diff --git a/extensions/barrage/src/main/java/io/deephaven/extensions/barrage/BarrageTypeMapping.java b/extensions/barrage/src/main/java/io/deephaven/extensions/barrage/BarrageTypeMapping.java
deleted file mode 100644
index c92f2615e83..00000000000
--- a/extensions/barrage/src/main/java/io/deephaven/extensions/barrage/BarrageTypeMapping.java
+++ /dev/null
@@ -1,142 +0,0 @@
-//
-// Copyright (c) 2016-2024 Deephaven Data Labs and Patent Pending
-//
-package io.deephaven.extensions.barrage;
-
-import com.google.flatbuffers.FlatBufferBuilder;
-import com.google.protobuf.ByteString;
-import com.google.protobuf.ByteStringAccess;
-import io.deephaven.engine.table.Table;
-import io.deephaven.engine.table.TableDefinition;
-import io.deephaven.proto.flight.util.MessageHelper;
-import io.deephaven.proto.flight.util.SchemaHelper;
-import io.deephaven.util.annotations.FinalDefault;
-import org.apache.arrow.vector.types.pojo.ArrowType;
-import org.apache.arrow.vector.types.pojo.Schema;
-import org.jetbrains.annotations.NotNull;
-
-import java.util.Collections;
-import java.util.Map;
-
-/**
- * Interface for mapping between Deephaven and Apache Arrow types.
- * <p>
- * The default implementation is {@link DefaultBarrageTypeMapping}, but can be overridden or extended as needed to
- * customize Deephaven's Apache Arrow Flight integration.
- */
-public interface BarrageTypeMapping {
-
-    /**
-     * The table definition and any table attribute metadata.
-     */
-    class BarrageTableDefinition {
-        public final TableDefinition tableDefinition;
-        public final Map<String, Object> attributes;
-        public final boolean isFlat;
-
-        public BarrageTableDefinition(
-                @NotNull final TableDefinition tableDefinition,
-                @NotNull final Map<String, Object> attributes,
-                final boolean isFlat) {
-            this.tableDefinition = tableDefinition;
-            this.attributes = Collections.unmodifiableMap(attributes);
-            this.isFlat = isFlat;
-        }
-    }
-
-    /**
-     * Map a Deephaven column type to its default Apache Arrow type.
-     *
-     * @param type The Deephaven column type
-     * @param componentType The Deephaven column component type
-     * @return The Apache Arrow type preferred for wire-format
-     */
-    ArrowType mapToArrowType(
-            @NotNull Class<?> type,
-            @NotNull Class<?> componentType);
-
-    /**
-     * Map an Apache Arrow type to its default Deephaven column type.
-     *
-     * @param arrowType The Apache Arrow wire-format type
-     * @return The Deephaven column type
-     */
-    BarrageTypeInfo mapFromArrowType(
-            @NotNull ArrowType arrowType);
-
-    /**
-     * Compute the Apache Arrow Schema from a BarrageTableDefinition.
-     *
-     * @param tableDefinition The table definition to convert
-     * @return The Apache Arrow Schema
-     */
-    Schema schemaFrom(
-            @NotNull BarrageTableDefinition tableDefinition);
-
-    /**
-     * Compute the BarrageTableDefinition from an Apache Arrow Schema using default mappings and/or column metadata to
-     * determine the desired Deephaven column types.
-     *
-     * @param schema The Apache Arrow Schema to convert
-     * @return The BarrageTableDefinition
-     */
-    BarrageTableDefinition tableDefinitionFrom(
-            @NotNull Schema schema);
-
-    /**
-     * Compute the Apache Arrow Schema from a Deephaven Table.
-     *
-     * @param table The table to convert
-     * @return The Apache Arrow Schema
-     */
-    @FinalDefault
-    default Schema schemaFrom(
-            @NotNull final Table table) {
-        return schemaFrom(new BarrageTableDefinition(table.getDefinition(), table.getAttributes(), table.isFlat()));
-    }
-
-    /**
-     * Compute the Apache Arrow wire-format Schema bytes from a BarrageTableDefinition.
-     *
-     * @param tableDefinition The table definition to convert
-     * @return The Apache Arrow wire-format Schema bytes
-     */
-    @FinalDefault
-    default ByteString schemaBytesFrom(
-            @NotNull final BarrageTableDefinition tableDefinition) {
-        // note that flight expects the Schema to be wrapped in a Message prefixed by a 4-byte identifier
-        // (to detect end-of-stream in some cases) followed by the size of the flatbuffer message
-
-        final FlatBufferBuilder builder = new FlatBufferBuilder();
-        final int schemaOffset = schemaFrom(tableDefinition).getSchema(builder);
-        builder.finish(MessageHelper.wrapInMessage(builder, schemaOffset,
-                org.apache.arrow.flatbuf.MessageHeader.Schema));
-
-        return ByteStringAccess.wrap(MessageHelper.toIpcBytes(builder));
-    }
-
-    /**
-     * Compute the Apache Arrow wire-format Schema bytes from a Deephaven Table.
-     *
-     * @param table The table to convert
-     * @return The Apache Arrow wire-format Schema bytes
-     */
-    @FinalDefault
-    default ByteString schemaBytesFrom(
-            @NotNull final Table table) {
-        return schemaBytesFrom(
-                new BarrageTableDefinition(table.getDefinition(), table.getAttributes(), table.isFlat()));
-    }
-
-    /**
-     * Compute the BarrageTableDefinition from Apache Arrow wire-format Schema bytes.
-     *
-     * @param schema The Apache Arrow wire-format Schema bytes (wrapped in a Message)
-     * @return The BarrageTableDefinition
-     */
-    @FinalDefault
-    default BarrageTableDefinition tableDefinitionFromSchemaBytes(
-            @NotNull final ByteString schema) {
-        return tableDefinitionFrom(Schema.convertSchema(SchemaHelper.flatbufSchema(schema.asReadOnlyByteBuffer())));
-    }
-}
diff --git a/extensions/barrage/src/main/java/io/deephaven/extensions/barrage/DefaultBarrageTypeMapping.java b/extensions/barrage/src/main/java/io/deephaven/extensions/barrage/DefaultBarrageTypeMapping.java
deleted file mode 100644
index 8fe7d4fb905..00000000000
--- a/extensions/barrage/src/main/java/io/deephaven/extensions/barrage/DefaultBarrageTypeMapping.java
+++ /dev/null
@@ -1,36 +0,0 @@
-//
-// Copyright (c) 2016-2024 Deephaven Data Labs and Patent Pending
-//
-package io.deephaven.extensions.barrage;
-
-import org.apache.arrow.vector.types.pojo.ArrowType;
-import org.apache.arrow.vector.types.pojo.Schema;
-import org.jetbrains.annotations.NotNull;
-
-public class DefaultBarrageTypeMapping implements BarrageTypeMapping {
-
-    @Override
-    public ArrowType mapToArrowType(
-            @NotNull final Class<?> type,
-            @NotNull final Class<?> componentType) {
-        throw new UnsupportedOperationException("Not implemented");
-    }
-
-    @Override
-    public BarrageTypeInfo mapFromArrowType(
-            @NotNull final ArrowType arrowType) {
-        throw new UnsupportedOperationException("Not implemented");
-    }
-
-    @Override
-    public Schema schemaFrom(
-            @NotNull final BarrageTableDefinition tableDefinition) {
-        throw new UnsupportedOperationException("Not implemented");
-    }
-
-    @Override
-    public BarrageTableDefinition tableDefinitionFrom(
-            @NotNull final Schema schema) {
-        throw new UnsupportedOperationException("Not implemented");
-    }
-}