Hi, I've a problem with fetch URL using appengine.. this is my code:
try {
URL url = new URL("http://www.example.com/atom.xml";);
BufferedReader reader = new BufferedReader(new
InputStreamReader(url.openStream()));
String line;
while ((line = reader.readLine()) != null) {
// ...
}
reader.close();
} catch (MalformedURLException e) {
// ...
} catch (Exception e) {
// ...
}
the error is:
java.lang.NullPointerException
at java.util.Collections.addAll(Unknown Source)
at sun.security.ssl.AbstractTrustManagerWrapper.<init>(Unknown Source)
at sun.security.ssl.SSLContextImpl.chooseTrustManager(Unknown Source)
at sun.security.ssl.SSLContextImpl.engineInit(Unknown Source)
at javax.net.ssl.SSLContext.init(Unknown Source)
at
com.google.appengine.api.urlfetch.dev.LocalURLFetchService.createNonvalidatingScheme(LocalURLFetchService.java:241)
at
com.google.appengine.api.urlfetch.dev.LocalURLFetchService.createHttpClient(LocalURLFetchService.java:263)
at
com.google.appengine.api.urlfetch.dev.LocalURLFetchService.getNonValidatingClient(LocalURLFetchService.java:508)
at
com.google.appengine.api.urlfetch.dev.LocalURLFetchService.access$100(LocalURLFetchService.java:82)
at
com.google.appengine.api.urlfetch.dev.LocalURLFetchService$7.run(LocalURLFetchService.java:422)
at
com.google.appengine.api.urlfetch.dev.LocalURLFetchService$7.run(LocalURLFetchService.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at
com.google.appengine.api.urlfetch.dev.LocalURLFetchService.doPrivilegedExecute(LocalURLFetchService.java:409)
at
com.google.appengine.api.urlfetch.dev.LocalURLFetchService.fetch(LocalURLFetchService.java:377)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at
com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.callInternal(ApiProxyLocalImpl.java:527)
at
com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.call(ApiProxyLocalImpl.java:481)
at
com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.call(ApiProxyLocalImpl.java:458)
at java.util.concurrent.Executors$PrivilegedCallable$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.util.concurrent.Executors$PrivilegedCallable.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
the same in a simple java app work fine..
I had test in local
can you help me?
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