Fix JAVA 8 compliance

src/test/kotlin/TestXsltTransform.kt

@@ -52,7 +52,7 @@ class TestXsltTransform {
 
         val transformer = XMLTransformer()
         val xslt =
-            transformer.xsltFunction(FileInputStream("${resourcePath}/test_transform/test-transformer.xslt").readAllBytes())
+            transformer.xsltFunction(FileInputStream("${resourcePath}/test_transform/test-transformer.xslt").readBytes())
         val result = transformer.applyXSLT(
             "source-key", meta, createInputStream("test_transform/test-transformer.xml"), xslt
         )