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Richard Kolb rjdkolb

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rjdkolb / proof.md
Created May 18, 2025 11:04

aspe:keyoxide.org:6WBK73VCK7VRHYWLWCDUMJZRWU

@rjdkolb
rjdkolb / gist:56ff65b7323e2f586a4fc19484ad9ad2
Created May 18, 2025 10:58
proof.md
aspe:keyoxide.org:6WBK73VCK7VRHYWLWCDUMJZRWU
@rjdkolb
rjdkolb / keybase.md
Created June 7, 2020 06:19

Keybase proof

I hereby claim:

  • I am rjdkolb on github.
  • I am rjdkolb (https://keybase.io/rjdkolb) on keybase.
  • I have a public key ASDBedilzVfu6WMsymNimRG8hQl6dgjXkuAEU-321XJJrgo

To claim this, I am signing this object:

@rjdkolb
rjdkolb / DuplicateSumTest.java
Last active July 12, 2018 10:26
Java Cloud Conference (2018) Caffeine Challenge. More about Caffeine : https://youtu.be/Xl1XBJLfIDU
public class DuplicateSumTest {
@Test
public void sumNonDuplicates() {
Assert.assertEquals("", 3, sumNonDuplicates(new int[]{1, 2}));
}
@Test
public void sumDuplicates() {
Assert.assertEquals("", 3, sumNonDuplicates(new int[]{2, 1, 2, 1}));
}
@rjdkolb
rjdkolb / log4j2.xml
Created June 9, 2016 07:10
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN" name="API" monitorInterval="30">
<Appenders>
<RollingRandomAccessFile name="CatchAll" fileName="logs/all.log" immediateFlush="false" append="true" FilePattern="logs/$${date:yyyy-MM}/all-%d{yyyy-MM-dd}-%i.log.gz">
<PatternLayout>
<Pattern>%d %m%n</Pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy interval="1" modulate="true" />
<SizeBasedTriggeringPolicy size="2 GB"/>
@rjdkolb
rjdkolb / POI.java
Last active December 8, 2015 11:46
Generate a 12 meg XLSX file 60000x85 columns
List<String> list = new ArrayList<>();
for (int count = 0; count < 60000; count++) {
list.add("T " + count);
}
SXSSFWorkbook workbook = new SXSSFWorkbook();
SXSSFSheet sheet = workbook.createSheet("FIELD OPERATIONS TRACKER");
for (int i = 0; i < list.size(); i++) {
SXSSFRow rowHeader = sheet.createRow(i);
for (int cellcount = 0; cellcount < 85; cellcount++) {
SXSSFCell cell = rowHeader.createCell(cellcount);
@rjdkolb
rjdkolb / JMHJackson.java
Created July 22, 2015 17:42
public static AtomicInteger counter = new AtomicInteger(1);
public static final String user1JsonStart = "{\n"
+ " \"name\" : { \"first\" : \"Joe\", \"last\" : \"Sixpack";
public static final String user1JsonEnd = "\" },\n"
+ " \"gender\" : \"MALE\",\n"
+ " \"verified\" : false,\n"
+ " \"userImage\" : \"Rm9vYmFyIQ==\"\n"
+ "}";
@rjdkolb
rjdkolb / gist:4829208096c488ad4c3d
Created July 9, 2015 11:21
Java 8 Java 8 G1GC Java 9 Java 9 G1GC
DynamicLanguages.groovy 402.142 352.266 397.495 370.121
ExceptionsBenchMark.throwRuntimeException 885181.859 823326.931 910622.671 843228.203
GeneratePoiWorkBook.generatePoiXLSWorkBook 34205.392 28162.636 35129.546 28693.55
GeneratePoiWorkBook.generatePoiXLSXWorkBook 1125.074 980.061 1172.468 1012.47
GeneratePrimeNumbersWithForLoop.generatePrime 231035.868 230904.102 231405.021 230599.11
Jackson.jsonMashal 30019.081 22232.937 31908.426 24242.968
Jackson.jsonUnmashal 26942.264 20443.724 26736.986 22404.13
Jackson.xmlMashalJackson 22868.064 19657.647 23112.766 19947.204
Jackson.xmlMashalJacksonStatic 691051.644 441105.658 745753.342 487013.862
@rjdkolb
rjdkolb / App.java
Last active August 29, 2015 14:19
Java P Byte Code
public class App {
public void createPrimativeInteger(){
int x = 100000000;
}
public void createObjectIntegerNonAutoBoxing(){
int x = 200000000;
}
public void createObjectIntegerAutoBoxing(){
Integer x = 300000000;
@rjdkolb
rjdkolb / gist:7301662
Created November 4, 2013 12:13
How to spin up a restful webserver with jersey 1.x
import java.io.IOException;
import com.sun.jersey.api.container.httpserver.HttpServerFactory;
import com.sun.jersey.api.core.PackagesResourceConfig;
import com.sun.jersey.api.core.ResourceConfig;
import com.sun.net.httpserver.HttpServer;
public class RunRest {
static final String BASE_URI = "http://localhost:9999/rest/";