neomatrix369

Minimum JVM Flags

• https://gist.github.com/sushanthmangalore/69871cbc87c97cbca67a130469fdee90
• Guide to the Most Important JVM Parameters
• Minimum flags to record GC logs (plus enabling safepoint stats)
  • Java 8

    -Xloggc:/path/to/gc.log    # <Location to write your GC log to>
    -XX:LogFile=<Location to write your Safepoint log to>
    -XX:+UseGCLogFileRotation 
  

neomatrix369

0xf6135a4598782bb2a263281fc5f8520b8760f385

neomatrix369

Transformation Priority Premise
 
({}–>nil) no code at all->code that employs nil
(nil->constant)
(constant->constant+) a simple constant to a more complex constant
(constant->scalar) replacing a constant with a variable or an argument
(statement->statements) adding more unconditional statements.
(unconditional->if) splitting the execution path
(scalar->array)
(array->container)

neomatrix369

rsync -vpcrazh --progress [source folder] [destination folder]

or 

rsync --verbose --perms --checksum --recursive --archive --compress --human-readable --progress  [source folder] [destination folder]


-v, --verbose               increase verbosity
-p, --perms                 preserve permissions
-c, --checksum              skip based on checksum, not mod-time & size

neomatrix369

$ tree -fL 2 build
build
└── build/linux-x86_64-normal-server-release
    ├── build/linux-x86_64-normal-server-release/bootcycle-spec.gmk
    ├── build/linux-x86_64-normal-server-release/build.log
    ├── build/linux-x86_64-normal-server-release/build.log.old
    ├── build/linux-x86_64-normal-server-release/buildtools
    ├── build/linux-x86_64-normal-server-release/compare.sh
    ├── build/linux-x86_64-normal-server-release/config.h
    ├── build/linux-x86_64-normal-server-release/config.log

neomatrix369

$ gedit .bashrc
$ export SOURCE_CODE=$HOME/dev/jigsaw
$ export JAVA_HOME=$SOURCE_CODE/m2/build/linux-x86_64-normal-server-release/images/jdk

Ensure -XX:MaxPermSize=128m is removed from MAVEN_OPTS or any other XXX_OPTS env variables

git clone https://github.com/forge/core.git forge-core

Change the $HOME/.m2/settings.xml file
<settings>

neomatrix369

import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.runners.MockitoJUnitRunner;

@RunWith(MockitoJUnitRunner.class)
public class ParameterizedMocks {
    @Mock
    private UserService userService;

neomatrix369

Feature: Update local repo on the Betterrev server with changesets from the OpenJDK mercurial repos

As the Adopt OpenJDK user (on the Betterrev server)
I would like to retrieve changesets from the OpenJDK mercurial repos into my local repos
So that my local repos are always in sync with the OpenJDK mercurial repos

Core
====
Scenario: Script to connect to the OpenJDK mercurial repos is available
Given (the actor) is running and has the necessary configuration in place

neomatrix369

assertThat  <- function(actualValue, expectedValue) {
  if (as.character(actualValue) == as.character(expectedValue)) {
    print("TEST PASSED: actual and expected values match.")
  } else {
    print("TEST FAILED: actual and expected values do not match.")
  }
}

is         <- function(value) {
  return(value)

neomatrix369

> x <- seq(0,10,length=250);
> y <- x <- seq(-3,3, length=50);
> f <- function(x,y) { return (dnorm(x) * dnorm(y))};
> z <- outer(x,y,f);
> par(bg = "white");
> persp(x,y,z,zlim=c(0,0.25), theta=50, phi=10);