Develop Reference

OutOfMemory Issue

I tried to run the software tests already created in ellipse and now this error appears, any solution?
Logger logger = Logger.getLogger("");
logger.setLevel(Level.OFF);
//Remove as mensagens do chromedriver na consola (e no output)
System.out.println(String.format("%n%n", char.class));
SimpleDateFormat dateTimeInGMT = new SimpleDateFormat("dd-MMM-yyyy HH:mm:ss");
System.out.println("--> Teste executado no dia --> " + dateTimeInGMT.format(new Date()));
StringBuilder sb = new StringBuilder();
String str = "";
try {
String filename = "C:\\Eclipse\\eclipse\\fs.txt";
FileWriter fw = new FileWriter(filename, true);
// fw.write(dateTimeInGMT.format(new Date()));
fw.close();
BufferedReader br = new BufferedReader(new FileReader("C:\\Eclipse\\eclipse\\fs.txt"));
// read the file content
while (str != null) {
sb.append(str);
sb.append(System.lineSeparator());
str = br.readLine();
System.out.println(str);
}
br.close();
} catch (IOException ioe) {
System.out.println(ioe);
}
// TODO Auto-generated method stub
System.out.println("starting");
int tests = 0;
int success = 0;
int failed = 0;
List<Pair<String, String>> faileds = new ArrayList<>();
List<String> testsNames = new ArrayList<String>();
testsNames.add("UC2Login");
// testsNames.add("UC5consultarPerfil");
// testsNames.add("UC16CriarPaciente");
for (String classi : testsNames) {
try {
System.out.println("runnnig " + classi);
Class<?> c = Class.forName("casosUso." + classi);
Method method = c.getDeclaredMethod("start");
Object d = c.newInstance();
tests++;
#SuppressWarnings("unchecked")
Pair<Boolean, String> result = (Pair<Boolean, String>) method.invoke(d);
if (result.getKey()) {
success++;
} else {
failed++;
faileds.add(new Pair<String, String>(classi, result.getValue()));
}
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchMethodException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (SecurityException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (InstantiationException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IllegalAccessException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
System.out.println("\n\n\n\n ==== REPORT ====");
System.out.println(String.format("resume -> tests:%d success:%d failed:%d", tests, success, failed));
for (Pair<String, String> pair : faileds) {
System.out.println(String.format("%s - %s : %n%n", pair.getKey(), pair.getValue()));
}
}
--> Teste executado no dia --> 27-mai-2019 11:36:20
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Unknown Source)
at java.lang.AbstractStringBuilder.ensureCapacityInternal(Unknown Source)
at java.lang.AbstractStringBuilder.append(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at casosUso.Main1.main(Main1.java:44)

opencv java Error loading class org/bytedeco/javacpp/Loader. snapshot from video

i am trying to generate a snapshot from a video using the following code. and it is working fine running as a java application on sts.
public class VideoThumbTaker {
public static void main(String[] args)
{
FFmpegFrameGrabber g = new FFmpegFrameGrabber("/home/anupam/Downloads/jk.mp4");
g.setFormat("mp4");
try {
g.start();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
for (int i = 0 ; i < 1 ; i++) {
try {
ImageIO.write(g.grab().getBufferedImage(), "png", new File("/home/anupam/Downloads/" + System.currentTimeMillis() + ".png"));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
try {
g.stop();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
using maven dependency
<dependency>
<groupId>org.bytedeco</groupId>
<artifactId>javacv</artifactId>
<version>0.8</version>
</dependency>
after deploying a war file.the following code gives Error loading class org/bytedeco/javacpp/Loader
#RequestMapping(value = "menu9data", method = RequestMethod.POST)
public JSONObject view(#RequestPart(name = "file", required = false) MultipartFile image,#Valid MenuData model, BindingResult results) {
String name1;
FFmpegFrameGrabber g = new FFmpegFrameGrabber("/home/anupam/Downloads/"+name1); //Error
g.setFormat("mp4");
try {
System.out.println("enterss");
g.start();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
for (int i = 0 ; i < 1 ; i++) {
/* try {
// ImageIO.write(((Object) g.grab()).getBufferedImage(), "png", new File("/home/anupam/Downloads/"+name1+"snap"));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}*/
}
try {
g.stop();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}

