Making JRE smaller (portable)

I've already done a simple application and I wanted to make it as portable as possible... I'm using jre1.60_02 which, compressed, is about 17mb and my application, is a .jar file which size is less than 50 kb.
I've read in README.TXT (which installs with jre) i could remove a couple of files... anyway... those files rerpresent 1 or 2 mb...
Is there any way to make it smaller keeping it legal :) ?
I've removed this files under windows (if i've removed a file i shouldn't have please let me know)
lib\ext\sunjce_provider.jar
lib\ext\localedata.jar
lib\ext\ldapsec.jar
lib\ext\dnsns.jar
bin\rmid.exe
bin\rmiregistry.exe
bin\tnameserv.exe
bin\keytool.exe
bin\kinit.exe
bin\klist.exe
bin\ktab.exe
bin\orbd.exe
bin\servertool.exe
bin\javaws.exe
lib\javaws.jar
bin\java.exe
bin\javacpl.exe
bin\jucheck.exe
bin\jusched.exe
bin\wsdetect.dll
bin\npjpi160_02.dll
bin\NPJava11.dll
bin\NPJava12.dll
bin\NPJava13.dll
bin\NPJava14.dll
bin\NPJava32.dll
bin\NPOJI610.dll
bin\RegUtils.dll
bin\axbridge.dll
bin\deploy.dll
bin\jpicom.dll
bin\javacpl.cpl
bin\jpiexp.dll
bin\jpinscp.dll
bin\jpioji.dll
bin\jpishare.dll
lib\deploy.jar
lib\plugin.jar
lib\javaws.jar
Any ideas?
Thanks four your time :)

Is intellectual curiosity dead? Why do some front-end developers spends zero time learning the architecture and concepts of a back-end database before throwing code over the cubicle wall?
Your questions screams loudly that you have invested no time in learning anything in Oracle beyond, perhaps, SELECT * FROM t.
No you can not do that. No Oracle is not brain-dead MS Access.
If you want a portable application put away the toys, read the concept and architecture docs at http://tahiti.oracle.com, and perhaps create your application using Application Express.

