Merge pull request #79 from unbroken-dome/fix/34-bytebuffer-clear

Avoid possible JDK incompatibility about ByteBuffer.clear
unbroken-dome · Sep 24, 2020 · 7e057a5 · 7e057a5
2 parents 5d68da6 + 45c62fe
commit 7e057a5
Showing 1 changed file with 11 additions and 1 deletion.
diff --git a/src/main/kotlin/org/unbrokendome/gradle/plugins/helm/util/DigestUtils.kt b/src/main/kotlin/org/unbrokendome/gradle/plugins/helm/util/DigestUtils.kt
@@ -29,7 +29,7 @@ internal fun calculateDigest(
 
     while (true) {
 
-        buffer.clear()
+        buffer.safeClear()
 
         val bytesRead = channel.read(buffer)
         if (bytesRead == -1) {
@@ -44,6 +44,16 @@ internal fun calculateDigest(
 }
 
 
+/**
+ * Avoid using ByteBuffer.clear because of a JDK incompatibility that might lead to a NoSuchMethodError
+ * when compiling with JDK > 8 and running with JDK 8.
+ */
+private fun ByteBuffer.safeClear() {
+    position(0)
+    limit(capacity())
+}
+
+
 /**
  * Calculates a digest over the contents of a file.
  *