fix possible divided by zero error (#1162)

balamurugana · web-flow · commit 30be434df2b0 · 2021-02-17T21:21:23.000-08:00
diff --git a/api/src/main/java/io/minio/PutObjectArgs.java b/api/src/main/java/io/minio/PutObjectArgs.java
@@ -93,11 +93,8 @@ private long[] partInfo(long objectSize, long partSize) {
       }
 
       if (partSize > 0) {
-        if (partSize > objectSize) {
-          partSize = objectSize;
-        }
-
-        long partCount = (long) Math.ceil((double) objectSize / partSize);
+        if (partSize > objectSize) partSize = objectSize;
+        long partCount = partSize > 0 ? (long) Math.ceil((double) objectSize / partSize) : 1;
         return new long[] {partSize, partCount == 0 ? 1 : partCount};
       }
 

Original file line number	Diff line number	Diff line change
`@@ -93,11 +93,8 @@ private long[] partInfo(long objectSize, long partSize) {`
`93`	`93`	`}`
`94`	`94`
`95`	`95`	`if (partSize > 0) {`
`96`		`- if (partSize > objectSize) {`
`97`		`- partSize = objectSize;`
`98`		`- }`
`99`		`-`
`100`		`- long partCount = (long) Math.ceil((double) objectSize / partSize);`
	`96`	`+ if (partSize > objectSize) partSize = objectSize;`
	`97`	`+ long partCount = partSize > 0 ? (long) Math.ceil((double) objectSize / partSize) : 1;`
`101`	`98`	`return new long[] {partSize, partCount == 0 ? 1 : partCount};`
`102`	`99`	`}`
`103`	`100`