testSaveAnnotationData caused an ERROR: String index out of range: -60

[dejanmilosavljevic]

Test error is:
testSaveAnnotationData caused an ERROR: String index out of range: -60
String index out of range: -60
java.lang.StringIndexOutOfBoundsException
at java.lang.String.substring(String.java:1938)
at java.lang.String.substring(String.java:1905)
at MetadataCore.MetadataGlobal$AnnotationData.SetKeywords(MetadataGlobal.java:471)
at MetadataCore.MetadataRDFConverterTest.testSaveAnnotationData(MetadataRDFConverterTest.java:322)