1 files changed, 107 insertions, 0 deletions
diff --git a/javaparser-symbol-solver-testing/src/test/test_sourcecode/javaparser_new_src/javaparser-core/com/github/javaparser/utils/Utils.java b/javaparser-symbol-solver-testing/src/test/test_sourcecode/javaparser_new_src/javaparser-core/com/github/javaparser/utils/Utils.java
new file mode 100644
index 000000000..b9320852d
--- /dev/null
+++ b/javaparser-symbol-solver-testing/src/test/test_sourcecode/javaparser_new_src/javaparser-core/com/github/javaparser/utils/Utils.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2007-2010 Júlio Vilmar Gesser.
+ * Copyright (C) 2011, 2013-2016 The JavaParser Team.
+ *
+ * This file is part of JavaParser.
+ *
+ * JavaParser can be used either under the terms of
+ * a) the GNU Lesser General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ * b) the terms of the Apache License
+ *
+ * You should have received a copy of both licenses in LICENCE.LGPL and
+ * LICENCE.APACHE. Please refer to those files for details.
+ *
+ * JavaParser is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ */
+
+package com.github.javaparser.utils;
+
+import com.github.javaparser.Provider;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.Reader;
+import java.util.*;
+
+/**
+ * Any kind of utility.
+ *
+ * @author Federico Tomassetti
+ */
+public class Utils {
+	public static final String EOL = System.getProperty("line.separator");
+	public static <T> List<T> ensureNotNull(List<T> list) {
+		return list == null ? new ArrayList<T>() : list;
+	}
+
+	public static <E> boolean isNullOrEmpty(Collection<E> collection) {
+		return collection == null || collection.isEmpty();
+	}
+
+	public static <T> T assertNotNull(T o) {
+		if (o == null) {
+			throw new NullPointerException("Assertion failed.");
+		}
+		return o;
+	}
+
+	/**
+	 * @return string with ASCII characters 10 and 13 replaced by the text "\n" and "\r".
+	 */
+	public static String escapeEndOfLines(String string) {
+		StringBuilder escapedString = new StringBuilder();
+		for (char c : string.toCharArray()) {
+			switch (c) {
+				case '\n':
+					escapedString.append("\\n");
+					break;
+				case '\r':
+					escapedString.append("\\r");
+					break;
+				default:
+					escapedString.append(c);
+			}
+		}
+		return escapedString.toString();
+	}
+
+	public static String readerToString(Reader reader) throws IOException {
+		final StringBuilder result = new StringBuilder();
+		final char[] buffer = new char[8 * 1024];
+		int numChars;
+
+		while ((numChars = reader.read(buffer, 0, buffer.length)) > 0) {
+			result.append(buffer, 0, numChars);
+		}
+
+		return result.toString();
+	}
+
+	public static String providerToString(Provider provider) throws IOException {
+		final StringBuilder result = new StringBuilder();
+		final char[] buffer = new char[8 * 1024];
+		int numChars;
+
+		while ((numChars = provider.read(buffer, 0, buffer.length)) != -1) {
+			result.append(buffer, 0, numChars);
+		}
+
+		return result.toString();
+	}
+
+	/**
+	 * Puts varargs in a mutable list.
+     * This does not have the disadvantage of Arrays#asList that it has a static size. 
+	 */
+	public static <T> List<T> arrayToList(T[] array){
+		List<T> list = new LinkedList<>();
+		Collections.addAll(list, array);
+		return list;
+	}
+
+}