SystemUtils (Root POM 0.9.18-SNAPSHOT API)

java.lang.Object
- de.larssh.utils.SystemUtils

public final class SystemUtils
extends Object

This class contains helper methods for system needs.

Constants have been taken from System.getProperties() with the following exclusions:

Excluded Properties
System Property	Direct Representation	Representation for technical usage
`file.separator`	`File.separatorChar`
`path.separator`	`File.pathSeparatorChar`
`line.separator`	`System.lineSeparator()`	`Strings.NEW_LINE`
`Charset`	`Charset.defaultCharset()`	`Strings.DEFAULT_CHARSET`
`Locale`	`Locale.getDefault()`	`Strings.DEFAULT_LOCALE`

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`DEFAULT_FILE_NAME_SEPARATOR` Constant `"/"` as system-independent name-separator character for use in paths, represented as a string for convenience.
`static char`	`DEFAULT_FILE_NAME_SEPARATOR_CHAR` Constant `'/'` as system-independent name-separator character for use in paths.
`static String`	`FILE_EXTENSION_SEPARATOR` Constant `"."` as separator between file name and file extension, represented as a string for convenience.
`static char`	`FILE_EXTENSION_SEPARATOR_CHAR` Constant `'.'` as separator between file name and file extension.
`static String`	`JAVA_CLASS_PATH` Java class path
`static String`	`JAVA_CLASS_VERSION` Java class format version number
`static String`	`JAVA_COMPILER` Name of JIT compiler to use
`static String`	`JAVA_EXT_DIRS` Deprecated. This property, and the mechanism which implements it, may be removed in a future release.
`static String`	`JAVA_HOME` Java installation directory
`static String`	`JAVA_IO_TMPDIR` Default temporary file path Better not rely on this in case `Files.createTempDirectory(Path, String, java.nio.file.attribute.FileAttribute...)`
`static String`	`JAVA_LIBRARY_PATH` List of paths to search when loading libraries
`static String`	`JAVA_SPECIFICATION_NAME` Java Runtime Environment specification name
`static String`	`JAVA_SPECIFICATION_VENDOR` Java Runtime Environment specification vendor
`static String`	`JAVA_SPECIFICATION_VERSION` Java Runtime Environment specification version
`static String`	`JAVA_VENDOR` Java Runtime Environment vendor
`static String`	`JAVA_VENDOR_URL` Java vendor URL
`static String`	`JAVA_VERSION` Java Runtime Environment version
`static String`	`JAVA_VM_NAME` Java Virtual Machine implementation name
`static String`	`JAVA_VM_SPECIFICATION_NAME` Java Virtual Machine specification name
`static String`	`JAVA_VM_SPECIFICATION_VENDOR` Java Virtual Machine specification vendor
`static String`	`JAVA_VM_SPECIFICATION_VERSION` Java Virtual Machine specification version
`static String`	`JAVA_VM_VENDOR` Java Virtual Machine implementation vendor
`static String`	`JAVA_VM_VERSION` Java Virtual Machine implementation version
`static String`	`OS_ARCH` Operating system architecture
`static String`	`OS_NAME` Operating system name
`static String`	`OS_VERSION` Operating system version
`static String`	`USER_DIR` User's current working directory
`static String`	`USER_HOME` User's home directory Better not rely on this in case `getUserHome()` is an appropriate alternative.
`static String`	`USER_NAME` User's account name Better not rely on this in case `getUserName()` is an appropriate alternative.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static Path`	`getJavaExecutable()` Determines the system specific path to the current JVMs binary executable.
`static Path`	`getUserHome()` User's home directory
`static String`	`getUserName()` User's account name
`static boolean`	`isWindows()` Validates the system property `os.name` and returns true on Windows OS.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - DEFAULT_FILE_NAME_SEPARATOR_CHAR
```
public static final char DEFAULT_FILE_NAME_SEPARATOR_CHAR
```
    Constant '/' as system-independent name-separator character for use in paths. Remember to use File.separatorChar when working with system-dependent paths!
    Why shouldn't I use '/' directly?
    Using '/' is bad practice, as it holds implementation specific information.
  - DEFAULT_FILE_NAME_SEPARATOR
```
public static final String DEFAULT_FILE_NAME_SEPARATOR
```
    Constant "/" as system-independent name-separator character for use in paths, represented as a string for convenience. This string contains a single character, namely DEFAULT_FILE_NAME_SEPARATOR_CHAR. Remember to use File.separator when working with system-dependent paths!
    Why shouldn't I use "/" directly?
    Using "/" is bad practice, as it holds implementation specific information.
  - FILE_EXTENSION_SEPARATOR_CHAR
```
public static final char FILE_EXTENSION_SEPARATOR_CHAR
```
    Constant '.' as separator between file name and file extension.
    Why shouldn't I use '.' directly?
    Using '.' is bad practice, as it holds implementation specific information.
  - FILE_EXTENSION_SEPARATOR
```
public static final String FILE_EXTENSION_SEPARATOR
```
    Constant "." as separator between file name and file extension, represented as a string for convenience. This string contains a single character, namely FILE_EXTENSION_SEPARATOR_CHAR.
    Why shouldn't I use "." directly?
    Using "." is bad practice, as it holds implementation specific information.
  - JAVA_VERSION
```
public static final String JAVA_VERSION
```
    Java Runtime Environment version
  - JAVA_VENDOR
```
public static final String JAVA_VENDOR
```
    Java Runtime Environment vendor
  - JAVA_VENDOR_URL
```
public static final String JAVA_VENDOR_URL
```
    Java vendor URL
  - JAVA_HOME
```
public static final String JAVA_HOME
```
    Java installation directory
  - JAVA_VM_SPECIFICATION_VERSION
```
public static final String JAVA_VM_SPECIFICATION_VERSION
```
    Java Virtual Machine specification version
  - JAVA_VM_SPECIFICATION_VENDOR
```
public static final String JAVA_VM_SPECIFICATION_VENDOR
```
    Java Virtual Machine specification vendor
  - JAVA_VM_SPECIFICATION_NAME
```
public static final String JAVA_VM_SPECIFICATION_NAME
```
    Java Virtual Machine specification name
  - JAVA_VM_VERSION
```
public static final String JAVA_VM_VERSION
```
    Java Virtual Machine implementation version
  - JAVA_VM_VENDOR
```
public static final String JAVA_VM_VENDOR
```
    Java Virtual Machine implementation vendor
  - JAVA_VM_NAME
```
public static final String JAVA_VM_NAME
```
    Java Virtual Machine implementation name
  - JAVA_SPECIFICATION_VERSION
```
public static final String JAVA_SPECIFICATION_VERSION
```
    Java Runtime Environment specification version
  - JAVA_SPECIFICATION_VENDOR
```
public static final String JAVA_SPECIFICATION_VENDOR
```
    Java Runtime Environment specification vendor
  - JAVA_SPECIFICATION_NAME
```
public static final String JAVA_SPECIFICATION_NAME
```
    Java Runtime Environment specification name
  - JAVA_CLASS_VERSION
```
public static final String JAVA_CLASS_VERSION
```
    Java class format version number
  - JAVA_CLASS_PATH
```
public static final String JAVA_CLASS_PATH
```
    Java class path
  - JAVA_LIBRARY_PATH
```
public static final String JAVA_LIBRARY_PATH
```
    List of paths to search when loading libraries
  - JAVA_IO_TMPDIR
```
public static final String JAVA_IO_TMPDIR
```
    Default temporary file path
    Better not rely on this in case Files.createTempDirectory(Path, String, java.nio.file.attribute.FileAttribute...) or Files.createTempFile(Path, String, String, java.nio.file.attribute.FileAttribute...) are appropriate alternatives.
  - JAVA_COMPILER
```
public static final String JAVA_COMPILER
```
    Name of JIT compiler to use
  - JAVA_EXT_DIRS
```
@Deprecated
public static final String JAVA_EXT_DIRS
```
    Deprecated. This property, and the mechanism which implements it, may be removed in a future release.
    
