java.lang.Object
- spock.util.environment.Jvm

```
public class Jvm
extends Object
```
Provides information on the current JVM, such as its Java version.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static Jvm`	`getCurrent()`	Returns the current JVM.
`String`	`getJavaSpecificationVersion()`	The Java specification version, as returned by the `java.specification.version` system property.
`String`	`getJavaVersion()`	The Java version, as returned by the `java.version` system property.
`boolean`	`isJava10()`	Tells whether the Java version is 10.
`boolean`	`isJava10Compatible()`	Tells whether the Java version is compatible with Java 10.
`boolean`	`isJava11()`	Tells whether the Java version is 11.
`boolean`	`isJava11Compatible()`	Tells whether the Java version is compatible with Java 11.
`boolean`	`isJava12()`	Tells whether the Java version is 12.
`boolean`	`isJava12Compatible()`	Tells whether the Java version is compatible with Java 12.
`boolean`	`isJava13()`	Tells whether the Java version is 13.
`boolean`	`isJava13Compatible()`	Tells whether the Java version is compatible with Java 13.
`boolean`	`isJava14()`	Tells whether the Java version is 14.
`boolean`	`isJava14Compatible()`	Tells whether the Java version is compatible with Java 14.
`boolean`	`isJava15()`	Tells whether the Java version is 15.
`boolean`	`isJava15Compatible()`	Tells whether the Java version is compatible with Java 15.
`boolean`	`isJava16()`	Tells whether the Java version is 16.
`boolean`	`isJava16Compatible()`	Tells whether the Java version is compatible with Java 16.
`boolean`	`isJava17()`	Tells whether the Java version is 17.
`boolean`	`isJava17Compatible()`	Tells whether the Java version is compatible with Java 17.
`boolean`	`isJava18()`	Tells whether the Java version is 18.
`boolean`	`isJava18Compatible()`	Tells whether the Java version is compatible with Java 18.
`boolean`	`isJava19()`	Tells whether the Java version is 19.
`boolean`	`isJava19Compatible()`	Tells whether the Java version is compatible with Java 19.
`boolean`	`isJava20()`	Tells whether the Java version is 20.
`boolean`	`isJava20Compatible()`	Tells whether the Java version is compatible with Java 20.
`boolean`	`isJava21()`	Tells whether the Java version is 21.
`boolean`	`isJava21Compatible()`	Tells whether the Java version is compatible with Java 21.
`boolean`	`isJava22()`	Tells whether the Java version is 22.
`boolean`	`isJava22Compatible()`	Tells whether the Java version is compatible with Java 22.
`boolean`	`isJava23()`	Tells whether the Java version is 23.
`boolean`	`isJava23Compatible()`	Tells whether the Java version is compatible with Java 23.
`boolean`	`isJava8()`	Tells whether the Java version is 8.
`boolean`	`isJava8Compatible()`	Tells whether the Java version is compatible with Java 8.
`boolean`	`isJava9()`	Tells whether the Java version is 9.
`boolean`	`isJava9Compatible()`	Tells whether the Java version is compatible with Java 9.
`boolean`	`isJavaVersion(int majorJavaVersion)`	Tells whether the Java version is equal to the given major Java version.
`boolean`	`isJavaVersionCompatible(int majorJavaVersion)`	Tells whether the Java version is compatible with the given major Java version.

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

- Method Detail
  - getJavaVersion
```
public String getJavaVersion()
```
    The Java version, as returned by the java.version system property. Examples for valid values (for Oracle/OpenJDK) are "1.6.0_22" and "1.7.0_07".
    
    Returns:
    
    the Java version, as returned by the java.version system property
  - getJavaSpecificationVersion
```
public String getJavaSpecificationVersion()
```
    The Java specification version, as returned by the java.specification.version system property. Examples for valid values are "1.6" and "1.7".
    
    Returns:
    
    the Java specification version, as returned by the java.specification.version system property
  - isJava8
```
public boolean isJava8()
```
    Tells whether the Java version is 8.
    
