Java.lang.ClassFormatException : Bad Magic number Excpetion

Hi all
I am trying to hit an applet through an iplanet web connector.
The scenario is machine 1 is the web server (iplanet 4.1) . machine 2 is app
server (iplanet 6.0 sp2)
The web connector is configured for handling all the requests to machine2
that refer to the app server.
when i place my jar (containing the applet classes) on the app server and
then try to open it through a jsp on the app server itself , it
throws a
java.lang.ClassFormatError: com/niit/cliks/te/web/TestingEngine (Bad magic
number)
exception.
But if i try with the same jar file on the web server (the same as running
the app server( - i.e. machine 2 ) the jar works just fine.
can anybody put some light on the issue. I am in a very tight deadline
situation.
thanks and regards
raghav..
PS - the applet is not signed and i don't wish (and plan) to sign it.

Dear friend
But the same class file and jars are working (without any change in the jar) when i put them on the web server which is also on the same machine running the app server.
I may suspect my compiled files but i don't.
i have compiled them at least ten times from the moment i started getting the error.
any other guesses....
thanks for your consideration
regards..
raghav..

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java.lang.UnsupportedClassVersionError: Bad version number in .class file
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Exception: java.lang.UnsupportedClassVersionError: Bad version number in .class file

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Try re-compiling the Servlet. Make sure that the JDK version used to recompile is <= the version used to run the server (if you are using a higher jdk to compile the servlet, maybe Java 5.x, then you are to run, maybe Java 1.4.x, then use the -target option of javac to target the lower release...)

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Without reading the full post (sorry for that) my guess is that the applet needed to be fetched through a
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[b] bad magic number [/b]

hallo,
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T6340 cannot boot disk - Bad magic number in disk label

Hi,
I have a shiny new T6340 that I am just setting up.
When I get through the CMM to the SP and onto the EEPROM,
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Sun Blade T6340 Server Module, No Keyboard
Copyright 2009 Sun Microsystems, Inc. All rights reserved.
OpenBoot 4.30.4, 130848 MB memory available, Serial #76313344.
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@rachel,
In your original post you showed a screen capture of what you tried.
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When that didn't seem to work, you displayed the disks recognized by the system at OpenBoot.
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Last edited by I'mGeorge (2011-07-21 20:53:31)

Bad magic number

I have an applet that i am trying to load in a JSP
<applet name="MyTestApplet" code="mypackage.MyTestApplet.class" >
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First the <applet tag is depreciated, you should use <object instead (w3c has depreciated applet for quite
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The reason I ask this is because I got the bad magic number when a jar was loaded through a proxy.
The proxy did something with the jar file making it corrupt. I think your problem has something to do with
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Java.lang.IllegalStateException: Exceeded maximum number of waiting threads

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ALERT: java/lang/ClassFormatError: Bad stack map.