    Path of extension directory or directories
  - OS_NAME
```
public static final String OS_NAME
```
    Operating system name
  - OS_ARCH
```
public static final String OS_ARCH
```
    Operating system architecture
  - OS_VERSION
```
public static final String OS_VERSION
```
    Operating system version
  - USER_NAME
```
public static final String USER_NAME
```
    User's account name
    Better not rely on this in case getUserName() is an appropriate alternative.
  - USER_HOME
```
public static final String USER_HOME
```
    User's home directory
    Better not rely on this in case getUserHome() is an appropriate alternative.
  - USER_DIR
```
public static final String USER_DIR
```
    User's current working directory
- Method Detail
  - getJavaExecutable
```
public static Path getJavaExecutable()
```
    Determines the system specific path to the current JVMs binary executable.
    
    Returns:
    
    path to JVM executable
  - getUserName
```
public static String getUserName()
```
    User's account name
    
    Returns:
    
    users's account name
  - getUserHome
```
public static Path getUserHome()
```
    User's home directory
    
    Returns:
    
    users's home directory
  - isWindows
```
public static boolean isWindows()
```
    Validates the system property os.name and returns true on Windows OS.
    Usage of feature detection is highly preferred. Use with caution!
    
    Returns:
    
    true when running on Windows, otherwise false

Class SystemUtils

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_FILE_NAME_SEPARATOR_CHAR

DEFAULT_FILE_NAME_SEPARATOR

FILE_EXTENSION_SEPARATOR_CHAR

FILE_EXTENSION_SEPARATOR

JAVA_VERSION

JAVA_VENDOR

JAVA_VENDOR_URL

JAVA_HOME

JAVA_VM_SPECIFICATION_VERSION

JAVA_VM_SPECIFICATION_VENDOR

JAVA_VM_SPECIFICATION_NAME

JAVA_VM_VERSION

JAVA_VM_VENDOR

JAVA_VM_NAME

JAVA_SPECIFICATION_VERSION

JAVA_SPECIFICATION_VENDOR

JAVA_SPECIFICATION_NAME

JAVA_CLASS_VERSION

JAVA_CLASS_PATH

JAVA_LIBRARY_PATH

JAVA_IO_TMPDIR

JAVA_COMPILER

JAVA_EXT_DIRS

OS_NAME

OS_ARCH

OS_VERSION

USER_NAME

USER_HOME

USER_DIR

Method Detail

getJavaExecutable

getUserName

getUserHome

isWindows