throw exception if residue type cannot be resolved

valasatava · valasatava · commit 222a8ae3f7b1 · 2020-06-27T15:50:04.000-07:00
diff --git a/biojava-structure/src/main/java/org/biojava/nbio/structure/io/mmtf/MmtfStructureReader.java b/biojava-structure/src/main/java/org/biojava/nbio/structure/io/mmtf/MmtfStructureReader.java
@@ -214,6 +214,9 @@ public void setGroupInfo(String groupName, int groupNumber,
 			char singleLetterCode, int sequenceIndexId, int secStructType) {
 		// Get the polymer type
 		ResidueType residueType = ResidueType.getResidueTypeFromString(chemCompType);
+		if (residueType == null)
+			throw new IllegalStateException("Couldn't resolve residue type for "+ chemCompType);
+
 		int polymerType = getGroupTypIndicator(residueType.polymerType);
 		switch (polymerType) {
 		case 1:
