Unserstanding the Java Software Development Kit

BIRT iHub requires a 64-bit version of the JAVA SE Development Kit (JDK) 1.6 or higher. The BIRT iHub installation process installs a Java Software Development Kit (JDK) if it does not detect one already installed in the environment. The iHub installation routine installs the JDK files in:

\Actuate\iHub3\modules\JDK

To use a different JDK with iHub, change the files in the installation directory or change the values of the following environment variables:

AC_JAVA_HOME

AC_JVM_HOME

AC_JRE_HOME

AC_JRE64_HOME

Using an earlier JDK release can cause some BIRT iHub features to fail or to work incorrectly. For example, using an earlier release of JDK can cause Actuate products to display charts incorrectly.

The following types of Actuate executable files use AC_JRE_HOME and AC_JVM_HOME:

Files containing charts use AC_JVM_HOME to locate the java.exe to generate the chart.

Files using the Actuate Java Object Interface use AC_JVM_HOME to locate the JVM DLL or library.