Exception while parsing XSD with double hyphen

00:20:52.657 /opt/jenkins/workspace/master/tools_generator-nuxeo-master/tmp/tmp-package/src/main/assemble/assembly.xml:140: java.lang.RuntimeException: org.dom4j.DocumentException: Error on line 7 of document  : The string "--" is not permitted within comments.
00:20:52.657 	at org.nuxeo.studio.components.common.bundle.RegistrationInfo.read(RegistrationInfo.java:51)
...
00:20:52.658 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
00:20:52.658 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
00:20:52.658 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
00:20:52.658 	at java.lang.Thread.run(Thread.java:748)
00:20:52.658 Caused by: org.dom4j.DocumentException: Error on line 7 of document  : The string "--" is not permitted within comments.
00:20:52.658 	at org.dom4j.io.SAXReader.read(SAXReader.java:466)
00:20:52.658 	at org.dom4j.io.SAXReader.read(SAXReader.java:329)
00:20:52.658 	at org.nuxeo.studio.components.common.bundle.RegistrationInfo.read(RegistrationInfo.java:48)
00:20:52.658 	... 
00:20:52.658 Caused by: org.xml.sax.SAXParseException; lineNumber: 7; columnNumber: 130; The string "--" is not permitted within comments.
00:20:52.658 	at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
...
00:20:52.658 	at org.dom4j.io.SAXReader.read(SAXReader.java:449)
00:20:52.658 	... 66 more