idea项目没办法编译了

Question

Information:java: 编译器 (1.7.0_79) 中出现异常错误。 如果在 Bug Parade 中没有找到该错误, 请在 Java Developer Connection (http://java.sun.com/webapps/bugreport) 中建立 Bug。请在报告中附上您的程序和以下诊断信息。谢谢。
Information:java: java.lang.NullPointerException
Information:java:     at com.sun.tools.javac.comp.Enter.complete(Enter.java:500)
Information:java:     at com.sun.tools.javac.comp.Enter.main(Enter.java:469)
Information:java:     at com.sun.tools.javac.main.JavaCompiler.enterTrees(JavaCompiler.java:929)
Information:java:     at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:824)
Information:java:     at com.sun.tools.javac.main.Main.compile(Main.java:439)
Information:java:     at com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:132)
Information:java:     at org.jetbrains.jps.javac.JavacMain.compile(JavacMain.java:206)
Information:java:     at org.jetbrains.jps.javac.ExternalJavacProcess.compile(ExternalJavacProcess.java:190)
Information:java:     at org.jetbrains.jps.javac.ExternalJavacProcess.access$300(ExternalJavacProcess.java:32)
Information:java:     at org.jetbrains.jps.javac.ExternalJavacProcess$CompilationRequestsHandler$1.run(ExternalJavacProcess.java:255)
Information:java:     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
Information:java:     at java.util.concurrent.FutureTask.run(FutureTask.java:262)
Information:java:     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
Information:java:     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
Information:java:     at java.lang.Thread.run(Thread.java:745)
Information:java: Errors occurred while compiling module 'pdmis'
Information:javac 7 was used to compile java sources
Information:2021/2/26 10:31 - Build completed with 1 error and 0 warnings in 16 s 402 ms

Answer 1

提示很明显了，NullPointerException，空指针异常，需要检查一下代码。