BAEL-1033 Introduction to StreamUtils (#2337)

* Evaluation article: Different Types of Bean Injection in Spring

* added tests & changed configuration to Java-based config

* removed xml config files

* rename unit tests

* BAEL-972 - Apache Commons Text

* remove code from evaluation article

* remove code from evaluation article

* BAEL-972 - Apache Commons Text - added another example

* BAEL-972 - Apache Commons Text - just indentation

* BAEL-994 - TemporalAdjuster in Java

* BAEL-994 - TemporalAdjuster in Java

* BAEL-994 - TemporalAdjuster in Java

* BAEL-994 - TemporalAdjuster in Java

* BAEL-994 - TemporalAdjuster in Java - fix problems

* BAEL-1033 Introduction to StreamUtils

* BAEL-1033 Introduction to StreamUtils

libraries/src/main/java/com/baeldung/streamutils/CopyStream.java

@@ -0,0 +1,22 @@
+package com.baeldung.streamutils;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.StringWriter;
+
+import org.apache.commons.io.IOUtils;
+import org.springframework.util.StreamUtils;
+
+public class CopyStream {
+	public static String getStringFromInputStream(InputStream input) throws IOException {
+		StringWriter writer = new StringWriter();
+		IOUtils.copy(input, writer, "UTF-8");
+		return writer.toString();
+	}
+
+	public InputStream getNonClosingInputStream() throws IOException {
+		InputStream in = new FileInputStream("src/test/resources/input.txt");
+		return StreamUtils.nonClosing(in);
+	}
+}

libraries/src/main/java/com/baeldung/streamutils/DrainStream.java

@@ -0,0 +1,11 @@
+package com.baeldung.streamutils;
+
+import java.io.InputStream;
+
+import org.springframework.util.StreamUtils;
+
+public class DrainStream {
+	public InputStream getInputStream() {
+		return StreamUtils.emptyInput();
+	}
+}