publicstaticvoidmain(Stringargs[]){ExcepTestexcepTest=newExcepTest();excepTest.getName();}privateStringgetName()throwsNoSuchMethodException{thrownewNoSuchMethodException();}} Output Exception in thread "main" java.lang.Error: Unresolved compilation problem: Unhandled exception type NoSuchMethodException ...
@Test(expected = UnsupportedOperationException.class)publicvoidgivenUsingGuavaBuilder_whenUnmodifiableListIsCreated_thenNoLongerModifiable(){ List<String> list =newArrayList<>(Arrays.asList("one","two","three")); ImmutableList<String> unmodifiableList = ImmutableList.<String>builder().addAll(list).build...
其实Jar 在文件格式上是支持索引技术的,称为 JarIndex,通过jar -i就可以在META-INF/目录下生成INDEX.LIST文件。别高兴的太早,这个 JarIndex 目前无法真正起到作用,有下面几个原因: INDEX.LIST 文件生成不正确,尤其是目前最流行的 fatjar 中包含 jar 列表的情况 classloader 不支持(那不是白忙活吗) 首先来看 ...
lang.IllegalArgumentException: Unsupported class file major version 60at .yushi.authlibinjector.internal.org.objectweb.asm.ClassReader.<init>(ClassReader.java:196)at .yushi.authlibinjector.internal.org.objectweb.asm.ClassReader.<init>(ClassReader.java:177)at .yushi.authlibinjector.internal.org....
org.apache.spark.SparkException: Exception thrown in awaitResult at org.apache.spark.rpc.RpcTimeout$$anonfun$1.applyOrElse(RpcTimeout.scala:77) ~[spark-core_2.11-2.0.1.jar:2.0.1] at org.apache.spark.rpc.RpcTimeout$$anonfun$1.applyOrElse(RpcTimeout.scala:75) ~[spark-core_2.11-2.0.1....
import java.util.Map;publicclassHelloFreeMarker {publicstaticvoidmain(String[] args) throws Exception{//1.创建配置类Configuration configuration =newConfiguration(Configuration.getVersion());//2.设置模板所在的目录configuration.setDirectoryForTemplateLoading(newFile("/Users/zhenghan/Projects/FreeMarker_test/src...
public class 空指针Optional { public static void main(String[] args) { //使用of方法,仍然会报空指针异常 // Optional optional = Optional.of(null); // System.out.println(optional.get()); //抛出没有该元素的异常 //Exception in thread "main" java.util.NoSuchElementException: No value present...
If any of the elements in the list is 0, then we get an ArithmeticException: / by zero. Let’s fix that by using a traditional try-catch block such that we log any such exception and continue execution for next elements: List<Integer> integers = Arrays.asList(3, 9, 7, 0, 10, ...
1 查看JAR包内的类 另一个思路: 解压JAR包jar -xf <jarPath> 1-1 单JAR包 -t list table of contents for archive(列出存档内容表) -f specify archive file name (指定存档文件名) [root
As of Java Servlet API 2.1 with no replacement. This method must return an emptyEnumerationand will be removed in a future version of this API. javax.resource.ResourceException.getLinkedException() J2SE release 1.4 supports a chained exception facility that allows any throwable to know about anoth...