Fuzz introspector: POIHMEFFuzzer
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzzer calltree

0 [org.apache.poi.POIHMEFFuzzer].fuzzerTestOneInput(byte[]) [function] [call site] 00000
1 [java.io.ByteArrayInputStream].<init>(byte[]) [function] [call site] 00001
1 [org.apache.poi.hmef.HMEFMessage].<init>(java.io.ByteArrayInputStream) [function] [call site] 00002
1 [org.apache.poi.hmef.HMEFMessage].getAttachments() [function] [call site] 00003
2 [java.util.Collections].unmodifiableList(java.util.List<org.apache.poi.hmef.Attachment>) [function] [call site] 00004
1 [org.apache.poi.hmef.HMEFMessage].getBody() [function] [call site] 00005
2 [org.apache.poi.hmef.HMEFMessage].getString(org.apache.poi.hsmf.datatypes.MAPIProperty) [function] [call site] 00006
3 [org.apache.poi.hmef.HMEFMessage].getMessageMAPIAttribute(org.apache.poi.hsmf.datatypes.MAPIProperty) [function] [call site] 00007
3 [org.apache.poi.hmef.attribute.MAPIStringAttribute].getAsString(org.apache.poi.hmef.attribute.MAPIAttribute) [function] [call site] 00008
4 [org.apache.poi.hmef.attribute.MAPIStringAttribute].getDataString() [function] [call site] 00009
4 [org.apache.poi.hmef.attribute.MAPIRtfAttribute].getDataString() [function] [call site] 00010
4 [org.apache.logging.log4j.Logger].atWarn() [function] [call site] 00011
4 [org.apache.poi.hmef.attribute.MAPIStringAttribute].log(String,org.apache.poi.hmef.attribute.MAPIAttribute) [function] [call site] 00012
1 [org.apache.poi.hmef.HMEFMessage].getMessageAttributes() [function] [call site] 00013
2 [java.util.Collections].unmodifiableList(java.util.List<org.apache.poi.hmef.attribute.TNEFAttribute>) [function] [call site] 00014
1 [org.apache.poi.hmef.HMEFMessage].getSubject() [function] [call site] 00015
2 [org.apache.poi.hmef.HMEFMessage].getString(org.apache.poi.hsmf.datatypes.MAPIProperty) [function] [call site] 00016
1 [org.apache.poi.hmef.HMEFMessage].getMessageMAPIAttributes() [function] [call site] 00017
2 [java.util.Collections].unmodifiableList(java.util.List<org.apache.poi.hmef.attribute.MAPIAttribute>) [function] [call site] 00018