Getting SVN Log of a particular Date Range in Java

I am trying to get the log from a SVN repo using SVNKit.
public static void svnLogTest() {
final SvnOperationFactory svnOperationFactory = new SvnOperationFactory();
final SvnLog log = svnOperationFactory.createLog();
SVNURL url = null;
try {
url = SVNURL
.parseURIEncoded("https://svn-repo");
} catch (SVNException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
log.setSingleTarget(SvnTarget.fromURL(url));
log.addRange(SvnRevisionRange.create(SVNRevision.create(111),
SVNRevision.create(222)));
log.getRevisionRanges();
SVNLogEntry logEntry = null;
try {
logEntry = log.run();
System.out.println(logEntry.getAuthor() + " " + logEntry.getRevision() + " "
+ logEntry.getDate());
} catch (SVNException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
But it will give me only the first revision, How should I iterate to print the log for a particular date range ?

This is because
log.run();
always returns only one log entry (the same is true for other SvnOperation#run methods). To get all entries use receiver:
log.setReceiver(new ISvnObjectReceiver<SVNLogEntry>() {
#Override
public void receive(SvnTarget target, SVNLogEntry logEntry) throws SVNException {
//process logEntry here
}
});
log.run();

packet length reduces with jpcap

I wrote a server in java that is on port 4444.
Then I made a mysql connection with terminal to port 4444(my mysql real port is 3306)
Then with jpcap I captured the packet and changed the src port and ip to my server port and ip and also I changed destination port and id to mysql port and ip.
and I send the new packet with jpcapSender. The problem is that when I send the packet the length of that is 74. but when I capture that packet it is 60 bytes. I guessed it is because the dont_frag is false. But changing it didn't help.
package connection;
public class Bridge implements PacketReceiver {
NetworkInterface device;
static int DeviceName;
public Bridge(NetworkInterface device,int deviceName) throws IOException {
ServerSocket ss = new ServerSocket(4444);
this.device = device;
this.DeviceName=deviceName;
System.err.println(DeviceName);
JpcapCaptor jpcap;
jpcap = JpcapCaptor.openDevice(device, 2000, false, 20);
// System.err.println(jpcap.isNonBlockinMode());
jpcap.loopPacket(-1, new Bridge());
}
public Bridge() {
}
#Override
public void receivePacket(Packet p) {
if (p instanceof TCPPacket) {
TCPPacket myPacket = (TCPPacket) p;
if(myPacket.dst_port==3306 && myPacket.src_port==4444){
System.err.println("don't frag"+myPacket.len);
}
if (myPacket.dst_port == 4444) {
if(myPacket.syn==true){
System.err.println("connecting"+myPacket.len);
DatalinkPacket dlp=myPacket.datalink;
System.err.println(dlp.toString());
try {
Server.src_ip = myPacket.src_ip;
Server.src_port = myPacket.src_port;
myPacket.src_ip = InetAddress.getByName("127.0.0.1");// TODO
// variable
myPacket.src_port = 4444;
myPacket.dst_ip = InetAddress.getByName("127.0.0.1");// System.err.println("device"+this.DeviceName);
myPacket.dst_port = 3306;
sendPacket(myPacket);
} catch (UnknownHostException e) {
// Auto-generated catch block
e.printStackTrace();
}//
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (myPacket.syn = false ) {//
System.err.println("query request");
MySqlRequestParser parser = new MySqlRequestParser(
myPacket.data);
String query = parser.getQuery();
System.err.println(query);
// TODO get rules from db
// TODO check for rules
try {
Server.src_ip = myPacket.src_ip;
Server.src_port = myPacket.src_port;
// myPacket.src_ip = InetAddress.getByName("127.0.0.1");// TODO
// variable
//myPacket.src_port = 4444;
myPacket.dst_ip = InetAddress.getByName("127.0.0.1");// TODO
myPacket.dst_port = 3306;
sendPacket(myPacket);
} catch (UnknownHostException e) {
// Auto-generated catch block
e.printStackTrace();
}//
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
if (myPacket.src_port == 3306) {
System.err.println("response"+myPacket.sequence);
if (myPacket.syn == false || myPacket.syn == true) {
System.err.println("response to query");
myPacket.dst_ip = Server.src_ip;
myPacket.dst_port = Server.src_port;
myPacket.src_port = 4444;// TODO about ip it's kinda
// fishiiii
try {
sendPacket(myPacket);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
public void sendPacket(TCPPacket packet) throws IOException {
NetworkInterface[] devices = JpcapCaptor.getDeviceList();
System.err.println("dev number"+DeviceName);
NetworkInterface dev=devices[DeviceName];
System.err.println("in sender packet src ip"
+ packet.src_ip.getHostAddress() + " dst ip "
+ packet.dst_ip.getHostAddress() + " src port "
+ packet.src_port + " dst port " + packet.dst_port+" len"+packet.len+" datalink:"+packet.datalink.toString());
JpcapSender sender = JpcapSender.openDevice(dev);
//TCPPacket tp=new TCPPacket(packet.src_port,packet.dst_port, packet.sequence, packet.ack_num, packet.urg, packet.ack, packet.psh, packet.rst, packet.syn, packet.fin, packet.rsv1, packet.rsv2, packet.window, packet.urgent_pointer);
System.err.println("open device"+packet.len);
boolean df=packet.dont_frag;
boolean mf=packet.more_frag;
boolean rf=packet.rsv_frag;
packet.dont_frag=true;
packet.offset=(short)(((packet.offset&0xFF)<<8)|((packet.offset&0xF00)>>8));
packet.offset=(short)((packet.offset|((mf?0x0020:0)|(df?0x0040:0)|(rf?0x0080:0))));
System.err.println("don't frag"+packet.dont_frag);
sender.sendPacket(packet);
System.err.println("packet sent");
sender.close();
}
public static void main(String[] arg) throws IOException {
NetworkInterface[] devices = JpcapCaptor.getDeviceList();
int localIndex = 0;
for (int i = 0; i < devices.length; i++) {
if (devices[i].name.equals("lo")) {
localIndex = i;
}
}
System.err.println("lo:" + localIndex);
Bridge br = new Bridge(devices[localIndex],localIndex);
}
}

