add ci for jdk 12 and update realated docs

.travis.yml

@@ -37,7 +37,7 @@ install:
 script:
   # default oracle jdk 10, do build and test
   - switch_to_oracle_jdk10
-  - ./mvnw -V clean install --batch-mode
+  - ./mvnw -V clean install
   - ./scripts/run-agent-test.sh
   # open jdk 6
   - jdk_switcher use openjdk6
@@ -71,6 +71,10 @@ script:
   - switch_to_open_jdk11
   - ./scripts/run-junit.sh skipClean
   - ./scripts/run-agent-test.sh skipClean
+  #  open jdk 12
+  - switch_to_open_jdk12
+  - ./scripts/run-junit.sh skipClean
+  - ./scripts/run-agent-test.sh skipClean
   # codecov
   - jdk_switcher use oraclejdk8
   - ./mvnw clean -V
@@ -78,7 +82,7 @@ script:
 
 after_success:
   - codecov
-  - git status
+  - git status --ignored
 
 # Caching Dependencies and Directories
 # https://docs.travis-ci.com/user/caching/

README-EN.md

@@ -46,7 +46,7 @@
 
 👉 The missing std Java™ lib(simple & 0-dependency) for framework/middleware,
 transmitting ThreadLocal value between threads even using thread pooling components.
-Support `Java` 11/10/9/8/7/6.
+Support `Java` 12/11/10/9/8/7/6.
 
 Class [`InheritableThreadLocal`](https://docs.oracle.com/javase/10/docs/api/java/lang/InheritableThreadLocal.html) in `JDK`
 can transmit value to child thread from parent thread.

README.md

@@ -48,13 +48,13 @@
 # 🔧 功能
 
 👉 在使用线程池等会池化复用线程的组件情况下，提供`ThreadLocal`值的传递功能，解决异步执行时上下文传递的问题。
-一个`Java`标准库本应为框架/中间件设施开发提供的标配能力，本库功能聚焦 & 0依赖，支持`Java` 11/10/9/8/7/6。
+一个`Java`标准库本应为框架/中间件设施开发提供的标配能力，本库功能聚焦 & 0依赖，支持`Java` 12/11/10/9/8/7/6。
 
 `JDK`的[`InheritableThreadLocal`](https://docs.oracle.com/javase/10/docs/api/java/lang/InheritableThreadLocal.html)类可以完成父线程到子线程的值传递。但对于使用线程池等会池化复用线程的组件的情况，线程由线程池创建好，并且线程是池化起来反复使用的；这时父子线程关系的`ThreadLocal`值传递已经没有意义，应用需要的实际上是把 **任务提交给线程池时**的`ThreadLocal`值传递到 **任务执行时**。
 
 本库提供的[`TransmittableThreadLocal`](src/main/java/com/alibaba/ttl/TransmittableThreadLocal.java)类继承并加强[`InheritableThreadLocal`](https://docs.oracle.com/javase/10/docs/api/java/lang/InheritableThreadLocal.html)类，解决上述的问题，使用详见[User Guide](#-user-guide)。
 
-整个库包含`TTL`核心功能、线程池修饰及`Agent`支持（`ExecutorService`/`ForkJoinPool`），只有不到 **_800 `SLOC`代码行_**，非常精小。
+整个库包含`TTL`核心功能（核心用户`API`与框架/中间件的集成`API`）、线程池修饰（`ExecutorService`/`ForkJoinPool`/`TimerTask`）及其`Java Agent`支持，只有不到 **_1000 `SLOC`代码行_**，非常精小。
 
 欢迎 👏
 

scripts/integration-test.sh

@@ -21,7 +21,7 @@ else
 fi
 
 headInfo "test with Java 10"
-runCmd "${MVN_CMD[@]}" clean install --batch-mode
+runCmd "${MVN_CMD[@]}" clean install
 runCmd ./scripts/run-agent-test.sh
 
 # Java 6
@@ -73,3 +73,13 @@ if [ -n "$JAVA11_HOME" ]; then
 else
     headInfo "skip Java 11 test"
 fi
+
+# Java 12
+if [ -n "$JAVA12_HOME" ]; then
+    headInfo "test with Java 12"
+    export JAVA_HOME="${JAVA12_HOME}"
+    runCmd ./scripts/run-junit.sh skipClean
+    runCmd ./scripts/run-agent-test.sh skipClean
+else
+    headInfo "skip Java 12 test"
+fi

scripts/travis-prepare.sh

@@ -10,27 +10,34 @@ fi
 switch_to_open_jdk9() {
     export JAVA_HOME=$HOME/.jdk/openjdk9
     if [ ! -d "$JAVA_HOME" ]; then
-        "$install_jdk_bin" --feature 9 --license GPL --target $JAVA_HOME
+        "$install_jdk_bin" --feature 9 --license GPL --target "$JAVA_HOME"
     fi
 }
 
 switch_to_oracle_jdk10() {
     export JAVA_HOME=$HOME/.jdk/oraclejdk10
     if [ ! -d "$JAVA_HOME" ]; then
-        "$install_jdk_bin" --feature 10 --license BCL --target $JAVA_HOME
+        "$install_jdk_bin" --feature 10 --license BCL --target "$JAVA_HOME"
     fi
 }
 
 switch_to_open_jdk10() {
     export JAVA_HOME=$HOME/.jdk/openjdk10
     if [ ! -d "$JAVA_HOME" ]; then
-        "$install_jdk_bin" --feature 10 --license GPL --target $JAVA_HOME
+        "$install_jdk_bin" --feature 10 --license GPL --target "$JAVA_HOME"
     fi
 }
 
 switch_to_open_jdk11() {
     export JAVA_HOME=$HOME/.jdk/openjdk11
     if [ ! -d "$JAVA_HOME" ]; then
-        "$install_jdk_bin" --feature 11 --license GPL --target $JAVA_HOME
+        "$install_jdk_bin" --feature 11 --license GPL --target "$JAVA_HOME"
+    fi
+}
+
+switch_to_open_jdk12() {
+    export JAVA_HOME=$HOME/.jdk/openjdk12
+    if [ ! -d "$JAVA_HOME" ]; then
+        "$install_jdk_bin" --feature 12 --license GPL --target "$JAVA_HOME"
     fi
 }