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[JIRA] (SLF4J-389) SimpleLogger caches System.err and System.out
by Ceki Gulcu (JIRA) 07 Jan '17

07 Jan '17

1 0

[JIRA] (SLF4J-389) SimpleLogger caches System.err and System.out
by Igor Polevoy (JIRA) 06 Jan '17

06 Jan '17

1 0

[JIRA] (SLF4J-388) Set slf4j.detectLoggerNameMismatch to true
by Ceki Gulcu (JIRA) 02 Jan '17

02 Jan '17

1 0

[JIRA] (SLF4J-387) Implement putAll and putAllClosable
by Daniel Raniz Raneland (JIRA) 02 Jan '17

02 Jan '17

1 0

[JIRA] (SLF4J-387) Implement putAll and putAllClosable
by Ceki Gulcu (JIRA) 02 Jan '17

02 Jan '17

1 0

[JIRA] (SLF4J-387) Implement putAll and putAllClosable
by Daniel Raniz Raneland (JIRA) 02 Jan '17

02 Jan '17

1 0

LoggerFactory question help
by 雪松 29 Dec '16

29 Dec '16

question 1: Can somebody tell me when loggerFactoryClassLoader will be null? static Set<URL> findPossibleStaticLoggerBinderPathSet() { // use Set instead of list in order to deal with bug #138 // LinkedHashSet appropriate here because it preserves insertion order // during iteration Set<URL> staticLoggerBinderPathSet = new LinkedHashSet<URL>(); try { ClassLoader loggerFactoryClassLoader = LoggerFactory.class.getClassLoader(); Enumeration<URL> paths; if (loggerFactoryClassLoader == null) { paths = ClassLoader.getSystemResources(STATIC_LOGGER_BINDER_PATH); } else { paths = loggerFactoryClassLoader.getResources(STATIC_LOGGER_BINDER_PATH); } while (paths.hasMoreElements()) { URL path = paths.nextElement(); staticLoggerBinderPathSet.add(path); } } catch (IOException ioe) { Util.report("Error getting resources from path", ioe); } return staticLoggerBinderPathSet; } question 2: ClassLoader.getSystemResources(STATIC_LOGGER_BINDER_PATH) and loggerFactoryClassLoader.getResources(STATIC_LOGGER_BINDER_PATH) are the same meaning in jdk. public static Enumeration<URL> getSystemResources(String name) throws IOException { ClassLoader system = getSystemClassLoader(); if (system == null) { return getBootstrapResources(name); } return system.getResources(name); } public Enumeration<URL> getResources(String name) throws IOException { Enumeration[] tmp = new Enumeration[2]; if (parent != null) { tmp[0] = parent.getResources(name); } else { tmp[0] = getBootstrapResources(name); } tmp[1] = findResources(name); return new CompoundEnumeration<>(tmp); } thank for help.

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[JIRA] (SLF4J-386) Multiple Bindings Warning in Tomcat/JavaEE
by David Vincent (JIRA) 28 Dec '16

28 Dec '16

1 0

(no subject)
by 雪松 26 Dec '16

26 Dec '16

test

1 0

Lambda support in SLF4J
by Ceki Gülcü 24 Dec '16

24 Dec '16

Hello all, Given that JDK 7 earlier are used by over 50% of Java projects, I do not think we can force users to upgrade to Java 8. Thus, SLF4J is unlikely to bump its JDK requirement to version 8 for yet some time. On the bright side, there is a way for org.slf4j.Logger to support Java8 lambdas, or just lambdas, without requiring Java 8. As stated in [1], the compiler will treat any interface meeting the definition of a functional interface as a functional interface regardless of whether or not a @FunctionalInterface annotation is present on the interface declaration. This means that we can create a Supplier interface such as public interface Supplier<T> { T get(); } and then add the following method to org.slf4j.Logger interface. package org.slf4j; public interface Logger { .... public void debug(Supplier<T> supplier); .... } This will add lambda support without requiring Java 8 support at build time. The downside of this approach is that implementations of the org.slf4j.Logger interface as found in logback and modules such as slf4j-simple, slf4j-log412, slf4j-jdk14 will need to be updated. Given that the number of such implementations is limited, I think the requirement is quite acceptable. Your comments are welcome, -- Ceki Gülcü [1] https://docs.oracle.com/javase/8/docs/api/java/lang/FunctionalInterface.html

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