passive ftp in java - why is the stream not ready

yet another java problem ...
got a client which should connect to a server via passive mode.
it seems to work fine, i get the ip adress and the port and the passivesocket says that it's ready.
but the passivesocket.getInputStream isn't ready at all - so i can't read from it and don't get the response to LIST.
can't figure out why, any suggestions?
public synchronized void getPasvCon() throws IOException, InterruptedException {
// Commands abholen
// IP Adresse holen
Thread.sleep(200);
String pasv = commands.lastElement();
String ipAndPort = pasv.substring(pasv.indexOf("(") + 1,
pasv.indexOf(")"));
StringTokenizer getIp = new StringTokenizer(ipAndPort);
// holt die IP
String ipNew = ""; // IP für den neuen Socket
for (int i = 0; i < 4; i++) {
if (i < 3) {
ipNew += (getIp.nextToken(",") + ".");
} else {
ipNew += (getIp.nextToken(","));
}
}
Integer portTemp1 = new Integer( getIp.nextToken(","));
Integer portTemp2 = new Integer (getIp.nextToken(","));
portNew = (portTemp1 << 8 )+ portTemp2;
System.out.println(">>>>> " + ipNew + ":" + portNew);
try {
pasvSocket = new Socket(ipNew, portNew);
System.out.println("Socket verbunden: "+ pasvSocket.isConnected());
} catch (UnknownHostException e) {
System.out.println("Host unbekannt");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
fromPasvServer = new BufferedReader(new InputStreamReader(
pasvSocket.getInputStream()));
Thread.sleep(2000);
System.out.println("Streams bereit: " + fromPasvServer.ready() + " | " );
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
writePasvCommands = new PrintWriter(pasvSocket.getOutputStream(),
true);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Thread.sleep(3000);
Thread pasvKonsole = new Thread(new PasvKonsole(this));
pasvKonsole.start();
}
public void LIST() throws IOException {
writeCommands.print("LIST\n");
writeCommands.flush();
}
public void run() {
try {
connect();
// getStatus();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
USER();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
PASS();
try {
Thread.sleep(2000);
PASV();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
import java.io.IOException;
public class PasvKonsole extends Thread {
Client client;
public PasvKonsole(Client client) {
this.client = client;
}
public void run() {
System.out.println("========= PasvKonsole started");
while(true) {
try {
String lineP = client.fromPasvServer.readLine();
System.out.println("***" + lineP);
System.out.println("Ich bin da und tue auch was");
} catch (IOException e) {}
}
}
}

Added a Thread.Sleep and it works.