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| （未显示同一用户的6个中间版本） |
| 第16行： |
第16行： |
| | | | |
| | === 调试跟踪 === | | === 调试跟踪 === |
| − | {| class="wikitable"
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| − | | colspan="2" |class JULTest<syntaxhighlight lang="java">
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| − | Logger logger = Logger.getLogger("io.github.jihch");
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| − | </syntaxhighlight>
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| − | |-
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| − | | colspan="2" |class java.util.logging.Logger<syntaxhighlight lang="java">
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| − | @CallerSensitive
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| − | public static Logger getLogger(String name) {
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| − | return demandLogger(name, null, Reflection.getCallerClass());
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| − | }
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| − | </syntaxhighlight>
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| − | |-
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| − | | colspan="2" |class java.util.logging.Logger<syntaxhighlight lang="java">
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| − | private static Logger demandLogger(String name, String resourceBundleName, Class<?> caller) {
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| − | LogManager manager = LogManager.getLogManager();
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| − | SecurityManager sm = System.getSecurityManager();
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| − | if (sm != null && !SystemLoggerHelper.disableCallerCheck) {
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| − | if (caller.getClassLoader() == null) {
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| − | return manager.demandSystemLogger(name, resourceBundleName);
| |
| − | }
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| − | }
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| − | return manager.demandLogger(name, resourceBundleName, caller);
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| − | }
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| − | </syntaxhighlight>
| |
| − | |-
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| − | |class java.util.logging.LogManager<syntaxhighlight lang="java">
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| − | public static LogManager getLogManager() {
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| − | if (manager != null) {
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| − | manager.ensureLogManagerInitialized();
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| − | }
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| − | return manager;
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| − | }
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| − | </syntaxhighlight>
| |
| − | |class java.util.logging.LogManager
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| − | |-
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| − | |class java.util.logging.LogManager<syntaxhighlight lang="java">
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| − | final void ensureLogManagerInitialized() {
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| − | final LogManager owner = this;
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| − | if (initializationDone || owner != manager) {
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| − | return;
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| − | }
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| − | synchronized(this) {
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| − | final boolean isRecursiveInitialization = (initializedCalled == true);
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| − |
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| − | assert initializedCalled || !initializationDone
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| − | : "Initialization can't be done if initialized has not been called!";
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| − |
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| − | if (isRecursiveInitialization || initializationDone) {
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| − | return;
| |
| − | }
| |
| − | initializedCalled = true;
| |
| − | try {
| |
| − | AccessController.doPrivileged(new PrivilegedAction<Object>() {
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| − | @Override
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| − | public Object run() {
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| − | assert rootLogger == null;
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| − | assert initializedCalled && !initializationDone;
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| − |
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| − | // Read configuration.
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| − | owner.readPrimordialConfiguration();
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| − |
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| − | // Create and retain Logger for the root of the namespace.
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| − | owner.rootLogger = owner.new RootLogger();
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| − | owner.addLogger(owner.rootLogger);
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| − | if (!owner.rootLogger.isLevelInitialized()) {
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| − | owner.rootLogger.setLevel(defaultLevel);
| |
| − | }
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| − |
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| − | @SuppressWarnings("deprecation")
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| − | final Logger global = Logger.global;
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| − | owner.addLogger(global);
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| − | return null;
| |
| − | }
| |
| − | });
| |
| − | } finally {
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| − | initializationDone = true;
| |
| − | }
| |
| − | }
| |
| − | }
| |
| − | </syntaxhighlight>
| |
| − | !manager.demandLogger(name, resourceBundleName, caller);
| |
| − | |-
| |
| − | |
| |
| − | !
| |
| − | |-
| |
| − | |
| |
| − | !
| |
| − | |-
| |
| − | |
| |
| − | !
| |
| − | |}
| |
