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Build: NetBeans IDE 8.1 (Build 201510222201) VM: OpenJDK 64-Bit Server VM, 25.91-b14, OpenJDK Runtime Environment, 1.8.0_91-b14 OS: Linux User Comments: GUEST: it was scanning for external changes and hung and locked hard spinning a single core to 100%. had to be killed externally to exit. Seems to be more common after adding the html/js plugins to my existing c/c++ install Stacktrace: java.lang.OutOfMemoryError: Java heap space at org.netbeans.modules.cnd.modelimpl.csm.core.FileBufferFile.doGetChar(FileBufferFile.java:165) at org.netbeans.modules.cnd.modelimpl.csm.core.FileBufferFile.getCharBuffer(FileBufferFile.java:234) at org.netbeans.modules.cnd.apt.impl.support.APTDriverImpl$APTSyncCreator.getTokenStream(APTDriverImpl.java:131) at org.netbeans.modules.cnd.apt.impl.support.APTDriverImpl$APTSyncCreator.findAPT(APTDriverImpl.java:153) at org.netbeans.modules.cnd.apt.impl.support.APTDriverImpl.findAPT(APTDriverImpl.java:100) at org.netbeans.modules.cnd.apt.support.APTDriver.findAPTLight(APTDriver.java:110)
Created attachment 162030 [details] stacktrace
You have big codebase, but -Xmx1024m is used. Try 1500m or 2G instead. http://wiki.netbeans.org/FaqSettingHeapSize Thanks.