8134254: JShell API/tool: REPL for Java into JDK9
Summary: Adding the implementation of the jshell (read-eval-print-loop) tool.
Reviewed-by: briangoetz, mcimadamore, psandoz, forax
Contributed-by: robert.field@oracle.com, bitterfoxc@gmail.com, jan.lahoda@oracle.com
/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package jdk.jshell;
/**
* Wraps an exception thrown in the remotely executing client.
* An instance of <code>EvalException</code> can be returned in the
* {@link jdk.jshell.SnippetEvent#exception()} query.
* The name of the exception thrown is available from
* {@link jdk.jshell.EvalException#getExceptionClassName()}.
* Message and stack can be queried by methods on <code>Exception</code>.
* <p>
* Note that in stack trace frames representing JShell Snippets,
* <code>StackTraceElement.getFileName()</code> will return "#" followed by
* the Snippet id and for snippets without a method name (for example an
* expression) <code>StackTraceElement.getMethodName()</code> will be the
* empty string.
*/
@SuppressWarnings("serial") // serialVersionUID intentionally omitted
public class EvalException extends Exception {
private final String exceptionClass;
EvalException(String message, String exceptionClass, StackTraceElement[] stackElements) {
super(message);
this.exceptionClass = exceptionClass;
this.setStackTrace(stackElements);
}
/**
* Returns the name of the Throwable subclass which was thrown in the
* executing client. Note this class may not be loaded in the controlling
* process.
* See
* {@link java.lang.Class#getName() Class.getName()} for the format of the string.
* @return the name of the exception class as a String
*/
public String getExceptionClassName() {
return exceptionClass;
}
}