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TrailerTestServlet2.java
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TrailerTestServlet2.java
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/*
* Copyright (c) 2017, 2020 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package com.sun.ts.tests.servlet.api.jakarta_servlet_http.httpservletresponse40;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.Writer;
import java.util.HashMap;
import java.util.Map;
public class TrailerTestServlet2 extends HttpServlet {
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
String s = "Get IllegalStateException when call setTrailerFields";
resp.setHeader("Content-Length", String.valueOf(s.length()));
Writer writer = resp.getWriter();
writer.flush();
try {
resp.setTrailerFields(() -> {
Map m = new HashMap();
m.put("myTrailer", "foo");
return m;
});
writer.write("Current trailer field: ");
resp.getTrailerFields().get().forEach((key, value) -> {
try {
writer.write(key + ":" + value);
} catch (IOException e) {
throw new RuntimeException(e);
}
});
} catch (IllegalStateException e) {
writer.write(s);
}
}
}