    Returns:
    
    whether the Java version is 8
  - isJava9
```
public boolean isJava9()
```
    Tells whether the Java version is 9.
    
    Returns:
    
    whether the Java version is 9
  - isJava10
```
public boolean isJava10()
```
    Tells whether the Java version is 10.
    
    Returns:
    
    whether the Java version is 10
    
    Since:
    
    1.2
  - isJava11
```
public boolean isJava11()
```
    Tells whether the Java version is 11.
    
    Returns:
    
    whether the Java version is 11
    
    Since:
    
    1.2
  - isJava12
```
public boolean isJava12()
```
    Tells whether the Java version is 12.
    
    Returns:
    
    whether the Java version is 12
    
    Since:
    
    2.0
  - isJava13
```
public boolean isJava13()
```
    Tells whether the Java version is 13.
    
    Returns:
    
    whether the Java version is 13
    
    Since:
    
    2.0
  - isJava14
```
public boolean isJava14()
```
    Tells whether the Java version is 14.
    
    Returns:
    
    whether the Java version is 14
    
    Since:
    
    2.0
  - isJava15
```
public boolean isJava15()
```
    Tells whether the Java version is 15.
    
    Returns:
    
    whether the Java version is 15
    
    Since:
    
    2.0
  - isJava16
```
public boolean isJava16()
```
    Tells whether the Java version is 16.
    
    Returns:
    
    whether the Java version is 16
    
    Since:
    
    2.0
  - isJava17
```
public boolean isJava17()
```
    Tells whether the Java version is 17.
    
    Returns:
    
    whether the Java version is 17
    
    Since:
    
    2.0
  - isJava18
```
public boolean isJava18()
```
    Tells whether the Java version is 18.
    
    Returns:
    
    whether the Java version is 18
    
    Since:
    
    2.0
  - isJava19
```
public boolean isJava19()
```
    Tells whether the Java version is 19.
    
    Returns:
    
    whether the Java version is 19
    
    Since:
    
    2.0
  - isJava20
```
public boolean isJava20()
```
    Tells whether the Java version is 20.
    
    Returns:
    
    whether the Java version is 20
    
    Since:
    
    2.0
  - isJava21
```
public boolean isJava21()
```
    Tells whether the Java version is 21.
    
    Returns:
    
    whether the Java version is 21
    
    Since:
    
    2.0
  - isJava22
```
public boolean isJava22()
```
    Tells whether the Java version is 22.
    
    Returns:
    
    whether the Java version is 22
    
    Since:
    
    2.0
  - isJava23
```
public boolean isJava23()
```
    Tells whether the Java version is 23.
    
    Returns:
    
    whether the Java version is 23
    
    Since:
    
    2.0
  - isJavaVersion
```
public boolean isJavaVersion(int majorJavaVersion)
```
    Tells whether the Java version is equal to the given major Java version.
    
    Parameters:
    
    majorJavaVersion - major java version (e.g. 8, 12, 17) to check the Java version is equal to
    
    Returns:
    
    whether the Java version is equal to the given major Java version
    
    Since:
    
    2.0
  - isJava8Compatible
```
public boolean isJava8Compatible()
```
    Tells whether the Java version is compatible with Java 8.
    
    Returns:
    
    whether the Java version is compatible with Java 8
  - isJava9Compatible
```
public boolean isJava9Compatible()
```
    Tells whether the Java version is compatible with Java 9.
    
    Returns:
    
    whether the Java version is compatible with Java 9
  - isJava10Compatible
```
public boolean isJava10Compatible()
```
    Tells whether the Java version is compatible with Java 10.
    
    Returns:
    
    whether the Java version is compatible with Java 10
    
    Since:
    
    1.2
  - isJava11Compatible
```
public boolean isJava11Compatible()
```
    Tells whether the Java version is compatible with Java 11.
    
    Returns:
    
    whether the Java version is compatible with Java 11
    
    Since:
    
    1.2
  - isJava12Compatible
```
public boolean isJava12Compatible()
```
    Tells whether the Java version is compatible with Java 12.
    
