Copy operation would recurse indefinitely if memory permitted

microKernel.commit("", "*\"/a\":\"/a/b\"", null, null);

java.lang.OutOfMemoryError: Java heap space
	at java.util.Arrays.copyOfRange(Arrays.java:3209)
	at java.lang.String.<init>(String.java:215)
	at java.lang.StringBuilder.toString(StringBuilder.java:430)
	at org.apache.jackrabbit.oak.commons.PathUtils.concat(PathUtils.java:320)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)
	at org.apache.jackrabbit.mk.model.CommitBuilder.copyStagedNodes(CommitBuilder.java:293)