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Add note about NO_GCE_CHECK to Metadata 404 Error #205

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Nov 12, 2018
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Add note about NO_GCE_CHECK to Metadata 404 Error #205

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5 changes: 3 additions & 2 deletions oauth2_http/java/com/google/auth/oauth2/ComputeEngineCredentials.java
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Original file line number Diff line number Diff line change
Expand Up @@ -155,8 +155,9 @@ public AccessToken refreshAccessToken() throws IOException {
if (statusCode == HttpStatusCodes.STATUS_CODE_NOT_FOUND) {
throw new IOException(String.format("Error code %s trying to get security access token from"
+ " Compute Engine metadata for the default service account. This may be because"
+ " the virtual machine instance does not have permission scopes specified.",
statusCode));
+ " the virtual machine instance does not have permission scopes specified."
+ " It is possible to skip checking for Compute Engine metadata by specifying the environment "
+ " variable " + DefaultCredentialsProvider.NO_GCE_CHECK_ENV_VAR + "=true.", statusCode));
}
if (statusCode != HttpStatusCodes.STATUS_CODE_OK) {
throw new IOException(String.format("Unexpected Error code %s trying to get security access"
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