39 import java.io.ObjectOutput;
40 import java.io.ObjectOutputStream;
41 import java.util.ArrayList;
42
43 public class NPEProvoker implements java.io.Externalizable {
44 private String test = "test";
45
46 public void readExternal(ObjectInput in) throws IOException,
47 ClassNotFoundException
48 {
49 throw new IOException(); //io exception for whatever reason
50 }
51
52 public void writeExternal(ObjectOutput out) throws IOException {
53 out.writeObject(test);
54 }
55
56 public static void main(String[] args) {
57 System.err.println("\n Regression test for bug 6541870\n");
58 try {
59 ArrayList<NPEProvoker> list = new ArrayList<NPEProvoker>();
60 list.add(new NPEProvoker());
61 ByteArrayOutputStream baos = new ByteArrayOutputStream();
62 ObjectOutputStream oos = new ObjectOutputStream(baos);
63 oos.writeObject(list);
64
65 ObjectInputStream ois =
66 new ObjectInputStream(new ByteArrayInputStream(
67 baos.toByteArray()));
68 ois.readObject();
69 throw new Error();
70 } catch (IOException e) {
71 System.err.println("\nTEST PASSED");
72 } catch (ClassNotFoundException e) {
73 throw new Error();
74 } catch (NullPointerException e) {
75 throw new Error();
76 }
77 }
78 }
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39 import java.io.ObjectOutput;
40 import java.io.ObjectOutputStream;
41 import java.util.ArrayList;
42
43 public class NPEProvoker implements java.io.Externalizable {
44 private String test = "test";
45
46 public void readExternal(ObjectInput in) throws IOException,
47 ClassNotFoundException
48 {
49 throw new IOException(); //io exception for whatever reason
50 }
51
52 public void writeExternal(ObjectOutput out) throws IOException {
53 out.writeObject(test);
54 }
55
56 public static void main(String[] args) {
57 System.err.println("\n Regression test for bug 6541870\n");
58 try {
59 ArrayList<NPEProvoker> list = new ArrayList<>();
60 list.add(new NPEProvoker());
61 ByteArrayOutputStream baos = new ByteArrayOutputStream();
62 ObjectOutputStream oos = new ObjectOutputStream(baos);
63 oos.writeObject(list);
64
65 ObjectInputStream ois =
66 new ObjectInputStream(new ByteArrayInputStream(
67 baos.toByteArray()));
68 ois.readObject();
69 throw new Error();
70 } catch (IOException e) {
71 System.err.println("\nTEST PASSED");
72 } catch (ClassNotFoundException e) {
73 throw new Error();
74 } catch (NullPointerException e) {
75 throw new Error();
76 }
77 }
78 }
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