Package com.atlassian.bamboo.utils

Class JavaVirtualMachineDetector

java.lang.Object
com.atlassian.bamboo.utils.JavaVirtualMachineDetector
public class JavaVirtualMachineDetector extends Object
Based on comment from Vincent Massol on the forums: http://www.pols.co.uk/forums/viewtopic.php?id=26

  • Constructor Details

    • JavaVirtualMachineDetector

      public JavaVirtualMachineDetector(boolean isRunningOnOsx)

  • Method Details

    • detectJavaHome

      public String detectJavaHome(String systemJavaHome)
      Used to detects if the default JAVA_HOME is running on a JRE and not a JDK (so that the tools.jar is missing and build's cannot compile).

      The strategy is:

      • If running on OSX, return the JAVA_HOME as no need for tools.jar on the mac
      • First loot to see if we can find the tools.jar in ${java.home}/lib/tools.jar. If found then you've got your dir.
      • Otherwise look for tools.jar in ${java.home}/../lib/tools.jar. if found then you've got your dir.
      If not, return false, user has installed a JRA and not a JDK
      Parameters:
      systemJavaHome - What the system thinks the JAVA_HOME is - may be a JRE or a JVM!
      Returns:
      The JAVA_HOME adjusted to ensure we're running on JDK and not the JDK's JRE!
      Throws:
      IllegalStateException - if we are running only on a JRE as we not be able to build any builds by default!

    • containsJavac

      public boolean containsJavac(File givenDirectory)

    • detectExternalJdkVersion

      @Nullable public @Nullable String detectExternalJdkVersion(File givenDirectory)