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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"memory error: java.lang.NullPointerException","articleBody":"Hi, I use BridJ in my projects. using the default java vm arguments, it will show such exceptions messages in c++ kind callback. if I change -Xms512m -Xmx1024m, it will work somewhile and show messages again. I guess the native memory is not enough? How can I do ? \r\n\r\nI use the bridJ In tomcat 7.0  and centos\r\n\r\nis this error ok?\r\n\r\nJava HotSpot(TM) 64-Bit Server VM warning: You have loaded library /root/apache-tomcat-7.0.77/temp/BridJExtractedLibraries5614566201250442255/libbridj.so which might have disabled stack guard. The VM will try to fix the stack guard now.\r\nIt's highly recommended that you fix the library with 'execstack -c \u003clibfile\u003e', or link it with '-z noexecstack'.\r\n","author":{"url":"https://github.com/loneystar1983","@type":"Person","name":"loneystar1983"},"datePublished":"2017-04-28T04:48:52.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/577/nativelibs4java/issues/577"}