push what I have so far.

.gitignore

+target/
+*.class
\ No newline at end of file

freud-experiments.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Maven: com.google.guava:guava:19.0" level="project" />
+  </component>
+</module>
\ No newline at end of file

pom.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>groupId</groupId>
+    <artifactId>freud-experiments</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>8</source>
+                    <target>8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>19.0</version>
+        </dependency>
+    </dependencies>
+
+    
+</project>
\ No newline at end of file

src/main/java/Main.java

+import com.google.common.primitives.Longs;
+
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.ObjectOutputStream;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+
+public class Main {
+
+    public static void main(String[] args) {
+        TestClassToSerialize myObject = new TestClassToSerialize();
+
+        fillObject(myObject);
+
+        FileOutputStream fos = null;
+        try {
+            fos = new FileOutputStream("my-symbols/idcm__fle");
+            writeObjectToFile(fos, myObject);
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        }
+
+    }
+
+    private static void writeObjectToFile(FileOutputStream fos, TestClassToSerialize myObject) {
+        try {
+            fos.write(anotherOne(myObject.getNameLen()));
+            fos.write(myObject.getFname().getBytes());
+            fos.write(anotherOne(myObject.getFeatureNamesCount()));
+//            fos.write(fromUnsignedInt16(myObject.getVnlen()));
+//            fos.write(myObject.getVname().getBytes());
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static byte[] anotherOne(long val) {
+        ByteBuffer buffer = ByteBuffer.allocate(Long.BYTES);
+        buffer.putLong(0, val);
+        return Arrays.copyOfRange(buffer.array(), 4, 8);
+
+//        return Arrays.copyOfRange(Longs.toByteArray(val), 4, 8);
+    }
+
+//    public static byte[] fromUnsignedInt(long value) {
+//        byte[] bytes = new byte[8];
+//        ByteBuffer.wrap(bytes).putLong(value);
+//        return Arrays.copyOfRange(bytes, 4, 8);
+//    }
+
+    private static void fillObject(TestClassToSerialize myObject) {
+        myObject.setNameLen(9);
+        myObject.setFname("idcm__fle");
+        myObject.setFeatureNamesCount(1);
+        myObject.setVname("as");
+        myObject.setVnlen(2);
+    }
+
+//    public static byte[] fromUnsignedInt16(long value) {
+//        byte[] bytes = new byte[8];
+//        ByteBuffer.wrap(bytes).putLong(value);
+//        return Arrays.copyOfRange(bytes, 6, 8);
+//    }
+}

src/main/java/TestClassToSerialize.java

+import java.io.Serializable;
+
+public class TestClassToSerialize implements Serializable {
+    private long nameLen;
+    private String fname;
+
+    // FEATURE NAMES
+    private long featureNamesCount;
+    private long vnlen;
+    private String vname;
+
+    public void setNameLen(long nameLen) {
+        this.nameLen = nameLen;
+    }
+
+    public void setFname(String fname) {
+        this.fname = fname;
+    }
+
+    public void setFeatureNamesCount(long featureNamesCount) {
+        this.featureNamesCount = featureNamesCount;
+    }
+
+    public void setVnlen(long vnlen) {
+        this.vnlen = vnlen;
+    }
+
+    public void setVname(String vname) {
+        this.vname = vname;
+    }
+
+    public long getNameLen() {
+        return nameLen;
+    }
+
+    public String getFname() {
+        return fname;
+    }
+
+    public long getFeatureNamesCount() {
+        return featureNamesCount;
+    }
+
+    public long getVnlen() {
+        return vnlen;
+    }
+
+    public String getVname() {
+        return vname;
+    }
+
+    //    // TYPE NAMES
+//    int type_names_count;
+//    //        int vnlen;
+//    String tname;
+//
+//    int samples_count;
+//    int uid_r;
+//    int time;
+//    int mem;
+//    int lock_holding_time;
+//    int waiting_time;
+//    int minor_page_faults;
+//    int major_page_faults;
+//
+//    // NUM OF FEATURES
+//    int num_of_features;
+//    int name_offset;
+//    int type_offset;
+//    int value;
+//
+//    // BRANCHES
+//    int num_of_branches;
+//    int branch_id;
+//    int num_of_executions;
+//    bool taken;
+//
+//    // CHILDREN
+//    int num_of_children;
+//    int c_id;
+
+}