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25 package org.slf4j.issue;
26
27
28 import java.io.ByteArrayInputStream;
29 import java.io.ByteArrayOutputStream;
30 import java.io.IOException;
31 import java.io.InputStream;
32 import java.io.ObjectInputStream;
33 import java.io.ObjectOutputStream;
34 import java.io.Serializable;
35
36 import junit.framework.Assert;
37
38 import junit.framework.TestCase;
39 import org.slf4j.Logger;
40 import org.slf4j.LoggerFactory;
41
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44
45
46 public class LoggerSerializationTest extends TestCase {
47
48 static class LoggerHolder implements Serializable {
49 private static final long serialVersionUID = 1L;
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51 private Logger log = LoggerFactory.getLogger(LoggerHolder.class);
52
53 public String toString() {
54 return "log=" + getLog();
55 }
56
57 public Logger getLog() {
58 return log;
59 }
60 }
61
62 public void testCanLoggerBeSerialized() throws IOException,
63 ClassNotFoundException {
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65 LoggerHolder lh1 = new LoggerHolder();
66
67 ByteArrayOutputStream baos = new ByteArrayOutputStream();
68 ObjectOutputStream out = new ObjectOutputStream(baos);
69 out.writeObject(lh1);
70 out.close();
71
72 lh1 = null;
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74 byte[] serializedLoggerHolder = baos.toByteArray();
75
76 InputStream is = new ByteArrayInputStream(serializedLoggerHolder);
77 ObjectInputStream in = new ObjectInputStream(is);
78 LoggerHolder lh2 = (LoggerHolder) in.readObject();
79
80 Assert.assertNotNull(lh2);
81 Assert.assertNotNull(lh2.getLog());
82 lh2.getLog().info("You must see this message as a log message");
83 }
84
85 }