diff --git a/java/memory/src/main/java/io/netty/buffer/ArrowBuf.java b/java/memory/src/main/java/io/netty/buffer/ArrowBuf.java
index 36890bbdf540d..f430755dc8ca5 100644
--- a/java/memory/src/main/java/io/netty/buffer/ArrowBuf.java
+++ b/java/memory/src/main/java/io/netty/buffer/ArrowBuf.java
@@ -29,6 +29,7 @@
 import org.apache.arrow.memory.BaseAllocator.Verbosity;
 import org.apache.arrow.memory.BoundsChecking;
 import org.apache.arrow.memory.BufferLedger;
+import org.apache.arrow.memory.BufferManager;
 import org.apache.arrow.memory.ReferenceManager;
 import org.apache.arrow.memory.util.HistoricalLog;
 import org.apache.arrow.util.Preconditions;
@@ -71,6 +72,7 @@ public final class ArrowBuf implements AutoCloseable {
   private static final int LOG_BYTES_PER_ROW = 10;
   private final long id = idGenerator.incrementAndGet();
   private final ReferenceManager referenceManager;
+  private final BufferManager bufferManager;
   private final long addr;
   private final boolean isEmpty;
   private int readerIndex;
@@ -87,10 +89,12 @@ public final class ArrowBuf implements AutoCloseable {
    */
   public ArrowBuf(
       final ReferenceManager referenceManager,
+      final BufferManager bufferManager,
       final int length,
       final long memoryAddress,
       boolean isEmpty) {
     this.referenceManager = referenceManager;
+    this.bufferManager = bufferManager;
     this.isEmpty = isEmpty;
     this.addr = memoryAddress;
     this.length = length;
@@ -1003,18 +1007,6 @@ public long getId() {
     return id;
   }
 
-  /** Returns all ledger information with stack traces as a string. */
-  public String toVerboseString() {
-    if (isEmpty) {
-      return toString();
-    }
-
-    StringBuilder sb = new StringBuilder();
-    // TODO SIDD
-    //referenceManager.print(sb, 0, Verbosity.LOG_WITH_STACKTRACE);
-    return sb.toString();
-  }
-
   /**
    * Prints information of this buffer into <code>sb</code> at the given
    * indentation and verbosity level.
@@ -1083,4 +1075,21 @@ public ArrowBuf setZero(int index, int length) {
       return this;
     }
   }
+
+  /**
+   * Returns <code>this</code> if size is less then {@link #capacity()}, otherwise
+   * delegates to {@link BufferManager#replace(ArrowBuf, int)} to get a new buffer.
+   */
+  public ArrowBuf reallocIfNeeded(final int size) {
+    Preconditions.checkArgument(size >= 0, "reallocation size must be non-negative");
+    if (this.capacity() >= size) {
+      return this;
+    }
+    if (bufferManager != null) {
+      return bufferManager.replace(this, size);
+    } else {
+      throw new UnsupportedOperationException(
+              "Realloc is only available in the context of operator's UDFs");
+    }
+  }
 }
diff --git a/java/memory/src/main/java/org/apache/arrow/memory/BaseAllocator.java b/java/memory/src/main/java/org/apache/arrow/memory/BaseAllocator.java
index bcb022017715a..9c26a2782503d 100644
--- a/java/memory/src/main/java/org/apache/arrow/memory/BaseAllocator.java
+++ b/java/memory/src/main/java/org/apache/arrow/memory/BaseAllocator.java
@@ -261,7 +261,7 @@ public ArrowBuf buffer(final int initialRequestSize) {
   }
 
   private ArrowBuf createEmpty() {
-    return new ArrowBuf(ReferenceManager.NO_OP, 0, 0, true);
+    return new ArrowBuf(ReferenceManager.NO_OP, null, 0, 0, true);
   }
 
   @Override
diff --git a/java/memory/src/main/java/org/apache/arrow/memory/BufferLedger.java b/java/memory/src/main/java/org/apache/arrow/memory/BufferLedger.java
index 4f335a8cd249f..0f0e37b38f9c3 100644
--- a/java/memory/src/main/java/org/apache/arrow/memory/BufferLedger.java
+++ b/java/memory/src/main/java/org/apache/arrow/memory/BufferLedger.java
@@ -36,8 +36,15 @@
  * fate (same reference count).
  */
 public class BufferLedger implements ValueWithKeyIncluded<BaseAllocator>, ReferenceManager  {
-
-  private final IdentityHashMap<ArrowBuf, Integer> buffers = BaseAllocator.DEBUG ? new IdentityHashMap<>() : null;
+  // since ArrowBuf interface has been cleaned to just include the length
+  // of memory chunk it has access to and starting virtual address in the chunk,
+  // ArrowBuf no longer tracks its offset within the chunk and that info
+  // is kept by the ReferenceManager/BufferLedger here. thus we need this map
+  // to track offsets of ArrowBufs managed by this ledger. the downside is
+  // that there could be potential increase in heap overhead as earlier
+  // map was created in debug mode only but now it will always be created
+  // per instance creation of BufferLedger
+  private final IdentityHashMap<ArrowBuf, Integer> buffers = new IdentityHashMap<>();
   private static final AtomicLong LEDGER_ID_GENERATOR = new AtomicLong(0);
   // unique ID assigned to each ledger
   private final long ledgerId = LEDGER_ID_GENERATOR.incrementAndGet();
@@ -236,6 +243,7 @@ public ArrowBuf deriveBuffer(final ArrowBuf sourceBuffer, int index, int length)
       // create new ArrowBuf
       derivedBuf = new ArrowBuf(
         this,
+        null,
         length, // length (in bytes) in the underlying memory chunk for this new ArrowBuf
         startAddress, // starting byte address in the underlying memory for this new ArrowBuf
         false);
@@ -270,15 +278,13 @@ public ArrowBuf deriveBuffer(final ArrowBuf sourceBuffer, int index, int length)
    *         with this BufferLedger
    */
   ArrowBuf newArrowBuf(final int length, final BufferManager manager) {
-    // TODO: SIDD I believe we can remove BufferManager. I have removed it from ArrowBuf. I don't think its needed
-    // need to evaluate the use/significance of buffer manager
     allocator.assertOpen();
 
