GetJavaException[] returns the Java Exception object that was thrown in the most recent call from Mathematica to Java.
GetJVM[link] returns the JVM expression that corresponds to link, which was returned from InstallJava.
ImplementJavaInterface[interfaces, mappings] uses the Dynamic Proxy facility of Java to create a new Java class and return an object of that class that implements the named ...
InstallJava[] launches the Java runtime and prepares it to be used from Mathematica.
InstanceOf[javaobject, javaclass] gives True if javaobject is an instance of the class or interface javaclass, or a subclass. Otherwise, it returns False. ...
JavaBlock[expr] causes all new Java objects returned to Mathematica during the evaluation of expr to be released when expr finishes. It is an error to refer to such an object ...
JavaClass[classname, n] represents a Java class with the specified name.
JavaClassPath[] returns the class search path in use by the Java runtime. This includes classes specified via the CLASSPATH environment variable (if any), directories and ...
JavaLink[] returns the MathLink LinkObject that is used to communicate with the J/Link Java runtime.
JavaNew[classname] constructs a Java object of the specified class. JavaNew[classname, args] constructs a Java object of the specified class, passing the arguments args to ...