Make package private class final
Allow no instances of some internal classes
diff --git a/src/main/java/org/apache/commons/csv/Constants.java b/src/main/java/org/apache/commons/csv/Constants.java
index e8f0106..86f15ab 100644
--- a/src/main/java/org/apache/commons/csv/Constants.java
+++ b/src/main/java/org/apache/commons/csv/Constants.java
@@ -1,84 +1,89 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.commons.csv;
-
-/**
- * Constants for this package.
- */
-final class Constants {
-
- static final char BACKSLASH = '\\';
-
- static final char BACKSPACE = '\b';
-
- static final String COMMA = ",";
-
- /**
- * Starts a comment, the remainder of the line is the comment.
- */
- static final char COMMENT = '#';
-
- static final char CR = '\r';
-
- /** RFC 4180 defines line breaks as CRLF */
- static final String CRLF = "\r\n";
-
- static final Character DOUBLE_QUOTE_CHAR = Character.valueOf('"');
-
- static final String EMPTY = "";
-
- /** The end of stream symbol */
- static final int END_OF_STREAM = -1;
-
- static final char FF = '\f';
-
- static final char LF = '\n';
-
- /**
- * Unicode line separator.
- */
- static final String LINE_SEPARATOR = "\u2028";
-
- /**
- * Unicode next line.
- */
- static final String NEXT_LINE = "\u0085";
-
- /**
- * Unicode paragraph separator.
- */
- static final String PARAGRAPH_SEPARATOR = "\u2029";
-
- static final char PIPE = '|';
-
- /** ASCII record separator */
- static final char RS = 30;
-
- static final char SP = ' ';
-
- static final char TAB = '\t';
-
- /** Undefined state for the lookahead char */
- static final int UNDEFINED = -2;
-
- /** ASCII unit separator */
- static final char US = 31;
-
- static final String[] EMPTY_STRING_ARRAY = {};
-
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.commons.csv;
+
+/**
+ * Constants for this package.
+ */
+final class Constants {
+
+ static final char BACKSLASH = '\\';
+
+ static final char BACKSPACE = '\b';
+
+ static final String COMMA = ",";
+
+ /**
+ * Starts a comment, the remainder of the line is the comment.
+ */
+ static final char COMMENT = '#';
+
+ static final char CR = '\r';
+
+ /** RFC 4180 defines line breaks as CRLF */
+ static final String CRLF = "\r\n";
+
+ static final Character DOUBLE_QUOTE_CHAR = Character.valueOf('"');
+
+ static final String EMPTY = "";
+
+ /** The end of stream symbol */
+ static final int END_OF_STREAM = -1;
+
+ static final char FF = '\f';
+
+ static final char LF = '\n';
+
+ /**
+ * Unicode line separator.
+ */
+ static final String LINE_SEPARATOR = "\u2028";
+
+ /**
+ * Unicode next line.
+ */
+ static final String NEXT_LINE = "\u0085";
+
+ /**
+ * Unicode paragraph separator.
+ */
+ static final String PARAGRAPH_SEPARATOR = "\u2029";
+
+ static final char PIPE = '|';
+
+ /** ASCII record separator */
+ static final char RS = 30;
+
+ static final char SP = ' ';
+
+ static final char TAB = '\t';
+
+ /** Undefined state for the lookahead char */
+ static final int UNDEFINED = -2;
+
+ /** ASCII unit separator */
+ static final char US = 31;
+
+ static final String[] EMPTY_STRING_ARRAY = {};
+
+ /** No instances. */
+ private Constants() {
+ // noop
+ }
+
+}
diff --git a/src/main/java/org/apache/commons/csv/IOUtils.java b/src/main/java/org/apache/commons/csv/IOUtils.java
index 882bc8b..669a04d 100644
--- a/src/main/java/org/apache/commons/csv/IOUtils.java
+++ b/src/main/java/org/apache/commons/csv/IOUtils.java
@@ -1,140 +1,145 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.commons.csv;
-
-import java.io.IOException;
-import java.io.Reader;
-import java.io.Writer;
-import java.nio.Buffer;
-import java.nio.CharBuffer;
-
-/** Copied from Apache Commons IO. */
-class IOUtils {
-
- /**
- * <p>
- * Copied from Apache Commons IO.