Hello friends.
I need help. SOS.
Where is wrong in this code?
Problem is in comparision.
Comenting this lines, all are ok.
        if(time1==time2)
            System.out.println("Equal");
        else
            System.out.println("Different");C�digo del Midlet:
package borrame.pruebas;
import java.util.Date;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
public class Prueba extends MIDlet implements CommandListener {
    Display display;
    Form mainForm;
    // Comandos para salir y volver a la pantalla principal.
    Command cmdSalir;
    public Prueba() {
        super();
        mainForm = new Form ("HelloMidp");
        cmdSalir = new Command("Salir", Command.EXIT,1);
        mainForm.addCommand(cmdSalir);
        mainForm.setCommandListener(this);
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        display.setCurrent (mainForm);
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        long time2 = new Date().getTime() +100;
        System.out.println("time1: " + time1);
        System.out.println("time2: " + time2);
        System.out.println("time1 + time2 =" + (time1 + time2));
        if(time1==time2)
            System.out.println("Equal");
        else
            System.out.println("Different");
    protected void pauseApp() {
        // TODO Auto-generated method stub
    protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
        // TODO Auto-generated method stub
    public void commandAction(Command c, Displayable d) {
        if (c == cmdSalir) { // Selecciono salir de la aplicacion
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                destroyApp(false);
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                e.printStackTrace();
            notifyDestroyed();
}Output console:
Warning: Cannot convert string "-b&h-lucida-medium-r-normal-sans-*-140-*-*-p-*-iso8859-1" to type FontStruct
Running with storage root DefaultColorPhone
ALERT: java/lang/ClassFormatError: Bad stack map.
Method............: b7d29990 'com/sun/midp/midlet/MIDletState.createMIDlet (static)'
Stack Chunk.......: b783d300
Frame Pointer.....: b783d3a4
Current IP........: b7da5669 = b7da565b + offset 14
Previous Frame....: b783d36c
Previous IP.......: b7d87f44 (offset 52)
Frame size........: 7 (1 arguments, 6 local variables)
Argument[0].......: b783cad0
Local[1]..........: b78b35c8
Local[2]..........: b7d87f41
Local[3]..........: b783cc38
Local[4]..........: b7d29788
Local[5]..........: b78b355c
Local[6]..........: 0
Operand[1]........: b783cad0
Method............: b7d16390 'com/sun/midp/midlet/Scheduler.schedule (virtual)'
Stack Chunk.......: b783d300
Frame Pointer.....: b783d36c
Current IP........: b7d87f44 = b7d87f10 + offset 52
Previous Frame....: b783d338
Previous IP.......: b7d92b05 (offset 28)
Frame size........: 7 (2 arguments, 5 local variables)
Argument[0].......: b783cd14
Argument[1].......: b783c460
Local[2]..........: b78b20c4
Local[3]..........: b78b3594
Local[4]..........: b7d92b01
Local[5]..........: b78b35a8
Local[6]..........: b7d162b0
Operand[1]........: b783cd14
Method............: b7d1e084 'com/sun/midp/main/Main.runLocalClass (static)'
Stack Chunk.......: b783d300
Frame Pointer.....: b783d338
Current IP........: b7d92b05 = b7d92ae9 + offset 28
Previous Frame....: b783d314
Previous IP.......: b7d9257c (offset 116)
Frame size........: 3 (1 arguments, 2 local variables)
Argument[0].......: b783d1bc
Local[1]..........: b783c460
Local[2]..........: b78b3570
Method............: b7d1dfe4 'com/sun/midp/main/Main.main (static)'
Stack Chunk.......: b783d300
Frame Pointer.....: b783d314
Current IP........: b7d9257c = b7d92508 + offset 116
Previous Frame....: 0
Previous IP.......: 1
Frame size........: 3 (1 arguments, 2 local variables)
Argument[0].......: b783d5ec
Local[1]..........: b783d1bc
Local[2]..........: b783cb24
VM status:
Instruction pointer.: b7da5669 (offset within invoking method: 14)
Next instruction....: 0x4c
Frame pointer.......: b783d3a4
Local pointer.......: b783d388
Stack size..........: 128; sp: b783d3bc; ranges: b783d308-b783d508;
Contents of the current stack frame:
    b783d388: b783cad0 (lp)
    b783d38c: b78b35c8
    b783d390: b7d87f41
    b783d394: b783cc38
    b783d398: b7d29788
    b783d39c: b78b355c
    b783d3a0: 0
    b783d3a4: b783d36c (fp)
    b783d3a8: b7d87f44
    b783d3ac: b783d384
    b783d3b0: b7d29990
    b783d3b4: b783d300
    b783d3b8: 0 (end of frame)
    b783d3bc: b783cad0 (sp)
Execution stack contains 184 items:
b783d5ec
b783d1bc
b783cb24
0
1
b78b3560
b7d1dfe4
b783d300
0
b783d1bc
b783c460
b78b3570
b783d314
b7d9257c
b783d328
b7d1e084
b783d300
0
b783cd14
b783c460
b78b20c4
b78b3594
b7d92b01
b78b35a8
b7d162b0
b783d338
b7d92b05
b783d34c
b7d16390
b783d300
0
b783cd14
b783cad0
b78b35c8
b7d87f41
b783cc38
b7d29788
b78b355c
0
b783d36c
b7d87f44
b783d384
b7d29990
b783d300
0
b783cad0
Execution completed.
717374 bytecodes executed
5 thread switches
742 classes in the system (including system classes)
3720 dynamic objects allocated (102340 bytes)
2 garbage collections (88196 bytes collected)
Execution completed.
717374 bytecodes executed
5 thread switches
742 classes in the system (including system classes)
3720 dynamic objects allocated (102340 bytes)
2 garbage collections (88196 bytes collected)

