Assert.assertEquals("ACLs mismatch", acls, launchCtx.getApplicationACLs());
Credentials launchCredentials = new Credentials();
DataInputByteBuffer dibb = new DataInputByteBuffer();
dibb.reset(launchCtx.getTokens());
launchCredentials.readTokenStorageStream(dibb);
// verify all tokens specified for the task attempt are in the launch context
for (Token<? extends TokenIdentifier> token : credentials.getAllTokens()) {
Token<? extends TokenIdentifier> launchToken =
launchCredentials.getToken(token.getService());