小编mir*_*ana的帖子

我有一个modules文件夹，内容为

antlr-runtime-3.5.2.jar
antlr4-4.8-1.jar
antlr4-runtime-4.8-1.jar
byte-buddy-1.10.10.jar
classmate-1.5.1.jar
cxf-core-3.4.1.jar
dom4j-2.1.3.jar
FastInfoset-1.2.13.jar
gmbal-4.0.1.jar
ha-api-3.1.12.jar
hibernate-commons-annotations-5.1.0.Final.jar
hibernate-core-6.0.0.Alpha6.jar
icu4j-61.1.jar
istack-commons-runtime-3.0.5.jar
jakarta.activation-1.2.2.jar
jakarta.activation-api-1.2.2.jar
jakarta.annotation-api-1.3.5.jar
jakarta.jws-api-2.1.0.jar
jakarta.transaction-api-1.3.3.jar
jakarta.xml.bind-api-2.3.3.jar
jakarta.xml.soap-api-1.4.2.jar
jakarta.xml.ws-api-2.3.3.jar
jandex-2.1.3.Final.jar
javax.activation-api-1.2.0.jar
javax.json-1.0.4.jar
javax.persistence-api-2.2.jar
jaxb-impl-2.3.3.jar
jaxws-rt-2.3.3.jar
jboss-logging-3.3.2.Final.jar
jboss-rmi-api_1.0_spec-1.0.6.Final.jar
jboss-transaction-api_1.2_spec-1.1.1.Final.jar
log4j-api-2.14.0.jar
log4j-core-2.14.0.jar
log4j-slf4j-impl-2.14.0.jar
management-api-3.2.2.jar
mimepull-1.9.13.jar
org.abego.treelayout.core-1.0.3.jar
pfl-basic-4.1.0.jar
pfl-tf-4.1.0.jar
policy-2.7.10.jar
saaj-impl-1.5.2.jar
slf4j-api-1.7.25.jar
ST4-4.3.jar
stax-ex-1.7.8.jar
stax2-api-4.1.jar
streambuffer-1.5.9.jar
txw2-2.3.0.jar
woodstox-core-6.2.1.jar
xmlschema-core-2.2.5.jar

执行命令后

jlink --module-path="[path_]\target\modules" --compress=2  --add-modules=java.persistence,java.activation,spring.context,spring.beans,org.apache.cxf.core,java.xml,java.xml.bind,slf4j.api --no-header-files --no-man-pages --verbose --output="C:\Users\test\out"

我收到一条错误消息

Error: Two versions of module jakarta.activation found in [path_]\target\modules (jakarta.activation-api-1.2.2.jar and jakarta.activation-1.2.2.jar)

奇怪的是，当我删除jakarta.activation-api-1.2.2.jar或jakarta.activation-1.2.2.jar Java 然后开始抱怨 …

是否可以检查 Java 11 中数值的原始类型？

假设我有一个方法

@Test
public void test1(){
 short x = 10;
 short y = 3;
 var z = x * y // z is of int type
}

@Test
public void test1(){
 short x = 10;
 short y = 3;
 var z = (short)x * y // z is of int type as variables are promoted
}

@Test
public void test3(){
 short x = 10;
 short y = 3;
 var z = (short)x * (short)y // is z …