From d84ab334602ae40b134177db53e71f83be062dc5 Mon Sep 17 00:00:00 2001
From: Dan <46821332+nsadeveloper789@users.noreply.github.com>
Date: Fri, 26 Nov 2021 13:33:13 -0500
Subject: [PATCH] GP-0: More test fixes.

---
 .../ghidra/generic/util/datastruct/SemisparseByteArray.java  | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Ghidra/Debug/ProposedUtils/src/main/java/ghidra/generic/util/datastruct/SemisparseByteArray.java b/Ghidra/Debug/ProposedUtils/src/main/java/ghidra/generic/util/datastruct/SemisparseByteArray.java
index 16264075b2..c9ac44561f 100644
--- a/Ghidra/Debug/ProposedUtils/src/main/java/ghidra/generic/util/datastruct/SemisparseByteArray.java
+++ b/Ghidra/Debug/ProposedUtils/src/main/java/ghidra/generic/util/datastruct/SemisparseByteArray.java
@@ -212,10 +212,13 @@ public class SemisparseByteArray {
 	 */
 	public synchronized void putData(final long loc, final byte[] data, final int offset,
 			final int length) {
+		if (length == 0) {
+			return;
+		}
 		if (length < 0) {
 			throw new IllegalArgumentException("length: " + length);
 		}
-		if (Long.compareUnsigned(loc + length, loc) < 0) {
+		if (Long.compareUnsigned(loc + length - 1, loc) < 0) {
 			throw new IndexOutOfBoundsException("given offset and length would exceed ULONG_MAX");
 		}
 		UnsignedLong uLoc = UnsignedLong.fromLongBits(loc);