Eu tenho um arquivo similaire para isso: ...

The hotspot server JVM has specific code-path optimizations
# which yield an approximate 10% gain over the client version.
export CATALINA_OPTS="$CATALINA_OPTS -server"
#############HDK1001#############

# Disable remote (distributed) garbage collection by Java clients
# and remove ability for applications to call explicit GC collection
export CATALINA_OPTS="$CATALINA_OPTS -XX:+DisableExplicitGC"

# Check for application specific parameters at startup
if [ -r "$CATALINA_BASE/bin/appenv.sh" ]; then
. "$CATALINA_BASE/bin/appenv.sh"
fi
 #############HDK7564#############
# Disable remote (distributed) garbage collection by Java clients
# and remove ability for applications to call explicit GC collection
export CATALINA_OPTS="$CATALINA_OPTS -XX:+DisableExplicitGC"

Eu quero começar a leitura da linha onde existe a palavra "HDK1001" e terminá-lo onde o mundo "HDK7564"

Eu tentei com este código, mas eu sou incapaz de fazer a limitação

public static HashMap<String, String> getEnvVariables(String scriptFile,String config) {
    HashMap<String, String> vars = new HashMap<String, String>();
    try {

        FileInputStream fstream = new FileInputStream(scriptFile);
        BufferedReader br = new BufferedReader(new InputStreamReader(fstream));
        String strLine;
        String var= "HDK1001";

        while ((strLine = br.readLine()) != null  ) {

            if (strLine.startsWith("export") && !strLine.contains("$")) {
                strLine = strLine.substring(7);
                Scanner scanner = new Scanner(strLine);
                scanner.useDelimiter("=");
                if (scanner.hasNext()) {
                    String name = scanner.next();
                    String value = scanner.next();
                    System.out.println(name+"="+value);
                    vars.put(name, value);
                }
            }

Ajude-me, por favor