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java.lang.Object org.springframework.core.JdkVersion
public abstract class JdkVersion
Internal helper class used to find the Java/JDK version that Spring is operating on, to allow for automatically adapting to the present platform's capabilities.
Note that Spring does not support 1.2 or earlier JVMs.
Field Summary | |
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static int |
JAVA_13
Constant identifying the 1.3.x JVM (JDK 1.3). |
static int |
JAVA_14
Constant identifying the 1.4.x JVM (J2SE 1.4). |
static int |
JAVA_15
Constant identifying the 1.5 JVM (Java 5). |
static int |
JAVA_16
Constant identifying the 1.6 JVM (Java 6). |
static int |
JAVA_17
Constant identifying the 1.7 JVM. |
Constructor Summary | |
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JdkVersion()
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Method Summary | |
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static String |
getJavaVersion()
Return the full Java version string, as returned by System.getProperty("java.version") . |
static int |
getMajorJavaVersion()
Get the major version code. |
static boolean |
isAtLeastJava14()
Convenience method to determine if the current JVM is at least Java 1.4. |
static boolean |
isAtLeastJava15()
Convenience method to determine if the current JVM is at least Java 1.5 (Java 5). |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final int JAVA_13
public static final int JAVA_14
public static final int JAVA_15
public static final int JAVA_16
public static final int JAVA_17
Constructor Detail |
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public JdkVersion()
Method Detail |
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public static String getJavaVersion()
System.getProperty("java.version")
.
System.getProperty(String)
public static int getMajorJavaVersion()
if (getMajorJavaVersion() < JAVA_14)
.
public static boolean isAtLeastJava14()
true
if the current JVM is at least Java 1.4getMajorJavaVersion()
,
JAVA_14
,
JAVA_15
,
JAVA_16
,
JAVA_17
public static boolean isAtLeastJava15()
true
if the current JVM is at least Java 1.5getMajorJavaVersion()
,
JAVA_15
,
JAVA_16
,
JAVA_17
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