It is installed in a JAR file that is visible to the definingĬlass loader of the AttachProvider type (usually, but not required.Returns a list of the installed attach providers.Īn AttachProvider is installed on the platform if: IOException - If some other I/O error occurs NullPointerException - If id is null To a Java virtual machine that does not exist, or itĬorresponds to a Java virtual machine which this AttachNotSupportedException - If the identifier cannot be parsed, or it corresponds to (" attachVirtualMachine"), or other permission Throws: SecurityException - If a security manager has been installed and it denies Returns: VirtualMachine representing the target virtual machine. Parameters: id - The abstract identifier that identifies the Java virtual machine. Java virtual machine is a version to which this provider cannot attach, thenĪn AttachNotSupportedException is thrown. The attach mechanism implemented by this provider, or it detects that the That does not exist, or it corresponds to a Java virtual machine that does not support If the provider detects that the identifier corresponds to a Java virtual machine Once parsed this method attempts to attach to the Java virtual machine. Virtual machine (in an implementation dependent manner). This method parses the identifier and maps the identifier to a Java String representation of the process identifier (or pid). Nature of this identifier is platform dependent but in many cases it will be the This methodĪttempts to load all provider implementations that are installed on theĪll of the methods in this class are safe for use by multipleĪ Java virtual machine is identified by an abstract identifier. Identify providers in environments where there are multiple providersĪttachProvider implementations are loaded and instantiated at the first Implementation that uses the Doors inter-process communication mechanism Type typically corresponds to the attach mechanism. The Oracle JDK implementation,įor example, ships with attach providers that use the package name "sun" The name is typically, but not required toīe, a name that corresponds to the VM vendor. Vendors then there will be an attach provider implementation for eachĪn attach provider is identified by its name and In general, if an environmentĬonsists of Java virtual machines of different versions and from different JDK implementation ships with provider implementations that can only attach to Provider implementation will typically only be capable of attaching toĪ specific Java virtual machine implementation or version. Machine implementation, version, or even mode of operation. Zero-argument constructor and implements the abstract methods specifiedĪn attach provider implementation is typically tied to a Java virtual Attach provider class for attaching to a Java virtual machine.Īn attach provider is a concrete subclass of this class that has a
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