- * </p>
- * The default buffer size ({@value}).
- */
- static final int DEFAULT_BUFFER_SIZE = 1024 * 4;
-
- /**
- * <p>
- * Copied from Apache Commons IO.
- * </p>
- * Represents the end-of-file (or stream).
- * @since 2.5 (made public)
- */
- private static final int EOF = -1;
-
- /**
- * Copies chars from a large (over 2GB) {@code Reader} to an {@code Appendable}.
- * <p>
- * This method buffers the input internally, so there is no need to use a
- * {@code BufferedReader}.
- * </p>
- * The buffer size is given by {@link #DEFAULT_BUFFER_SIZE}.
- *
- * @param input the {@code Reader} to read from
- * @param output the {@code Appendable} to append to
- * @return the number of characters copied
- * @throws NullPointerException if the input or output is null
- * @throws IOException if an I/O error occurs
- * @since 2.7
- */
- static long copy(final Reader input, final Appendable output) throws IOException {
- return copy(input, output, CharBuffer.allocate(DEFAULT_BUFFER_SIZE));
- }
-
- /**
- * Copies chars from a large (over 2GB) {@code Reader} to an {@code Appendable}.
- * <p>
- * This method uses the provided buffer, so there is no need to use a
- * {@code BufferedReader}.
- * </p>
- *
- * @param input the {@code Reader} to read from
- * @param output the {@code Appendable} to write to
- * @param buffer the buffer to be used for the copy
- * @return the number of characters copied
- * @throws NullPointerException if the input or output is null
- * @throws IOException if an I/O error occurs
- * @since 2.7
- */
- static long copy(final Reader input, final Appendable output, final CharBuffer buffer) throws IOException {
- long count = 0;
- int n;
- while (EOF != (n = input.read(buffer))) {
- ((Buffer) buffer).flip();
- output.append(buffer, 0, n);
- count += n;
- }
- return count;
- }
-
- /**
- * <p>
- * Copied from Apache Commons IO.
- * </p>
- * Copies chars from a large (over 2GB) {@code Reader} to a {@code Writer}.
- * <p>
- * This method buffers the input internally, so there is no need to use a
- * {@code BufferedReader}.
- * <p>
- * The buffer size is given by {@link #DEFAULT_BUFFER_SIZE}.
- *
- * @param input the {@code Reader} to read from
- * @param output the {@code Writer} to write to
- * @return the number of characters copied
- * @throws NullPointerException if the input or output is null
- * @throws IOException if an I/O error occurs
- * @since 1.3
- */
- static long copyLarge(final Reader input, final Writer output) throws IOException {
- return copyLarge(input, output, new char[DEFAULT_BUFFER_SIZE]);
- }
-
- /**
- * <p>
- * Copied from Apache Commons IO.
- * </p>
- * Copies chars from a large (over 2GB) {@code Reader} to a {@code Writer}.
- * <p>
- * This method uses the provided buffer, so there is no need to use a
- * {@code BufferedReader}.
- * <p>
- *
- * @param input the {@code Reader} to read from
- * @param output the {@code Writer} to write to
- * @param buffer the buffer to be used for the copy
- * @return the number of characters copied
- * @throws NullPointerException if the input or output is null
- * @throws IOException if an I/O error occurs
- * @since 2.2
- */
- static long copyLarge(final Reader input, final Writer output, final char[] buffer) throws IOException {
- long count = 0;
- int n;
- while (EOF != (n = input.read(buffer))) {
- output.write(buffer, 0, n);
- count += n;
- }
- return count;
- }
-
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.csv;
+
+import java.io.IOException;
+import java.io.Reader;
+import java.io.Writer;
+import java.nio.Buffer;
+import java.nio.CharBuffer;
+
+/** Copied from Apache Commons IO. */
+final class IOUtils {
+
+ /**
+ * <p>
+ * Copied from Apache Commons IO.
