IDEA 内存不足问题解决
一、正常的 IDEA build 日志
Executing pre-compile tasks...
Loading Ant configuration...
Running Ant tasks...
Running 'before' tasks
Checking sources
Copying resources... [user]
Parsing java… [user]
java: JPS incremental annotation processing is disabled. Compilation results on partial recompilation may be inaccurate. Use build process "jps.track.ap.dependencies" VM flag to enable/disable incremental annotation processing environment.
Writing classes… [user]
Checking dependencies… [user]
Dependency analysis found 0 affected files
Updating dependency information… [user]
Adding @NotNull assertions… [user]
Adding pattern assertions… [user]
Adding the Threading Model assertions… [user]
Running 'after' tasks
javac 1.8.0_333 was used to compile java sources
Finished, saving caches…
Executing post-compile tasks...
Loading Ant configuration...
Running Ant tasks...
Synchronizing output directories...
2022/10/13, 10:04 AM - Build completed successfully with 2 warnings in 5 sec, 563 ms二、编译工具内存不足日志 （内存从小变大）
1. 无法启动
2. Ant 任务执行报错
Executing pre-compile tasks...
Loading Ant configuration...
Running Ant tasks...
Internal error (java.lang.NullPointerException): null
java.lang.NullPointerException
at com.intellij.util.containers.hash.LinkedHashMap$Entry.access$200(LinkedHashMap.java:283)
at com.intellij.util.containers.hash.LinkedHashMap.doRemoveEldestEntry(LinkedHashMap.java:137)
at com.intellij.util.io.FilePageCache.ensureSize(FilePageCache.java:218)
at com.intellij.util.io.FilePageCache.get(FilePageCache.java:186)
at com.intellij.util.io.PagedFileStorage.getBufferWrapper(PagedFileStorage.java:370)
at com.intellij.util.io.PagedFileStorage.getBuffer(PagedFileStorage.java:345)
at com.intellij.util.io.PagedFileStorage.put(PagedFileStorage.java:246)
at com.intellij.util.io.PagedFileStorage.fillWithZeros(PagedFileStorage.java:321)
at com.intellij.util.io.PagedFileStorage.resize(PagedFileStorage.java:295)
at com.intellij.util.io.ResizeableMappedFile.expand(ResizeableMappedFile.java:120)
at com.intellij.util.io.ResizeableMappedFile.ensureSize(ResizeableMappedFile.java:89)
at com.intellij.util.io.ResizeableMappedFile.putInt(ResizeableMappedFile.java:210)
at com.intellij.util.io.PersistentEnumeratorBase.markDirty(PersistentEnumeratorBase.java:576)
at com.intellij.util.io.PersistentEnumeratorBase.(PersistentEnumeratorBase.java:143)
at com.intellij.util.io.PersistentBTreeEnumerator.(PersistentBTreeEnumerator.java:96)
at com.intellij.util.io.PersistentEnumerator.createDefaultEnumerator(PersistentEnumerator.java:67)
at com.intellij.util.io.PersistentMapImpl.(PersistentMapImpl.java:136)
at com.intellij.util.io.PersistentMapBuilder.buildImplementation(PersistentMapBuilder.java:62)
at com.intellij.util.io.PersistentMapBuilder.build(PersistentMapBuilder.java:44)
at com.intellij.util.io.PersistentHashMap.(PersistentHashMap.java:39)
at com.intellij.util.io.PersistentHashMap.(PersistentHashMap.java:54)
at org.jetbrains.jps.incremental.storage.AbstractStateStorage.createMap(AbstractStateStorage.java:116)
at org.jetbrains.jps.incremental.storage.AbstractStateStorage.(AbstractStateStorage.java:29)
at org.jetbrains.jps.incremental.storage.FileTimestampStorage.(FileTimestampStorage.java:27)
at org.jetbrains.jps.incremental.storage.ProjectStamps.(ProjectStamps.java:42)
at org.jetbrains.jps.cmdline.BuildRunner.load(BuildRunner.java:102)
at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:324)
at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:175)
at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler.lambda$channelRead0$0(BuildMain.java:218)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
Executing post-compile tasks...
Loading Ant configuration...
Running Ant tasks...
Synchronizing output directories...
