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Maven command to list lifecycle phases along with bound goals?
...
Mabye I understood the question wrong, but this command is the "reverse lookup" to the question (Listing all phases this goal is in)? link says "Displays a list of the attributes for a Maven Plugin and/or goals (aka Mojo - Mave...
What causes imported Maven project in Eclipse to use Java 1.5 instead of Java 1.6 by default and how
...ted to add something to the answer already provided. maven-compiler-plugin by default will compile your project using Java 1.5 which is where m2e get's its information.
That's why you have to explicitly declare the maven-compiler-plugin in your project with something other then 1.5. Your effective ...
Coloring white space in git-diff's output
...d in red, you can then change core.whitespace, but blank-at-eol is enabled by default so you probably won't need to change that for the example you mention.
A possible source of confusion is that in the output of git diff, whitespace errors are only highlighted in the lines that are introduced, not...
What is “Power Save Mode” in IntelliJ IDEA and other Jetbrains IDEs?
...when using your laptop and choose to run the inspections only occasionally by turning power save mode off for a minute or two, or using Code->Inspect code... to see what needs attention.
See Settings->Inspections to find out whether you can live without the specific inspections, which will de...
REST APIs: custom HTTP headers vs URL parameters
...
Custom headers have the following advantages:
Can be read easily by network tools/scripts (authentication, meta info, ...)
Keeps urls free from security stuff (safer, not in browser/proxy caches)
Keeps urls cleaner: allows for better caching of resources
...
What is the difference between user and kernel modes in operating systems?
...stem APIs to access hardware or
memory. Due to the protection afforded
by this sort of isolation, crashes in
user mode are always recoverable. Most
of the code running on your computer
will execute in user mode.
Read more
Understanding User and Kernel Mode
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Using OpenSSL what does “unable to write 'random state'” mean?
...s happening seems to be that the .rnd file in your home directory is owned by root rather than your account. The quick fix:
sudo rm ~/.rnd
For more information, here's the entry from the OpenSSL FAQ:
Sometimes the openssl command line utility does not abort with a "PRNG not seeded" error mes...
.gitignore file, where should I put it in my xcode project?
...is approach good if you want to exclude some type files which is generated by OS or any other logging, cashing and etc. tools.
Per-repository git ignore: - In this approach your custom rules will be applied to specific git directory in your machine. Local per-repository rules can be added to the .gi...
What is the difference between join and merge in Pandas?
...
foo 1 4
bar 2 5
The same functionality can be had by using merge on the columns follows:
left = pd.DataFrame({'key': ['foo', 'bar'], 'val': [1, 2]})
right = pd.DataFrame({'key': ['foo', 'bar'], 'val': [4, 5]})
left.merge(right, on=('key'), suffixes=('_l', '_r'))
key va...
Heroku Postgres - terminate hung query (idle in transaction)
...gresql. Assuming that's not desirable or not an option ...)
Find the PID by running this sql:
SELECT pid , query, * from pg_stat_activity
WHERE state != 'idle' ORDER BY xact_start;
(The query may need mending dependent of the version of postgres - eventually, just select * from pg_stat_activi...