An error occurred: JZ006: Caught IOException: java.io.IOException: JZ0EM: End of data.

i am getting 

import groovy.sql.Sql

Class.forName("com.sybase.jdbc4.jdbc.SybDriver")

// Get basic info to connect
def hostname = hostProps.get("system.hostname")
def user = hostProps.get("sybase.user")
def pass = hostProps.get("sybase.pass")
def port = 21000

def wildvalue = instanceProps.get("wildvalue")

// Construct an SQL instance with a URL and a driver
def url = "jdbc:sybase:Tds:${hostname}:${port}"
def sql = Sql.newInstance(url, user, pass, "com.sybase.jdbc4.jdbc.SybDriver")

try {
    // Drop the table WNLsegments_logsegment if it exists
    sql.execute("if exists (select 1 from tempdb..sysobjects where name = 'WNLsegments_logsegment') drop table tempdb..WNLsegments_logsegment")
   //  sql.execute("if exists (select 1 from tempdb..sysobjects where name = 'WNLdblist_logsegment') drop table tempdb..WNLdblist_logsegment")
  
    def query1 = "select dbid, name as dbname, (case when status2 & 32768 = 32768 then 'MIX' else 'SEP' end) as logtype into tempdb..WNLdblist_logsegment from master..sysdatabases where status2 & 16 <> 16"
    sql.execute(query1)

    def query = """
        set nocount on
        declare @dbid int,
        @maxdbid int,
        @dbname varchar(50),
        @logtype char(3)
        select @dbid=min(dbid),@maxdbid=max(dbid) from tempdb..WNLdblist_logsegment
        select @dbname=dbname,@logtype = logtype from tempdb..WNLdblist_logsegment where dbid=@dbid

        while @dbid <= @maxdbid
        begin
        select @dbname=dbname,@logtype = logtype from tempdb..WNLdblist_logsegment where dbid=@dbid
        use @dbname

        declare @dbsize integer
        select db_name() dbname, s.name segname, s.segment, u.segmap,u.size, curunreservedpgs(db_id(), u.lstart, u.unreservedpgs) unreservedpgs
        into tempdb..WNLsegments_logsegment
        from master..sysusages u, syssegments s
        where u.dbid=db_id() and power(2,s.segment) = u.segmap & power(2,s.segment)  
        order by s.segment

        declare @pgsize integer
        select @pgsize=low/1024 from master.dbo.spt_values where number = 1 and type = 'E'
        select @dbsize=((sum(size)*@pgsize)/1024) from master..sysusages where dbid=@dbid

        select top 1 db_id(dbname),dbname as DBNAME,
        convert(integer,(sum(size)*@pgsize)/1024) as TOT_SEG_SIZE_MB,
        convert(integer,((sum(size)-sum(unreservedpgs))*@pgsize)/1024) as SEG_USED_MB, 
        convert(integer,(sum(unreservedpgs)*@pgsize)/1024) as SEG_FREE_MB,
        convert(integer,100*(sum(size)-sum(unreservedpgs))/sum(size)) as PERCENT_USED_SEG_MB
        from tempdb..WNLsegments_logsegment
        where segname='logsegment'
        group by dbname,segment
        order by dbname,segment
        set @dbid=@dbid+1
        end
        """
        
    def resultSet = sql.rows(query)

    // Process the resultSet (e.g., print or do something with the data)
    resultSet.each { row ->
        //println("DBID: ${row.DBID}")
       // println("SYB_INSTANCE: ${row.SYB_INSTANCE}")
        println("DBNAME: ${row.DBNAME}")
       // println("SEGMENT_NAME: ${row.SEGMENT_NAME}")
       // println("LOGTYPE: ${row.LOGTYPE}")
        println("TOT_SEG_SIZE_MB: ${row.TOT_SEG_SIZE_MB}")
        println("SEG_USED_MB: ${row.SEG_USED_MB}")
        println("SEG_FREE_MB: ${row.SEG_FREE_MB}")
        println("PERCENT_USED_SEG_MB: ${row.PERCENT_USED_SEG_MB}")
        println()
    }

       
} catch (Exception e) {
    // Handle any exceptions that occurred during execution
    println("An error occurred: ${e.message}")
    e.printStackTrace()
} 
   // Drop the table WNLsegments_logsegment if it exists
    sql.execute("if exists (select 1 from tempdb..sysobjects where name = 'WNLsegments_logsegment') drop table tempdb..WNLsegments_logsegment")

    // Drop the table WNLdblist_logsegment if it exists
    sql.execute("if exists (select 1 from tempdb..sysobjects where name = 'WNLdblist_logsegment') drop table tempdb..WNLdblist_logsegment")
   
    // Ensure the SQL connection is closed regardless of success or failure
    sql.close()

i am getting this error.

To talk in general, I don’t know SQL well, I suggest attempting to troubleshoot your code by temporarily removing parts and attempting to determine exactly which line/statement is causing the error. For example you might want to temporarily remove the try/catch which might help see which specific line is failing, or comment out parts of the code until you find just the lines(s) causing the error.