ArrayIndexOutOfBoundsException when trying to report a template parsing error

Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
	at java.util.ArrayList.elementData(ArrayList.java:418) ~[na:1.8.0_72-internal]
	at java.util.ArrayList.get(ArrayList.java:431) ~[na:1.8.0_72-internal]
	at org.apache.tapestry5.internal.services.XMLTokenStream.token(XMLTokenStream.java:433) ~[tapestry-core-5.4-rc-1.jar:na]
	at org.apache.tapestry5.internal.services.XMLTokenStream.getLocation(XMLTokenStream.java:478) ~[tapestry-core-5.4-rc-1.jar:na]
	at org.apache.tapestry5.internal.services.SaxTemplateParser.parse(SaxTemplateParser.java:181) ~[tapestry-core-5.4-rc-1.jar:na]
	at org.apache.tapestry5.internal.services.TemplateParserImpl$1.invoke(TemplateParserImpl.java:61) ~[tapestry-core-5.4-rc-1.jar:na]
	at org.apache.tapestry5.internal.services.TemplateParserImpl$1.invoke(TemplateParserImpl.java:58) ~[tapestry-core-5.4-rc-1.jar:na]
	at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:82) ~[tapestry-ioc-5.4-rc-1.jar:na]
	... 158 common frames omitted

java.io.IOException: Cannot open a steam for a resource that references a directory inside a JAR file (jar:file:/home/jochen/.gradle/caches/modules-2/files-2.1/org.apache.tapestry/tapestry-core/5.4-rc-1/94f01ef2bc48c66a8927cd814c885d218caab3fe/tapestry-core-5.4-rc-1.jar!/org/apache/tapestry5/corelib/components/Grid.tml).