    Returns:
    
    whether the Java version is compatible with Java 12
    
    Since:
    
    2.0
  - isJava13Compatible
```
public boolean isJava13Compatible()
```
    Tells whether the Java version is compatible with Java 13.
    
    Returns:
    
    whether the Java version is compatible with Java 13
    
    Since:
    
    2.0
  - isJava14Compatible
```
public boolean isJava14Compatible()
```
    Tells whether the Java version is compatible with Java 14.
    
    Returns:
    
    whether the Java version is compatible with Java 14
    
    Since:
    
    2.0
  - isJava15Compatible
```
public boolean isJava15Compatible()
```
    Tells whether the Java version is compatible with Java 15.
    
    Returns:
    
    whether the Java version is compatible with Java 15
    
    Since:
    
    2.0
  - isJava16Compatible
```
public boolean isJava16Compatible()
```
    Tells whether the Java version is compatible with Java 16.
    
    Returns:
    
    whether the Java version is compatible with Java 16
    
    Since:
    
    2.0
  - isJava17Compatible
```
public boolean isJava17Compatible()
```
    Tells whether the Java version is compatible with Java 17.
    
    Returns:
    
    whether the Java version is compatible with Java 17
    
    Since:
    
    2.0
  - isJava18Compatible
```
public boolean isJava18Compatible()
```
    Tells whether the Java version is compatible with Java 18.
    
    Returns:
    
    whether the Java version is compatible with Java 18
    
    Since:
    
    2.0
  - isJava19Compatible
```
public boolean isJava19Compatible()
```
    Tells whether the Java version is compatible with Java 19.
    
    Returns:
    
    whether the Java version is compatible with Java 19
    
    Since:
    
    2.0
  - isJava20Compatible
```
public boolean isJava20Compatible()
```
    Tells whether the Java version is compatible with Java 20.
    
    Returns:
    
    whether the Java version is compatible with Java 20
    
    Since:
    
    2.0
  - isJava21Compatible
```
public boolean isJava21Compatible()
```
    Tells whether the Java version is compatible with Java 21.
    
    Returns:
    
    whether the Java version is compatible with Java 21
    
    Since:
    
    2.0
  - isJava22Compatible
```
public boolean isJava22Compatible()
```
    Tells whether the Java version is compatible with Java 22.
    
    Returns:
    
    whether the Java version is compatible with Java 22
    
    Since:
    
    2.0
  - isJava23Compatible
```
public boolean isJava23Compatible()
```
    Tells whether the Java version is compatible with Java 23.
    
    Returns:
    
    whether the Java version is compatible with Java 23
    
    Since:
    
    2.0
  - isJavaVersionCompatible
```
public boolean isJavaVersionCompatible(int majorJavaVersion)
```
    Tells whether the Java version is compatible with the given major Java version.
    
    Parameters:
    
    majorJavaVersion - major java version (e.g. 8, 12, 17) to check the Java version compatibility with
    
    Returns:
    
    whether the Java version is compatible with the given major Java version
    
    Since:
    
    2.0
  - getCurrent
```
public static Jvm getCurrent()
```
    Returns the current JVM.
    
    Returns:
    
    the current JVM

Class Jvm

Method Summary

Methods inherited from class java.lang.Object

Method Detail

getJavaVersion

getJavaSpecificationVersion

isJava8

isJava9

isJava10

isJava11

isJava12

isJava13

isJava14

isJava15

isJava16

isJava17

isJava18

isJava19

isJava20

isJava21

isJava22

isJava23

isJavaVersion

isJava8Compatible

isJava9Compatible

isJava10Compatible

isJava11Compatible

isJava12Compatible

isJava13Compatible

isJava14Compatible

isJava15Compatible

isJava16Compatible

isJava17Compatible

isJava18Compatible

isJava19Compatible

isJava20Compatible

isJava21Compatible

isJava22Compatible

isJava23Compatible

isJavaVersionCompatible

getCurrent