Summary

Add constructor which can be specified both the exception message and caused Throwable into com.sun.tools.attach.AttachNotSupportedException.

Problem

JDK-8373867 improves the logic to find tmp directory used for attach mechanism. It needs to fallback to find /tmp on the system even if the exception is thrown when Attach API attempt to access /proc/<PID>/root due to lack of permission. If fallback code failed with exception (e.g. lack of permission), it should be reported with root cause.

For such situation, Exception has a constructor with exception message and the cause, but it is not implemented in AttachNotSupportedException.

Solution

Add new constructor to com.sun.tools.attach.AttachNotSupportedException to specify root cause.

Specification

    /**
     * Constructs an <code>AttachNotSupportedException</code> with
     * the specified cause.
     *
     * @param   message the detail message.
     * @param   cause   the cause of this exception.
     */
    public AttachNotSupportedException(String message, Throwable cause)