[HARMONY-5336] [classlib][luni] StackOverflow in DataInputStream.readUTF(DataInput)

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Component/s: App-Oriented Bug Reports, Classlib
• Environment: Linux
• Estimated Complexity: Novice
• Assignee: Mikhail Markov
• Reporter: Mikhail Markov
• Created: 21/Dec/07 20:45
• Updated: 24/Dec/07 19:00
• Resolved: 24/Dec/07 19:00

Description

The following test leads to stack overflow on Harmony, but works ok on RI:
import java.io.DataInput;
import java.io.DataInputStream;
import java.io.IOException;

public class Test {
public static void main(String[] args) throws Exception

{ new MyDataInputStream().readUTF(); }

static class MyDataInputStream implements DataInput {
public boolean readBoolean() throws IOException

{ return false; }

public byte readByte() throws IOException

{ return (byte) 0; }

public char readChar() throws IOException

{ return (char) 0; }

public double readDouble() throws IOException

{ return 0.0; }

public float readFloat() throws IOException

{ return (float) 0.0; }

public void readFully(byte[] buffer) throws IOException {
}

public void readFully(byte[] buffer, int offset, int count)
throws IOException {
}

public int readInt() throws IOException

{ return 0; }

public String readLine() throws IOException { return null; }

public long readLong() throws IOException { return (long) 0; }

public short readShort() throws IOException { return (short) 0; }

public int readUnsignedByte() throws IOException { return 0; }

public int readUnsignedShort() throws IOException

{ return 0; }

public String readUTF() throws IOException { return DataInputStream.readUTF(this); }

public int skipBytes(int count) throws IOException { return 0; }

}
}

readUTF(DataInput in) static method of DataInputStream just calls 'return in.readUTF();' which lead to this problem. I'll provide the patch soon.