Reading windows logs using jna - jna

Question

I am getting an exception while reading windows logs using jna
Following is the program, I am using to read the logs. I took this program from another post.
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.util.Arrays;
import com.sun.jna.*;
import com.sun.jna.platform.win32.*;
import com.sun.jna.platform.win32.WinNT.*;
import com.sun.jna.ptr.IntByReference;
public class Test {
public static void main(String[] args) throws NumberFormatException, IOException {
HANDLE h = com.sun.jna.platform.win32.Advapi32.INSTANCE.OpenEventLog(null, "Application");
IntByReference pnBytesRead = new IntByReference();
IntByReference pnMinNumberOfBytesNeeded = new IntByReference();
IntByReference pOldestRecord = new IntByReference();
assertTrue(com.sun.jna.platform.win32.Advapi32.INSTANCE.GetOldestEventLogRecord(h, pOldestRecord));
int dwRecord = pOldestRecord.getValue();
System.out.println("OLD: " + dwRecord);
IntByReference pRecordCount = new IntByReference();
assertTrue(com.sun.jna.platform.win32.Advapi32.INSTANCE.GetNumberOfEventLogRecords(h, pRecordCount));
int dwRecordCnt = pRecordCount.getValue();
System.out.println("CNT: " + dwRecordCnt);
int bufSize = 0x7ffff; //(r.size()) * 2048;
Memory buffer = new Memory(bufSize);
int rc = 0;
int cnt = 0;
while(com.sun.jna.platform.win32.Advapi32.INSTANCE.ReadEventLog(h,
WinNT.EVENTLOG_SEEK_READ /*
| WinNT.EVENTLOG_SEQUENTIAL_READ */
| WinNT.EVENTLOG_FORWARDS_READ /*
| WinNT.EVENTLOG_BACKWARDS_READ*/
,
dwRecord, buffer,
bufSize,
pnBytesRead,
pnMinNumberOfBytesNeeded)) {
rc = Kernel32.INSTANCE.GetLastError();
if (rc == W32Errors.ERROR_INSUFFICIENT_BUFFER) {
break;
}
int dwRead = pnBytesRead.getValue();
Pointer pevlr = buffer;
while (dwRead > 0)
{
cnt++;
EVENTLOGRECORD record = new EVENTLOGRECORD(pevlr);
System.out.println("------------------------------------------------------------");
System.out.println(cnt+". " + dwRecord + " Event ID: " + record.EventID.shortValue() + " SID: " + record.UserSidLength);
dwRecord++;
// WCHAR SourceName[]
// WCHAR Computername[]
{
ByteBuffer names = pevlr.getByteBuffer(record.size(),
(record.UserSidLength.intValue() != 0 ? record.UserSidOffset.intValue() : record.StringOffset.intValue()) - record.size());
names.position(0);
CharBuffer namesBuf = names.asCharBuffer();
String[] splits = namesBuf.toString().split("\0");
System.out.println("SOURCE NAME: \n" + splits[0]);
System.out.println("COMPUTER NAME: \n" + splits[1]);
}
// SID UserSid
if (record.UserSidLength.intValue() != 0){
ByteBuffer sid = pevlr.getByteBuffer(record.UserSidOffset.intValue(), record.UserSidLength.intValue());
sid.position(0);
//CharBuffer sidBuf = sid.asCharBuffer();
byte[] dst = new byte[record.UserSidLength.intValue()];
sid.get(dst);
System.out.println("SID: \n" + Arrays.toString(dst));
}
else {
System.out.println("SID: \nN/A");
}
// WCHAR Strings[]
{
ByteBuffer strings = pevlr.getByteBuffer(record.StringOffset.intValue(), record.DataOffset.intValue() - record.StringOffset.intValue());
strings.position(0);
CharBuffer stringsBuf = strings.asCharBuffer();
System.out.println("STRINGS["+record.NumStrings.intValue()+"]: \n" + stringsBuf.toString());
}
// BYTE Data[]
{
ByteBuffer data = pevlr.getByteBuffer(record.DataOffset.intValue(), record.DataLength.intValue());
data.position(0);
CharBuffer dataBuf = data.asCharBuffer();
System.out.println("DATA: \n" + dataBuf.toString());
}
// CHAR Pad[]
// DWORD Length;
dwRead -= record.Length.intValue();
pevlr = pevlr.share(record.Length.intValue());
}
}
assertTrue(rc == W32Errors.ERROR_HANDLE_EOF);
assertTrue(com.sun.jna.platform.win32.Advapi32.INSTANCE.CloseEventLog(h));
}
private static void assertTrue(boolean getOldestEventLogRecord) {
}
}
The Exception is as follows :-
Exception in thread "main" java.lang.NoSuchMethodError: com.sun.jna.IntegerType.
<init>(IJZ)V
at com.sun.jna.platform.win32.WinDef$DWORD.<init>(WinDef.java:57)
at com.sun.jna.platform.win32.WinDef$DWORD.<init>(WinDef.java:53)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at com.sun.jna.NativeMappedConverter.defaultValue(NativeMappedConverter.java:47)
at com.sun.jna.NativeMappedConverter.<init>(NativeMappedConverter.java:41)
at com.sun.jna.NativeMappedConverter.getInstance(NativeMappedConverter.java:29)
at com.sun.jna.Structure.calculateSize(Structure.java:803)
at com.sun.jna.Structure.useMemory(Structure.java:254)
at com.sun.jna.Structure.useMemory(Structure.java:238)
at com.sun.jna.Structure.<init>(Structure.java:174)
at com.sun.jna.Structure.<init>(Structure.java:167)
at com.sun.jna.Structure.<init>(Structure.java:163)
at com.sun.jna.platform.win32.WinNT$EVENTLOGRECORD.<init>(WinNT.java:1789)
at Test.main(Test.java:54)
Please help me out from the trouble. Thanks a lot in advance. I am new to this great site so, please excuse me for bad explanation

Answer 1

You cannot use different versions of platform.jar and jna.jar. That is what is causing your error. Both are distributed together, so I don't understand why you're using one version of one with a different version of the other.