerObjects) {
for (Object provider : providersCopy) {
registry.deregisterServiceProvider(provider);
event.getServletContext().log(String.format("Unregistered locally installed provider class: %s", provider.getClass()));
}