com.javadocking.util
Class JvmVersionUtil

java.lang.Object
  com.javadocking.util.JvmVersionUtil

public class JvmVersionUtil
extends java.lang.Object

This class determines the version of the Java Virtual Machine.

Author:

Heidi Rakels.

Field Summary

static int	VERSION_1 The integer for java 1.1 versions of the JVM.
static int	VERSION_2 The integer for java 1.2 versions of the JVM.
static int	VERSION_3 The integer for java 1.3 versions of the JVM.
static int	VERSION_4 The integer for java 1.4 versions of the JVM.
static int	VERSION_5 The integer for java 5 versions of the JVM.
static int	VERSION_6 The integer for java 6 versions of the JVM.

Method Summary

static int

getVersion() Gets the version of the JVM.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

VERSION_1

public static final int VERSION_1

The integer for java 1.1 versions of the JVM.

See Also:

Constant Field Values

VERSION_2

public static final int VERSION_2

The integer for java 1.2 versions of the JVM.

See Also:

Constant Field Values

VERSION_3

public static final int VERSION_3

The integer for java 1.3 versions of the JVM.

See Also:

Constant Field Values

VERSION_4

public static final int VERSION_4

The integer for java 1.4 versions of the JVM.

See Also:

Constant Field Values

VERSION_5

public static final int VERSION_5

The integer for java 5 versions of the JVM.

See Also:

Constant Field Values

VERSION_6

public static final int VERSION_6

The integer for java 6 versions of the JVM.

See Also:

Constant Field Values

Method Detail

getVersion

public static int getVersion()

Gets the version of the JVM.

Returns:

The integer that corresponds with the version of the JVM. This can be VERSION_1, VERSION_2, VERSION_3, VERSION_4, VERSION_5 or VERSION_6.

Throws:

java.lang.IllegalStateException - If the system property java.vm.version does not start with VERSION_STRING_1, VERSION_STRING_2, VERSION_STRING_3, VERSION_STRING_4, VERSION_STRING_5 or VERSION_STRING_6.