My enviroment:
Linux Gentoo.
Sun JDK 1.4.2.10
eclipse 3.2 WTP 1.5
eclipseme 1.5.5
Midlet config:
MIDlet-Version: 1.0
MicroEdition-Configuration: CLDC-1.0
MicroEdition-Profile: MIDP-1.0
WTK 2.2
In last test, i'm using ktoolbar directly to build and execute midlet and all go ok.
So, My code is not problem.
I suppose that eclipseme corrupt my classes in build process.
SOLUTION:
My radical solution. I use eclipse without eclipseme, and i use ktoolbar to build, run, package, etc...
Thank's

Sun Ultra 25 - Bad magic number in disk label

I have a Sun Ultra 25 SPARC that is booting fine to it's 80GB SATA drive. Solaris 10, OpenBoot 4.22.19.
Here's what I did:
I installed a 2TB Western Digital SATA drive into the HDD1 slot.
I formatted the disk in the HDD1 slot via the format command, labeled the disk, and divided it into partitions.
I then used newfs to build the ufs on all partitions.
I mirrored the disk in HDD0 to the disk in HDD1 using ufsdump for all partitions. The data is accessible and looks ok.
After this was done I did an installboot to /dev/rdsk/c1t1d0s0 (the / partition of the HDD1 slot).
I then did a fsck on every partition to verify that they are okay.
I then took the hard drive in HDD1 and put it in the HDD0 slot, now wanting to boot off that disk.
At the reboot:
Bad magic number in disk label
Can't open disk label package
If I do a probe-scsi:
MPT Version 1.05, Firmware Version 1.08.03.00
Target 0
Unit 0 Disk ATA WDC WD20EADS-00R0A01 3907029168 Bocks, 2000 GB SATA device PhyNum 0
As far as I can tell disk0 is the correct devalias which is:
/pci@1e,600000/pci@0/pci@9/pci@0/scsi@1/disk@0,0
I just don't understand how the fsck is okay, but the boot give bad magic number in disk label?
The 80GB drive in HDD slot 0 works fine with the boot disk0 command, all I'm doing is swapping a larger disk with the same data for the smaller disk.

if it is like any other Sun product, it needs to go through the format command and get a volname.... it is just a label, but it needs to be done.
haroldkarl