     // the start virtual address of the ArrowBuf will be same as address of memory chunk
     final long startAddress = allocationManager.getMemoryChunk().memoryAddress();
 
     // create ArrowBuf
-    final ArrowBuf buf = new ArrowBuf(this, length, startAddress, false);
+    final ArrowBuf buf = new ArrowBuf(this, manager, length, startAddress, false);
 
     // store the offset (within the underlying memory chunk) of new buffer
     synchronized (buffers) {
@@ -502,16 +508,13 @@ public int getAccountedSize() {
    * @param verbosity The level of verbosity to print.
    */
   void print(StringBuilder sb, int indent, BaseAllocator.Verbosity verbosity) {
-    // TODO SIDD: figure out how to make the debug logging work with new changes
     indent(sb, indent)
       .append("ledger[")
       .append(ledgerId)
       .append("] allocator: ")
       .append(allocator.name)
       .append("), isOwning: ")
-      //.append(owningLedger == this)
       .append(", size: ")
-      //.append(size)
       .append(", references: ")
       .append(bufRefCnt.get())
       .append(", life: ")
@@ -519,11 +522,7 @@ void print(StringBuilder sb, int indent, BaseAllocator.Verbosity verbosity) {
       .append("..")
       .append(lDestructionTime)
       .append(", allocatorManager: [")
-      //.append(AllocationManager.this.allocatorManagerId)
       .append(", life: ");
-    //.append(amCreationTime)
-    //.append("..")
-    //.append(amDestructionTime);
 
     if (!BaseAllocator.DEBUG) {
       sb.append("]\n");
diff --git a/java/vector/src/test/java/org/apache/arrow/vector/TestBitVectorHelper.java b/java/vector/src/test/java/org/apache/arrow/vector/TestBitVectorHelper.java
index d9c8578aaca44..f62371d7525fd 100644
--- a/java/vector/src/test/java/org/apache/arrow/vector/TestBitVectorHelper.java
+++ b/java/vector/src/test/java/org/apache/arrow/vector/TestBitVectorHelper.java
@@ -30,7 +30,7 @@ public class TestBitVectorHelper {
   public void testGetNullCount() throws Exception {
     // test case 1, 1 null value for 0b110
     ArrowBuf validityBuffer = new ArrowBuf(
-        ReferenceManager.NO_OP,3,  new PooledByteBufAllocatorL().empty.memoryAddress(), true);
+        ReferenceManager.NO_OP, null,3,  new PooledByteBufAllocatorL().empty.memoryAddress(), true);
     // we set validity buffer to be 0b10110, but only have 3 items with 1st item is null
     validityBuffer.setByte(0, 0b10110);
 
@@ -40,7 +40,7 @@ public void testGetNullCount() throws Exception {
 
     // test case 2, no null value for 0xFF
     validityBuffer = new ArrowBuf(
-        ReferenceManager.NO_OP, 8, new PooledByteBufAllocatorL().empty.memoryAddress(), true);
+        ReferenceManager.NO_OP,  null,8, new PooledByteBufAllocatorL().empty.memoryAddress(), true);
     validityBuffer.setByte(0, 0xFF);
 
     count = BitVectorHelper.getNullCount(validityBuffer, 8);
@@ -48,7 +48,7 @@ public void testGetNullCount() throws Exception {
 
     // test case 3, 1 null value for 0x7F
     validityBuffer = new ArrowBuf(
-        ReferenceManager.NO_OP, 8, new PooledByteBufAllocatorL().empty.memoryAddress(), true);
+        ReferenceManager.NO_OP, null, 8, new PooledByteBufAllocatorL().empty.memoryAddress(), true);
     validityBuffer.setByte(0, 0x7F);
 
     count = BitVectorHelper.getNullCount(validityBuffer, 8);
@@ -56,7 +56,7 @@ public void testGetNullCount() throws Exception {
 
     // test case 4, validity buffer has multiple bytes, 11 items
     validityBuffer = new ArrowBuf(
-        ReferenceManager.NO_OP, 11, new PooledByteBufAllocatorL().empty.memoryAddress(), true);
+        ReferenceManager.NO_OP, null,11, new PooledByteBufAllocatorL().empty.memoryAddress(), true);
     validityBuffer.setByte(0, 0b10101010);
     validityBuffer.setByte(1, 0b01010101);