equal
deleted
inserted
replaced
1 '\" t |
1 '\" t |
2 .\" Copyright (c) 1994, 2015, Oracle and/or its affiliates. All rights reserved. |
2 .\" Copyright (c) 1994, 2018, Oracle and/or its affiliates. All rights reserved. |
3 .\" DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 .\" DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 .\" |
4 .\" |
5 .\" This code is free software; you can redistribute it and/or modify it |
5 .\" This code is free software; you can redistribute it and/or modify it |
6 .\" under the terms of the GNU General Public License version 2 only, as |
6 .\" under the terms of the GNU General Public License version 2 only, as |
7 .\" published by the Free Software Foundation. |
7 .\" published by the Free Software Foundation. |
1171 .RE |
1171 .RE |
1172 .SS "Advanced Runtime Options" |
1172 .SS "Advanced Runtime Options" |
1173 .PP |
1173 .PP |
1174 These options control the runtime behavior of the Java HotSpot VM\&. |
1174 These options control the runtime behavior of the Java HotSpot VM\&. |
1175 .PP |
1175 .PP |
1176 \-XX:+CheckEndorsedAndExtDirs |
|
1177 .RS 4 |
|
1178 Enables the option to prevent the |
|
1179 \fBjava\fR |
|
1180 command from running a Java application if it uses the endorsed\-standards override mechanism or the extension mechanism\&. This option checks if an application is using one of these mechanisms by checking the following: |
|
1181 .sp |
|
1182 .RS 4 |
|
1183 .ie n \{\ |
|
1184 \h'-04'\(bu\h'+03'\c |
|
1185 .\} |
|
1186 .el \{\ |
|
1187 .sp -1 |
|
1188 .IP \(bu 2.3 |
|
1189 .\} |
|
1190 The |
|
1191 \fBjava\&.ext\&.dirs\fR |
|
1192 or |
|
1193 \fBjava\&.endorsed\&.dirs\fR |
|
1194 system property is set\&. |
|
1195 .RE |
|
1196 .sp |
|
1197 .RS 4 |
|
1198 .ie n \{\ |
|
1199 \h'-04'\(bu\h'+03'\c |
|
1200 .\} |
|
1201 .el \{\ |
|
1202 .sp -1 |
|
1203 .IP \(bu 2.3 |
|
1204 .\} |
|
1205 The |
|
1206 \fBlib/endorsed\fR |
|
1207 directory exists and is not empty\&. |
|
1208 .RE |
|
1209 .sp |
|
1210 .RS 4 |
|
1211 .ie n \{\ |
|
1212 \h'-04'\(bu\h'+03'\c |
|
1213 .\} |
|
1214 .el \{\ |
|
1215 .sp -1 |
|
1216 .IP \(bu 2.3 |
|
1217 .\} |
|
1218 The |
|
1219 \fBlib/ext\fR |
|
1220 directory contains any JAR files other than those of the JDK\&. |
|
1221 .RE |
|
1222 .sp |
|
1223 .RS 4 |
|
1224 .ie n \{\ |
|
1225 \h'-04'\(bu\h'+03'\c |
|
1226 .\} |
|
1227 .el \{\ |
|
1228 .sp -1 |
|
1229 .IP \(bu 2.3 |
|
1230 .\} |
|
1231 The system\-wide platform\-specific extension directory contains any JAR files\&. |
|
1232 .RE |
|
1233 .RE |
|
1234 .PP |
|
1235 \-XX:+DisableAttachMechanism |
1176 \-XX:+DisableAttachMechanism |
1236 .RS 4 |
1177 .RS 4 |
1237 Enables the option that disables the mechanism that lets tools attach to the JVM\&. By default, this option is disabled, meaning that the attach mechanism is enabled and you can use tools such as |
1178 Enables the option that disables the mechanism that lets tools attach to the JVM\&. By default, this option is disabled, meaning that the attach mechanism is enabled and you can use tools such as |
1238 \fBjcmd\fR, |
1179 \fBjcmd\fR, |
1239 \fBjstack\fR, |
1180 \fBjstack\fR, |