Possible loop in thredds.client.catalog graph?

[JohnLCaron]

Adding this method to DatasetNode:
@OverRide
public String toString() {
return MoreObjects.toStringHelper(this)
.add("parent", parent)
.add("name", name)
.add("flds", flds)
.toString();
}

causes a test failure:

thredds.server.cdmr.TestCdmRemoteServer2.testUrlReading

Error Message
java.lang.StackOverflowError

Stacktrace
java.lang.StackOverflowError
at java.util.HashMap$EntryIterator.(HashMap.java:1474)
at java.util.HashMap$EntrySet.iterator(HashMap.java:1014)
at java.util.AbstractMap.toString(AbstractMap.java:547)
at java.util.Collections$UnmodifiableMap.toString(Collections.java:1493)
at java.lang.String.valueOf(String.java:2994)
at java.lang.StringBuilder.append(StringBuilder.java:131)
at com.google.common.base.MoreObjects$ToStringHelper.toString(MoreObjects.java:353)
at thredds.client.catalog.DatasetNode.toString(DatasetNode.java:124)
at java.lang.String.valueOf(String.java:2994)
at java.lang.StringBuilder.append(StringBuilder.java:131)
at com.google.common.base.MoreObjects$ToStringHelper.toString(MoreObjects.java:353)
at thredds.client.catalog.DatasetNode.toString(DatasetNode.java:124)
....