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Author:   [email protected]
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http://www.debreuil.com/docs/
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Adobe Community Expert
Dev blog,
http://www.quip.net/blog/
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I've made a test with gcc 4.3.2, tcc 0.9.24 and llvm-gcc 2.4. Here's the result: (_s indicates stripped, _ns not stripped)
gcc_Os_ns 9.7K
gcc_Os_s 6.2K
gcc_ns 11K
gcc_s 7.1K
getfile.c 5.1K
llvm-Os_ns 11K
llvm-Os_s 6.7K
llvm-ns 11K
llvm-s 7.3K
tcc_Os_ns 7.4K
tcc_Os_s 6.8K
tcc_ns 7.4K
tcc_s 6.8K
Tested file:
/* getfile.c (c) Johannes Krampf */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/types.h>
#include <sys/socket.h>
int main(int argc, char** argv) {
int rv;
int match = 0;
int sockfd = 0;
int status = 0;
size_t reqsize = 45;
char* url = NULL;
char* posSlash = NULL;
char* posSearch = NULL;
char* dynBuffer = NULL;
FILE* outfile = NULL;
struct addrinfo hints;
struct addrinfo *servinfo = NULL;
struct addrinfo *p = NULL;
if (3 != argc) {
puts("FEHLER: Falsche Zahl Argumente.");
puts("\nBenutzung: getfile [url][datei]");
return -1;
url = argv[1];
if (NULL == url) {
return 0;
if ( (7 < strlen(url)) &&
(0 == strncmp("http://", url, 7)) ) {
url += 7;
posSlash = strchr(url, '/');
if (NULL == posSlash) {
dynBuffer = url;
dynBuffer = (char *)calloc(strlen(url)+1, sizeof(char));
if (NULL == dynBuffer) {
return -1;
strncpy(dynBuffer, url, strlen(url));
}else {
dynBuffer = (char *)calloc((size_t)(posSlash-url+1), sizeof(char));
if (NULL == dynBuffer) {
return -1;
strncpy(dynBuffer, url, (size_t)(posSlash-url));
dynBuffer[posSlash-url] = '\0';
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_CANONNAME;
if ((rv = getaddrinfo(dynBuffer, "http", &hints, &servinfo)) != 0) {
free(dynBuffer);
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(rv));
return -1;
free(dynBuffer);
dynBuffer = NULL;
for(p = servinfo; p != NULL; p = p->ai_next) {
if (AF_INET == p->ai_addr->sa_family) {
dynBuffer = (char *)calloc(INET_ADDRSTRLEN+1, sizeof(char));
if (NULL == dynBuffer) {
freeaddrinfo(servinfo);
return -1;
inet_ntop(AF_INET, &(((struct sockaddr_in *)p->ai_addr)->sin_addr), dynBuffer, INET_ADDRSTRLEN);
}else if (AF_INET6 == p->ai_addr->sa_family) {
dynBuffer = (char *)calloc(INET6_ADDRSTRLEN+1, sizeof(char));
if (NULL == dynBuffer) {
freeaddrinfo(servinfo);
return -1;
inet_ntop(AF_INET6, &(((struct sockaddr_in6 *)p->ai_addr)->sin6_addr), dynBuffer, INET6_ADDRSTRLEN);
}else {
fprintf(stderr, "Fehler nach getaddrinfo: Ungueltiger Protokolltyp '%x', breche ab.\n", p->ai_addr->sa_family);
free(dynBuffer);
freeaddrinfo(servinfo);
return -1;
printf("Verbinde zu %s (%s)...", servinfo->ai_canonname, dynBuffer);
fflush(stdout);
free(dynBuffer);
dynBuffer = NULL;
if ((sockfd = socket(p->ai_family, p->ai_socktype,
p->ai_protocol)) == -1) {
continue;
if (connect(sockfd, p->ai_addr, p->ai_addrlen) == -1) {
close(sockfd);
puts("fehlgeschlagen.");
continue;
break;
freeaddrinfo(servinfo);
if (p == NULL) {
return -1;
}else {
puts("erfolgreich verbunden.");
if (NULL == posSlash) {
reqsize += strlen(url) + 1;
} else {
reqsize += (posSlash - url) + strlen(posSlash);
dynBuffer = (char *)calloc(reqsize, sizeof(char));
if (NULL == dynBuffer) {
close(sockfd);
return -1;
strcpy(dynBuffer, "GET /");
if (NULL != posSlash) {
strcat(dynBuffer, posSlash+1);
strncat(dynBuffer, " HTTP/1.1\r\nHost: ", 17);
if (NULL == posSlash) {
strncat(dynBuffer, url, strlen(url));
}else {
strncat(dynBuffer, url, (size_t)(posSlash - url));
strncat(dynBuffer, "\r\nConnection: close", 19);
strncat(dynBuffer, "\r\n\r\n", 4);
if (-1 == send(sockfd, dynBuffer, reqsize, 0)) {
free(dynBuffer);
puts("Fehler beim Senden der Anfrage, breche ab.");
return -1;
free(dynBuffer);
dynBuffer = NULL;
dynBuffer = (void *)calloc(1025, sizeof(char));
if (NULL == dynBuffer) {
close(sockfd);
return -1;
printf("Anfrage gesendet, warte auf Antwort...");
fflush(stdout);
while (0 < (rv = recv(sockfd, dynBuffer, 1024, MSG_WAITALL))) {
dynBuffer[rv] = '\0';
if (0 == status) {
if ((0 == strncmp("HTTP/1.", dynBuffer, 7)) &&
(12 < rv) &&
(0 == strncmp("200", dynBuffer + 9, 3))) {
status = 200;
}else {
close(sockfd);
posSlash = strchr(dynBuffer, '\r');
if (NULL == posSlash) {
fprintf(stderr, "\nUngueltige Antwort, breche ab.\n");
}else {
*posSlash = '\0';
fprintf(stderr, "\nAntwort: '%s', breche ab.\n", dynBuffer);
free(dynBuffer);
return -1;
if (4 == match) {
fwrite(dynBuffer, 1, rv, outfile);
}else {
posSearch = dynBuffer;
while('\0' != *posSearch) {
if ( (((0 == match) || (2 == match)) && ((char)13 == *posSearch)) ||
(((1 == match) || (3 == match)) && ((char)10 == *posSearch)) ) {
match++;
}else {
match = 0;
if (4 == match) {
outfile = fopen (argv[2],"wb");
if (NULL == outfile) {
close(sockfd);
free(dynBuffer);
fprintf(stderr, "Konnte Datei '%s' nicht oeffnen!", argv[2]);
return -1;
fwrite(posSearch + 1, 1, rv-(posSearch-dynBuffer+1), outfile);
break;
posSearch++;
close(sockfd);
fclose(outfile);
free(dynBuffer);
dynBuffer = NULL;
puts("erhalten.");
* GET /index.html HTTP/1.1
* Host: www.example.com
return 0;

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