Apache TinkerPop
Copyright 2015-2017 The Apache Software Foundation.

This product includes software developed at
The Apache Software Foundation (http://www.apache.org/).

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Activiti
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Activiti BPM Platform
Copyright 2010-2014 Alfresco Software, Ltd.

gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/io/graphml/GraphMLWriterHelper.java
contains DelegatingXMLStreamWriter.java and IndentingXMLStreamWriter.java from
https://github.com/Activiti/Activiti/tree/activiti-5.16/modules/activiti-bpmn-converter/src/main/java/org/activiti/bpmn/converter

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Apache Kerby
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Apache Kerby
Copyright 2015-2016 The Apache Software Foundation

gremlin-server/src/main/java/org/apache/tinkerpop/gremlin/server/auth/JaasKrbUtil.java
from
https://github.com/apache/directory-kerby/blob/kerby-all-1.0.0-RC2/kerby-kerb/kerb-simplekdc/src/main/java/org/apache/kerby/kerberos/kerb/client/JaasKrbUtil.java
