Error while ant build

I got the following error while ant build on Red Hat Linux OS

Please can anybody give me the solution..

Thank you....

java.lang.InternalError

at java.util.zip.Deflater.deflate(byte[], int, int) (/lib/ssa/libgcj.so.4.0.0

)

at java.util.zip.DeflaterOutputStream.deflate() (/lib/ssa/libgcj.so.4.0.0)

at java.util.zip.DeflaterOutputStream.write(byte[], int, int) (/lib/ssa/libgc

j.so.4.0.0)

at java.util.zip.GZIPOutputStream.write(byte[], int, int) (/lib/ssa/libgcj.so

.4.0.0)

at org.apache.tools.ant.taskdefs.Pack.zipFile(java.io.InputStream, java.io.Ou

tputStream) (/usr/lib/lib-org-apache-tools-ant-1.5.2.so)

at org.apache.tools.ant.taskdefs.Pack.zipFile(java.io.File, java.io.OutputStr

eam) (/usr/lib/lib-org-apache-tools-ant-1.5.2.so)

at org.apache.tools.ant.taskdefs.GZip.pack() (/usr/lib/lib-org-apache-tools-a

nt-1.5.2.so)

at org.apache.tools.ant.taskdefs.Pack.execute() (/usr/lib/lib-org-apache-tool

s-ant-1.5.2.so)

at org.apache.tools.ant.Task.perform() (/usr/lib/lib-org-apache-tools-ant-1.5

.2.so)

at org.apache.tools.ant.Target.execute() (/usr/lib/lib-org-apache-tools-ant-1

.5.2.so)

at org.apache.tools.ant.Target.performTasks() (/usr/lib/lib-org-apache-tools-

ant-1.5.2.so)

at org.apache.tools.ant.Project.executeTarget(java.lang.String) (/usr/lib/lib

-org-apache-tools-ant-1.5.2.so)

at org.apache.tools.ant.taskdefs.Ant.execute() (/usr/lib/lib-org-apache-tools

-ant-1.5.2.so)

at org.apache.tools.ant.taskdefs.CallTarget.execute() (/usr/lib/lib-org-apach

e-tools-ant-1.5.2.so)

at org.apache.tools.ant.Task.perform() (/usr/lib/lib-org-apache-tools-ant-1.5

.2.so)

at org.apache.tools.ant.Target.execute() (/usr/lib/lib-org-apache-tools-ant-1

.5.2.so)

at org.apache.tools.ant.Target.performTasks() (/usr/lib/lib-org-apache-tools-

ant-1.5.2.so)

at org.apache.tools.ant.Project.executeTarget(java.lang.String) (/usr/lib/lib

-org-apache-tools-ant-1.5.2.so)

at org.apache.tools.ant.taskdefs.Ant.execute() (/usr/lib/lib-org-apache-tools

-ant-1.5.2.so)

at org.apache.tools.ant.Task.perform() (/usr/lib/lib-org-apache-tools-ant-1.5

.2.so)

at org.apache.tools.ant.Target.execute() (/usr/lib/lib-org-apache-tools-ant-1

.5.2.so)

at org.apache.tools.ant.Target.performTasks() (/usr/lib/lib-org-apache-tools-

ant-1.5.2.so)

at org.apache.tools.ant.Project.executeTarget(java.lang.String) (/usr/lib/lib

-org-apache-tools-ant-1.5.2.so)

at org.apache.tools.ant.Project.executeTargets(java.util.Vector) (/usr/lib/li

b-org-apache-tools-ant-1.5.2.so)

at org.apache.tools.ant.Main.runBuild(java.lang.ClassLoader) (/usr/lib/lib-or

g-apache-tools-ant-1.5.2.so)

at org.apache.tools.ant.Main.start(java.lang.String[], java.util.Properties,

java.lang.ClassLoader) (/usr/lib/lib-org-apache-tools-ant-1.5.2.so)

at org.apache.tools.ant.Main.main(java.lang.String[]) (/usr/lib/lib-org-apach

e-tools-ant-1.5.2.so)

[3134 byte] By [snkssaa] at [2007-9-25]