diff --git a/Ghidra/Debug/Debugger-isf/src/main/java/ghidra/program/model/data/ISF/AbstractIsfWriter.java b/Ghidra/Debug/Debugger-isf/src/main/java/ghidra/program/model/data/ISF/AbstractIsfWriter.java
index 9afd82d11e..00286cd8a9 100644
--- a/Ghidra/Debug/Debugger-isf/src/main/java/ghidra/program/model/data/ISF/AbstractIsfWriter.java
+++ b/Ghidra/Debug/Debugger-isf/src/main/java/ghidra/program/model/data/ISF/AbstractIsfWriter.java
@@ -44,7 +44,7 @@ public abstract class AbstractIsfWriter implements Closeable {
 	protected JsonArray objects = new JsonArray();
 
 	public AbstractIsfWriter(Writer baseWriter) throws IOException {
-		if (writer != null) {
+		if (baseWriter != null) {
 			this.writer = new JsonWriter(baseWriter);
 			writer.setIndent("  ");
 		}
diff --git a/Ghidra/Debug/Debugger-isf/src/main/java/ghidra/program/model/data/ISF/IsfDataTypeWriter.java b/Ghidra/Debug/Debugger-isf/src/main/java/ghidra/program/model/data/ISF/IsfDataTypeWriter.java
index e12ebf42a1..195b64b519 100644
--- a/Ghidra/Debug/Debugger-isf/src/main/java/ghidra/program/model/data/ISF/IsfDataTypeWriter.java
+++ b/Ghidra/Debug/Debugger-isf/src/main/java/ghidra/program/model/data/ISF/IsfDataTypeWriter.java
@@ -84,7 +84,6 @@ public class IsfDataTypeWriter extends AbstractIsfWriter {
 
 	private List<Address> requestedAddresses = new ArrayList<>();
 	private List<String> requestedSymbols = new ArrayList<>();
-	// private List<String> requestedTypes = new ArrayList<>();
 	private List<DataType> requestedDataTypes = new ArrayList<>();
 	private boolean skipSymbols = false;
 	private boolean skipTypes = false;
@@ -99,6 +98,7 @@ public class IsfDataTypeWriter extends AbstractIsfWriter {
 	 */
 	public IsfDataTypeWriter(DataTypeManager dtm, List<DataType> target, Writer baseWriter) throws IOException {
 		super(baseWriter);
+		this.baseWriter = baseWriter;
 		this.dtm = dtm;
 		if (dtm != null) {
 			dataOrganization = dtm.getDataOrganization();
@@ -113,10 +113,15 @@ public class IsfDataTypeWriter extends AbstractIsfWriter {
 		enums = new JsonObject();
 		functions = new JsonObject();
 		symbols = new JsonObject();
-		requestedDataTypes = target;
+		requestedDataTypes = target == null ? new ArrayList<>() : target;
 		STRICT = true;
 	}
 
+	public JsonObject getRootObject(TaskMonitor monitor) throws CancelledException, IOException {
+		genRoot(monitor);
+		return data;
+	}
+	
 	@Override
 	protected void genRoot(TaskMonitor monitor) throws CancelledException, IOException {
 		genMetadata();
diff --git a/Ghidra/Features/Sarif/src/main/java/sarif/export/data/ExtIsfDataTypeWriter.java b/Ghidra/Features/Sarif/src/main/java/sarif/export/data/ExtIsfDataTypeWriter.java
index 4f94119d6d..800ae08147 100644
--- a/Ghidra/Features/Sarif/src/main/java/sarif/export/data/ExtIsfDataTypeWriter.java
+++ b/Ghidra/Features/Sarif/src/main/java/sarif/export/data/ExtIsfDataTypeWriter.java
@@ -19,6 +19,8 @@ import java.io.IOException;
 import java.io.Writer;
 import java.util.List;
 
+import com.google.gson.JsonObject;
+
 import ghidra.program.model.data.Array;
 import ghidra.program.model.data.BitFieldDataType;
 import ghidra.program.model.data.BuiltInDataType;
@@ -50,6 +52,11 @@ public class ExtIsfDataTypeWriter extends IsfDataTypeWriter {
 		STRICT = false;
 	}
 
+	public JsonObject getRootObject(TaskMonitor monitor) throws CancelledException, IOException {
+		genRoot(monitor);
+		return root;
+	}
+	
 	@Override
 	protected void genRoot(TaskMonitor monitor) throws CancelledException, IOException {
 		super.genRoot(monitor);