2022/10/13, 9:51 AM - Build completed with 1 error and 0 warnings in 1 sec, 582 ms 3. 编译本地加载太多资源，GC 消耗时间太多，导致内存溢出
Executing pre-compile tasks...
Loading Ant configuration...
Running Ant tasks...
build: Project rebuild forced: Storage version updated, file = /Users/zxguan/Library/Caches/JetBrains/IntelliJIdea2022.1/compile-server/springcloud2_9578806c/timestamps/data
Cleaning output directories…
Running 'before' tasks
Checking sources
Copying resources... [user]
Parsing java… [user]
java: JPS incremental annotation processing is disabled. Compilation results on partial recompilation may be inaccurate. Use build process "jps.track.ap.dependencies" VM flag to enable/disable incremental annotation processing environment.
java: java.lang.OutOfMemoryError: GC overhead limit exceeded
java: java.lang.OutOfMemoryError: GC overhead limit exceeded
Checking dependencies… [user]4. 编译本地加载太多资源，GC 消耗时间太多，导致内存溢出，编译报错
Executing pre-compile tasks...
Loading Ant configuration...
Running Ant tasks...
Running 'before' tasks
Checking sources
Copying resources... [user]
Parsing java… [user]
java: JPS incremental annotation processing is disabled. Compilation results on partial recompilation may be inaccurate. Use build process "jps.track.ap.dependencies" VM flag to enable/disable incremental annotation processing environment.
java: 系统资源不足。
java: 有关详细信息，请参阅以下堆栈跟踪。
java: java.lang.OutOfMemoryError: GC overhead limit exceeded
java: at com.sun.tools.javac.util.List.of(List.java:135)
java: at com.sun.tools.javac.util.List.append(List.java:272)
java: at com.sun.tools.javac.comp.Resolve$MethodResolutionContext.addApplicableCandidate(Resolve.java:4338)
java: at ......
java: at ......
java: Compilation failed: internal java compiler error
Checking dependencies… [user]
Dependency analysis found 0 affected files
Errors occurred while compiling module 'user'
javac 1.8.0_333 was used to compile java sources
Finished, saving caches…
Executing post-compile tasks...
Loading Ant configuration...
Running Ant tasks...
Synchronizing output directories...
2022/10/13, 9:55 AM - Build completed with 2 errors and 1 warning in 12 sec, 377 ms5. 编译本地加载太多资源，堆内存不够用
Executing pre-compile tasks...
Loading Ant configuration...
Running Ant tasks...
Running 'before' tasks
Checking sources
Copying resources... [user]
Parsing java… [user]
java: JPS incremental annotation processing is disabled. Compilation results on partial recompilation may be inaccurate. Use build process "jps.track.ap.dependencies" VM flag to enable/disable incremental annotation processing environment.
java: java.lang.OutOfMemoryError: Java heap space
java: java.lang.OutOfMemoryError: Java heap space
Checking dependencies… [user]
Dependency analysis found 0 affected files
Errors occurred while compiling module 'user'
javac 1.8.0_333 was used to compile java sources
Finished, saving caches…
Executing post-compile tasks...
Loading Ant configuration...
Running Ant tasks...
Synchronizing output directories...
2022/10/13, 9:55 AM - Build completed with 2 errors and 1 warning in 12 sec, 377 ms6.
Executing pre-compile tasks...
Loading Ant configuration...
Running Ant tasks...
Running 'before' tasks
Checking sources
Copying resources... [user]
Parsing java… [user]
java: JPS incremental annotation processing is disabled. Compilation results on partial recompilation may be inaccurate. Use build process "jps.track.ap.dependencies" VM flag to enable/disable incremental annotation processing environment.
java: 系统资源不足。
java: 有关详细信息，请参阅以下堆栈跟踪。
java: at ......
java: at ......
java:java.lang.OutOfMemoryError: insufficient memory
Checking dependencies… [user]
Dependency analysis found 0 affected files
Errors occurred while compiling module 'user'
javac 1.8.0_333 was used to compile java sources
Finished, saving caches…
Executing post-compile tasks...
Loading Ant configuration...
Running Ant tasks...
Synchronizing output directories...
2022/10/13, 9:55 AM - Build completed with 2 errors and 1 warning in 12 sec, 377 ms解决方案：调大 IDEA 编译内存大小，File -> Settings -> Build, Execution, Deployment -> Compiler -> Shared build process heap size