I'm using my App Engine to allow an app to upload a file.
The file is received in HTTP POST, and I'm trying to store it in Google
Storage.
My Server code;
GcsFileOptions instance = GcsFileOptions.getDefaultInstance();
GcsFilename fileName = new GcsFilename("mate-server-2017", directory + "/" +
filename);
GcsOutputChannel outputChannel;
log.info("Saving " + fileName + " to " + instance);
outputChannel = gcsService.createOrReplace(fileName, instance);
copy(req.getInputStream(), Channels.newOutputStream(outputChannel));
The Log entry in the middle yields;
com.mate.server.MateServlet: Saving GcsFilename(mate-server-2017,
425020376158645/1497796971438) to GcsFileOptions [userMetadata={}]
This results in exception;
com.google.appengine.tools.cloudstorage.RetriesExhaustedException:
RetryHelper(5.644 s, 10 attempts,
com.google.appengine.tools.cloudstorage.GcsServiceImpl$1@1af95fcc): Too many
failures, giving up
at
com.google.appengine.tools.cloudstorage.RetryHelper.doRetry(RetryHelper.java:127)
at
com.google.appengine.tools.cloudstorage.RetryHelper.runWithRetries(RetryHelper.java:166)
at
com.google.appengine.tools.cloudstorage.RetryHelper.runWithRetries(RetryHelper.java:156)
at
com.google.appengine.tools.cloudstorage.GcsServiceImpl.createOrReplace(GcsServiceImpl.java:70)
at com.mate.server.MateServlet.saveFile(MateServlet.java:128)
at com.mate.server.MateServlet.doPost(MateServlet.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
... <Cut by submitter>
Caused by: java.io.IOException: java.lang.NullPointerException
at
com.google.appengine.tools.cloudstorage.dev.LocalRawGcsService$BlobStorageAdapter.getInstance(LocalRawGcsService.java:186)
at
com.google.appengine.tools.cloudstorage.dev.LocalRawGcsService$BlobStorageAdapter.access$000(LocalRawGcsService.java:109)
at
com.google.appengine.tools.cloudstorage.dev.LocalRawGcsService.ensureInitialized(LocalRawGcsService.java:194)
at
com.google.appengine.tools.cloudstorage.dev.LocalRawGcsService.beginObjectCreation(LocalRawGcsService.java:249)
at
com.google.appengine.tools.cloudstorage.dev.LocalRawGcsService.beginObjectCreation(LocalRawGcsService.java:92)
at
com.google.appengine.tools.cloudstorage.GcsServiceImpl$1.call(GcsServiceImpl.java:74)
at
com.google.appengine.tools.cloudstorage.GcsServiceImpl$1.call(GcsServiceImpl.java:70)
at
com.google.appengine.tools.cloudstorage.RetryHelper.doRetry(RetryHelper.java:108)
... 34 more
Caused by: java.lang.NullPointerException
at
com.google.appengine.tools.cloudstorage.dev.LocalRawGcsService$BlobStorageAdapter.<init>(LocalRawGcsService.java:123)
at
com.google.appengine.tools.cloudstorage.dev.LocalRawGcsService$BlobStorageAdapter.getInstance(LocalRawGcsService.java:184)
... 41 more
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