OCFS2 bad magic number

Hello.
Do anybody know about what doing with this error:
mount /dev/sde /raid/4
mount.ocfs2: Bad magic number in inode while trying to determine heartbeat information
fsck.ocfs2 /dev/sde
fsck.ocfs2 1.6.4
fsck.ocfs2: Bad magic number in inode while initializing the DLM
sudo debugfs.ocfs2 /dev/sde
debugfs.ocfs2 1.6.4
debugfs: ls //
ls: Bad magic number in inode while checking directory at block 66
debugfs: stats
Revision: 0.90
Mount Count: 0   Max Mount Count: 20
State: 0   Errors: 0
Check Interval: 0   Last Check: Sat Oct 18 06:30:52 2014
Creator OS: 0
Feature Compat: 3 backup-super strict-journal-super
Feature Incompat: 592 sparse inline-data xattr
Tunefs Incomplete: 0
Feature RO compat: 1 unwritten
Root Blknum: 65   System Dir Blknum: 66
First Cluster Group Blknum: 32
Block Size Bits: 12   Cluster Size Bits: 17
Max Node Slots: 16
Extended Attributes Inline Size: 256
Label: mediadisk4
UUID: 1126B3D209AA4BE088260B2A590AB995
Hash: 2997730071 (0xb2adbb17)
DX Seed[0]: 0x00000000
DX Seed[1]: 0x00000000
DX Seed[2]: 0x00000000
Cluster stack: classic o2cb
Inode: 2   Mode: 00   Generation: 2716855348 (0xa1efec34)
FS Generation: 2716855348 (0xa1efec34)
CRC32: 00000000   ECC: 0000
Type: Unknown   Attr: 0x0   Flags: Valid System Superblock
Dynamic Features: (0x0)
User: 0 (root)   Group: 0 (root)   Size: 0
Links: 0   Clusters: 213645733
ctime: 0x50bf9210 -- Wed Dec 5 22:27:28 2012
atime: 0x0 -- Thu Jan 1 03:00:00 1970
mtime: 0x50bf9210 -- Wed Dec 5 22:27:28 2012
dtime: 0x0 -- Thu Jan 1 03:00:00 1970
ctime_nsec: 0x00000000 -- 0
atime_nsec: 0x00000000 -- 0
mtime_nsec: 0x00000000 -- 0
Refcount Block: 0
Last Extblk: 0   Orphan Slot: 0
Sub Alloc Slot: Global   Sub Alloc Bit: 65535
Thanks for any help.

This looks to be filesystem corruption. The reason the fsck's don't find anything is they are really _not_ doing any checking. In the filesystem is an unmounted-cleanly flag. This flag is set when the umount(1) is done. If the system were to crash with the filesystem still mounted, this unmounted-cleanly flag would not be set, so the system would consider the filesystem to need checking: no unmounted-cleanly flag, fsck has work to do; unmounted-cleanly flag set means fsck does nothing.
Be sure the filesystem is unmounted all around the cluster before attempting to repair the filesystem.
So do this:
    # fsck.ocfs2 -f /path/to/device/partition
The "-f" switch forces fsck.ocfs2 to ignore the state of the "unounted-cleanly" flag and actually perform its tests.
Does this repair the problem?

Bad Magic Number in Disk Label & DiskSuite

Envrionment:
E450
Solaris 8
DiskSuite 4.2.1
16 disks
Because of a power failure, after reboot one of the disks has bad magic number in its disk label. The slice was in a mirror. DiskSuite has hot spares and one of them took over the failed slice. I am trying to figure out how to get it back to where it was.
I think I should use 'format' to recover the disk label from the backup label. However, once the label is recovered, how do I make it stop using the hotspare and have the failed slice join back to the mirror?
Sorry if this is basic question, I am relatively new to Sun/Solaris and I just took over the E450.
Thanks,

Envrionment:
E450
Solaris 8
DiskSuite 4.2.1
16 disks
Because of a power failure, after reboot one of the
disks has bad magic number in its disk label. The
slice was in a mirror. DiskSuite has hot spares and
one of them took over the failed slice. I am trying to
figure out how to get it back to where it was.
I think I should use 'format' to recover the disk
label from the backup label. However, once the label
is recovered, how do I make it stop using the hotspare
and have the failed slice join back to the mirror?
Sorry if this is basic question, I am relatively new
to Sun/Solaris and I just took over the E450.
Thanks,Since the host spare took over then you're free to repair/replace the bad drive. In this case you could check the drive using format and partition to view the partitions. If the label is bad then I would suspect the drive is still good and a simple format>label and save command would repair the label. Then once this is done if all goes well then the system should rebuild the drive and the hot spare will not longer be used. The system should regonize the drive as a replacement and rebuild it then stop using the hot spare.
Michael

Java.lang.ClassFormatException : Bad Magic number Excpetion

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