pt 1 in reviving the android build (copied from pm 28a1, wish me luck)

mobile/android/thirdparty/ch/boye/httpclientandroidlib/message/BasicHeader.java

@@ -0,0 +1,91 @@
+/*
+ * ====================================================================
+ * 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.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ *
+ */
+
+package ch.boye.httpclientandroidlib.message;
+
+import java.io.Serializable;
+
+import ch.boye.httpclientandroidlib.Header;
+import ch.boye.httpclientandroidlib.HeaderElement;
+import ch.boye.httpclientandroidlib.ParseException;
+import ch.boye.httpclientandroidlib.annotation.Immutable;
+import ch.boye.httpclientandroidlib.util.Args;
+
+/**
+ * Basic implementation of {@link Header}.
+ *
+ * @since 4.0
+ */
+@Immutable
+public class BasicHeader implements Header, Cloneable, Serializable {
+
+    private static final long serialVersionUID = -5427236326487562174L;
+
+    private final String name;
+    private final String value;
+
+    /**
+     * Constructor with name and value
+     *
+     * @param name the header name
+     * @param value the header value
+     */
+    public BasicHeader(final String name, final String value) {
+        super();
+        this.name = Args.notNull(name, "Name");
+        this.value = value;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public String getValue() {
+        return this.value;
+    }
+
+    @Override
+    public String toString() {
+        // no need for non-default formatting in toString()
+        return BasicLineFormatter.INSTANCE.formatHeader(null, this).toString();
+    }
+
+    public HeaderElement[] getElements() throws ParseException {
+        if (this.value != null) {
+            // result intentionally not cached, it's probably not used again
+            return BasicHeaderValueParser.parseElements(this.value, null);
+        } else {
+            return new HeaderElement[] {};
+        }
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+
+}