Package org.objenesis.strategy

Class PlatformDescription

java.lang.Object
org.objenesis.strategy.PlatformDescription
public final class PlatformDescription extends Object
List of constants describing the currently used platform.

  • Field Details

    • GNU

      public static final String GNU
      JVM_NAME prefix for GCJ
      See Also:

    • HOTSPOT

      public static final String HOTSPOT
      JVM_NAME prefix for Java HotSpot
      See Also:

    • SUN

      @Deprecated public static final String SUN
      Deprecated.
      Use HOTSPOT instead
      JVM_NAME prefix for Java HotSpot
      See Also:

    • OPENJDK

      public static final String OPENJDK
      JVM_NAME prefix for the OpenJDK
      See Also:

    • PERC

      public static final String PERC
      JVM_NAME prefix for Aonix PERC
      See Also:

    • DALVIK

      public static final String DALVIK
      JVM_NAME prefix for Dalvik/Android
      See Also:

    • SPECIFICATION_VERSION

      public static final String SPECIFICATION_VERSION
      Java specification version

    • VM_VERSION

      public static final String VM_VERSION
      JVM version

    • VM_INFO

      public static final String VM_INFO
      JVM version

    • VENDOR_VERSION

      public static final String VENDOR_VERSION
      VM vendor version

    • VENDOR

      public static final String VENDOR
      VM vendor name

    • JVM_NAME

      public static final String JVM_NAME
      JVM name

    • ANDROID_VERSION

      public static final int ANDROID_VERSION
      Android version. Will be 0 for none android platform

    • IS_ANDROID_OPENJDK

      public static final boolean IS_ANDROID_OPENJDK
      Flag telling if this version of Android is based on the OpenJDK

    • GAE_VERSION

      @Deprecated public static final String GAE_VERSION
      Deprecated.
      No need to differentiate GAE anymore since they have stopped using a security manager
      Google App Engine version or null is we are not on GAE

  • Constructor Details

    • PlatformDescription

      private PlatformDescription()

  • Method Details

    • describePlatform

      public static String describePlatform()
      Describes the platform. Outputs Java version and vendor.
      Returns:
      Description of the current platform

    • isThisJVM

      public static boolean isThisJVM(String name)
      Check if the current JVM is of the type passed in parameter. Normally, this will be a constant from this class. We basically do System.getProperty("java.vm.name").startWith(name).
      Parameters:
      name - jvm name we are looking for
      Returns:
      if it's the requested JVM

    • isAndroidOpenJDK

      public static boolean isAndroidOpenJDK()
      Check if this JVM is an Android JVM based on OpenJDK.
      Returns:
      if it's an Android version based on the OpenJDK. Will return false if this JVM isn't an Android JVM at all

    • getIsAndroidOpenJDK

      private static boolean getIsAndroidOpenJDK()

    • isAfterJigsaw

      public static boolean isAfterJigsaw()
      Tells if the current JVM is running Java 9 or above
      Returns:
      if the current JVM is Java 9 or above

    • isAfterJava11

      public static boolean isAfterJava11()
      Tells if the current JVM is running Java 11 or above
      Returns:
      if the current JVM is Java 11 or above

    • isGoogleAppEngine

      @Deprecated public static boolean isGoogleAppEngine()
      Deprecated.
      No need to differentiate GAE anymore since they have stopped using a security manager
      Tells if the platform running the JVM is Google App Engine.
      Returns:
      are we running on Google App Engine

    • getGaeRuntimeVersion

      @Deprecated private static String getGaeRuntimeVersion()
      Deprecated.
      No need to differentiate GAE anymore since they have stopped using a security manager
      Give the GAE Java version used. To know if it was before or after the restricting security manager.
      Returns:
      Java runtime version on GAE. Null if not on GEA

    • getAndroidVersion

      private static int getAndroidVersion()

    • getAndroidVersion0

      private static int getAndroidVersion0()

    • getOldAndroidVersion

      private static int getOldAndroidVersion(Class<?> versionClass)