Date: Sun, 08 Sep 2002 20:38:33 +0800 From: Huang wen hui <hwh@mail.gddsn.org.cn> To: java <java@freebsd.org> Subject: java core dump when using InetAddress.getHostName under current Message-ID: <3D7B44C9.3030807@mail.gddsn.org.cn>
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hi,
The following example can cause java ( both classic and hotspot) core dump:
-------------------------------------------------------------
import java.net.*;
public class TestGetHostByAddr {
public static void main(String[] args) throws Exception {
Socket socket = new Socket("www.freebsd.org", 80);
InetAddress localAddr = socket.getLocalAddress();
String host = localAddr.getHostName();
System.out.println("Local Host name is: "+ host);
socket.close();
}
}
--------------------------------------------------------------
(gdb) run TestGetHostByAddr
Starting program: /usr/local/jdk1.3.1/bin/i386/native_threads/java_g
TestGetHostByAddr
Program received signal SIGBUS, Bus error.
0x297ab90e in Java_java_net_InetAddressImpl_getHostByAddr
(env=0x806c2b0, this=0xbfbfeddc, addr=83994816) at
../../../src/solaris/native/java/net/InetAddressImpl.c:311
311 ret = (*env)->NewStringUTF(env, hp->h_name);
(gdb) print hp->h_name
Error accessing memory address 0xffffffff: Bad address.
(gdb) bt
#0 0x297ab90e in Java_java_net_InetAddressImpl_getHostByAddr
(env=0x806c2b0, this=0xbfbfeddc, addr=83994816)
at ../../../src/solaris/native/java/net/InetAddressImpl.c:311
#1 0x080ee1ac in ?? ()
#2 0x080ea56d in ?? ()
#3 0x080ea56d in ?? ()
#4 0x080ea56d in ?? ()
#5 0x2863af5d in StubRoutines::_code1 () from
/usr/local/jdk1.3.1/jre/lib/i386/client/libjvm_g.so
#6 0x283030b9 in JavaCalls::call_helper(JavaValue*, methodHandle*,
JavaCallArguments*, Thread*) (result=0xbfbff080, m=0xbfbfef54,
args=0xbfbfef80,
__the_thread__=0x806c218) at
/usr/ports/java/jdk13/work/hotspot1.3.1/src/share/vm/runtime/javaCalls.cpp:378
#7 0x28302c54 in JavaCalls::call(JavaValue*, methodHandle,
JavaCallArguments*, Thread*) (result=0xbfbff080, method=ABI doesn't
define required function baseclass_offset
)
at
/usr/ports/java/jdk13/work/hotspot1.3.1/src/share/vm/runtime/javaCalls.cpp:287
#8 0x2830f996 in jni_invoke(JNIEnv_*, JavaValue*, _jobject*,
JNICallType, _jmethodID*, JNI_ArgumentPusher*, Thread*) ()
from /usr/local/jdk1.3.1/jre/lib/i386/client/libjvm_g.so
#9 0x2832438a in jni_CallStaticVoidMethod () from
/usr/local/jdk1.3.1/jre/lib/i386/client/libjvm_g.so
#10 0x08049346 in main (argc=0, argv=0xbfbff9bc) at
../../../../src/share/bin/java.c:323
#11 0x08048bc1 in _start ()
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