+ * </p>
+ * The default buffer size ({@value}).
+ */
+ static final int DEFAULT_BUFFER_SIZE = 1024 * 4;
+
+ /**
+ * <p>
+ * Copied from Apache Commons IO.
+ * </p>
+ * Represents the end-of-file (or stream).
+ * @since 2.5 (made public)
+ */
+ private static final int EOF = -1;
+
+ /**
+ * Copies chars from a large (over 2GB) {@code Reader} to an {@code Appendable}.
+ * <p>
+ * This method buffers the input internally, so there is no need to use a
+ * {@code BufferedReader}.
+ * </p>
+ * The buffer size is given by {@link #DEFAULT_BUFFER_SIZE}.
+ *
+ * @param input the {@code Reader} to read from
+ * @param output the {@code Appendable} to append to
+ * @return the number of characters copied
+ * @throws NullPointerException if the input or output is null
+ * @throws IOException if an I/O error occurs
+ * @since 2.7
+ */
+ static long copy(final Reader input, final Appendable output) throws IOException {
+ return copy(input, output, CharBuffer.allocate(DEFAULT_BUFFER_SIZE));
+ }
+
+ /**
+ * Copies chars from a large (over 2GB) {@code Reader} to an {@code Appendable}.
+ * <p>
+ * This method uses the provided buffer, so there is no need to use a
+ * {@code BufferedReader}.
+ * </p>
+ *
+ * @param input the {@code Reader} to read from
+ * @param output the {@code Appendable} to write to
+ * @param buffer the buffer to be used for the copy
+ * @return the number of characters copied
+ * @throws NullPointerException if the input or output is null
+ * @throws IOException if an I/O error occurs
+ * @since 2.7
+ */
+ static long copy(final Reader input, final Appendable output, final CharBuffer buffer) throws IOException {
+ long count = 0;
+ int n;
+ while (EOF != (n = input.read(buffer))) {
+ ((Buffer) buffer).flip();
+ output.append(buffer, 0, n);
+ count += n;
+ }
+ return count;
+ }
+
+ /**
+ * <p>
+ * Copied from Apache Commons IO.
+ * </p>
+ * Copies chars from a large (over 2GB) {@code Reader} to a {@code Writer}.
+ * <p>
+ * This method buffers the input internally, so there is no need to use a
+ * {@code BufferedReader}.
+ * <p>
+ * The buffer size is given by {@link #DEFAULT_BUFFER_SIZE}.
+ *
+ * @param input the {@code Reader} to read from
+ * @param output the {@code Writer} to write to
+ * @return the number of characters copied
+ * @throws NullPointerException if the input or output is null
+ * @throws IOException if an I/O error occurs
+ * @since 1.3
+ */
+ static long copyLarge(final Reader input, final Writer output) throws IOException {
+ return copyLarge(input, output, new char[DEFAULT_BUFFER_SIZE]);
+ }
+
+ /**
+ * <p>
+ * Copied from Apache Commons IO.
+ * </p>
+ * Copies chars from a large (over 2GB) {@code Reader} to a {@code Writer}.
+ * <p>
+ * This method uses the provided buffer, so there is no need to use a
+ * {@code BufferedReader}.
+ * <p>
+ *
+ * @param input the {@code Reader} to read from
+ * @param output the {@code Writer} to write to
+ * @param buffer the buffer to be used for the copy
+ * @return the number of characters copied
+ * @throws NullPointerException if the input or output is null
+ * @throws IOException if an I/O error occurs
+ * @since 2.2
+ */
+ static long copyLarge(final Reader input, final Writer output, final char[] buffer) throws IOException {
+ long count = 0;
+ int n;
+ while (EOF != (n = input.read(buffer))) {
+ output.write(buffer, 0, n);
+ count += n;
+ }
+ return count;
+ }
+
+ /** No instances. */
+ private IOUtils() {
+ // Noop
+ }
+
+}
