##java大对象类
public class MiBigObject {private String f1;private String f2;private String f3;private String f4;private String f5;private String f6;private String f7;private String f8;private String f9;private String f10;private String f11;private String f12;private String f13;private String f14;private String f15;private String f16;private String f17;private String f18;private String f19;private String f20;private Integer i21;private Integer i22;private Integer i23;private Integer i24;private Integer i25;private Integer i26;private Integer i27;private Integer i28;private Integer i29;private Integer i30;private Integer i31;private Integer i32;private Integer i33;private Integer i34;private Integer i35;private Integer i36;private Integer i37;private Integer i38;private Integer i39;private Integer i40;private Long l41;private Long l42;private Long l43;private Long l44;private Long l45;private Long l46;private Long l47;private Long l48;private Long l49;private Long l50;public String getF1() {return f1;}public void setF1(String f1) {this.f1 = f1;}public String getF2() {return f2;}public void setF2(String f2) {this.f2 = f2;}public String getF3() {return f3;}public void setF3(String f3) {this.f3 = f3;}public String getF4() {return f4;}public void setF4(String f4) {this.f4 = f4;}public String getF5() {return f5;}public void setF5(String f5) {this.f5 = f5;}public String getF6() {return f6;}public void setF6(String f6) {this.f6 = f6;}public String getF7() {return f7;}public void setF7(String f7) {this.f7 = f7;}public String getF8() {return f8;}public void setF8(String f8) {this.f8 = f8;}public String getF9() {return f9;}public void setF9(String f9) {this.f9 = f9;}public String getF10() {return f10;}public void setF10(String f10) {this.f10 = f10;}public String getF11() {return f11;}public void setF11(String f11) {this.f11 = f11;}public String getF12() {return f12;}public void setF12(String f12) {this.f12 = f12;}public String getF13() {return f13;}public void setF13(String f13) {this.f13 = f13;}public String getF14() {return f14;}public void setF14(String f14) {this.f14 = f14;}public String getF15() {return f15;}public void setF15(String f15) {this.f15 = f15;}public String getF16() {return f16;}public void setF16(String f16) {this.f16 = f16;}public String getF17() {return f17;}public void setF17(String f17) {this.f17 = f17;}public String getF18() {return f18;}public void setF18(String f18) {this.f18 = f18;}public String getF19() {return f19;}public void setF19(String f19) {this.f19 = f19;}public String getF20() {return f20;}public void setF20(String f20) {this.f20 = f20;}public Integer getI21() {return i21;}public void setI21(Integer i21) {this.i21 = i21;}public Integer getI22() {return i22;}public void setI22(Integer i22) {this.i22 = i22;}public Integer getI23() {return i23;}public void setI23(Integer i23) {this.i23 = i23;}public Integer getI24() {return i24;}public void setI24(Integer i24) {this.i24 = i24;}public Integer getI25() {return i25;}public void setI25(Integer i25) {this.i25 = i25;}public Integer getI26() {return i26;}public void setI26(Integer i26) {this.i26 = i26;}public Integer getI27() {return i27;}public void setI27(Integer i27) {this.i27 = i27;}public Integer getI28() {return i28;}public void setI28(Integer i28) {this.i28 = i28;}public Integer getI29() {return i29;}public void setI29(Integer i29) {this.i29 = i29;}public Integer getI30() {return i30;}public void setI30(Integer i30) {this.i30 = i30;}public Integer getI31() {return i31;}public void setI31(Integer i31) {this.i31 = i31;}public Integer getI32() {return i32;}public void setI32(Integer i32) {this.i32 = i32;}public Integer getI33() {return i33;}public void setI33(Integer i33) {this.i33 = i33;}public Integer getI34() {return i34;}public void setI34(Integer i34) {this.i34 = i34;}public Integer getI35() {return i35;}public void setI35(Integer i35) {this.i35 = i35;}public Integer getI36() {return i36;}public void setI36(Integer i36) {this.i36 = i36;}public Integer getI37() {return i37;}public void setI37(Integer i37) {this.i37 = i37;}public Integer getI38() {return i38;}public void setI38(Integer i38) {this.i38 = i38;}public Integer getI39() {return i39;}public void setI39(Integer i39) {this.i39 = i39;}public Integer getI40() {return i40;}public void setI40(Integer i40) {this.i40 = i40;}public Long getL41() {return l41;}public void setL41(Long l41) {this.l41 = l41;}public Long getL42() {return l42;}public void setL42(Long l42) {this.l42 = l42;}public Long getL43() {return l43;}public void setL43(Long l43) {this.l43 = l43;}public Long getL44() {return l44;}public void setL44(Long l44) {this.l44 = l44;}public Long getL45() {return l45;}public void setL45(Long l45) {this.l45 = l45;}public Long getL46() {return l46;}public void setL46(Long l46) {this.l46 = l46;}public Long getL47() {return l47;}public void setL47(Long l47) {this.l47 = l47;}public Long getL48() {return l48;}public void setL48(Long l48) {this.l48 = l48;}public Long getL49() {return l49;}public void setL49(Long l49) {this.l49 = l49;}public Long getL50() {return l50;}public void setL50(Long l50) {this.l50 = l50;}
}##内存溢出测试代码
import java.util.ArrayList;
import java.util.List;public class OutOfMemoryTest {public static void main(String[] args) {List<MiBigObject> miBigObjects = new ArrayList<>();while(true) {MiBigObject miBigObject = new MiBigObject();miBigObject.setF1("t1");miBigObject.setF2("t2");miBigObject.setF3("t3");miBigObject.setF4("t4");miBigObject.setF5("t5");miBigObject.setF6("t6");miBigObject.setF7("t7");miBigObject.setF8("t8");miBigObject.setF9("t9");miBigObject.setF10("t10");miBigObject.setF11("t11");miBigObject.setF12("t12");miBigObject.setF13("t13");miBigObject.setF14("t14");miBigObject.setF15("t15");miBigObject.setF16("t16");miBigObject.setF17("t17");miBigObject.setF18("t18");miBigObject.setF19("t19");miBigObject.setF20("t20");miBigObject.setI21(1);miBigObject.setI22(2);miBigObject.setI23(3);miBigObject.setI24(4);miBigObject.setI25(5);miBigObject.setI26(6);miBigObject.setI27(7);miBigObject.setI28(8);miBigObject.setI29(9);miBigObject.setI30(10);miBigObject.setI31(11);miBigObject.setI32(12);miBigObject.setI33(13);miBigObject.setI34(14);miBigObject.setI35(15);miBigObject.setI36(16);miBigObject.setI37(17);miBigObject.setI38(18);miBigObject.setI39(19);miBigObject.setI40(20);miBigObject.setL41(21L);miBigObject.setL42(22L);miBigObject.setL43(23L);miBigObject.setL44(24L);miBigObject.setL45(25L);miBigObject.setL46(26L);miBigObject.setL47(27L);miBigObject.setL48(28L);miBigObject.setL49(29L);miBigObject.setL50(30L);miBigObjects.add(miBigObject);}}}##gdb调试内存溢出堆栈
#0 MemAllocator::Allocation::check_out_of_memory (this=0x7ffff7bfe660) at /home/yym/openjdk17/jdk17-master/src/hotspot/share/gc/shared/memAllocator.cpp:126
#1 0x00007ffff677afee in MemAllocator::Allocation::~Allocation (this=0x7ffff7bfe660, __in_chrg=<optimized out>)at /home/yym/openjdk17/jdk17-master/src/hotspot/share/gc/shared/memAllocator.cpp:84
#2 0x00007ffff677a0ab in MemAllocator::allocate (this=0x7ffff7bfe6d0) at /home/yym/openjdk17/jdk17-master/src/hotspot/share/gc/shared/memAllocator.cpp:373
#3 0x00007ffff6351067 in CollectedHeap::obj_allocate (this=0x7ffff00453d0, klass=0x1000c1000, size=27, __the_thread__=0x7ffff0028920)at /home/yym/openjdk17/jdk17-master/src/hotspot/share/gc/shared/collectedHeap.inline.hpp:36
#4 0x00007ffff6344c81 in InstanceKlass::allocate_instance (this=0x1000c1000, __the_thread__=0x7ffff0028920)at /home/yym/openjdk17/jdk17-master/src/hotspot/share/oops/instanceKlass.cpp:1375
#5 0x00007ffff69579f7 in OptoRuntime::new_instance_C (klass=0x1000c1000, current=0x7ffff0028920) at /home/yym/openjdk17/jdk17-master/src/hotspot/share/opto/runtime.cpp:219
#6 0x00007fffe1082145 in ?? ()
#7 0x00000000fdd65108 in ?? ()
#8 0x00007fffe8bdba68 in ?? ()
#9 0x00007fffd9c0e800 in ?? ()
#10 0x00007fffd9c16138 in ?? ()
#11 0x00000000fdd758d8 in ?? ()
#12 0x00007fffd9c0fc50 in ?? ()
#13 0x0000000000000000 in ?? ()##
#0 MemAllocator::Allocation::check_out_of_memory (this=0x7ffff7bfe180) at /home/yym/openjdk17/jdk17-master/src/hotspot/share/gc/shared/memAllocator.cpp:126
#1 0x00007ffff677afee in MemAllocator::Allocation::~Allocation (this=0x7ffff7bfe180, __in_chrg=<optimized out>)at /home/yym/openjdk17/jdk17-master/src/hotspot/share/gc/shared/memAllocator.cpp:84
#2 0x00007ffff677a0ab in MemAllocator::allocate (this=0x7ffff7bfe1f0) at /home/yym/openjdk17/jdk17-master/src/hotspot/share/gc/shared/memAllocator.cpp:373
#3 0x00007ffff6351067 in CollectedHeap::obj_allocate (this=0x7ffff00453d0, klass=0x1000c1000, size=27, __the_thread__=0x7ffff0028920)at /home/yym/openjdk17/jdk17-master/src/hotspot/share/gc/shared/collectedHeap.inline.hpp:36
#4 0x00007ffff6344c81 in InstanceKlass::allocate_instance (this=0x1000c1000, __the_thread__=0x7ffff0028920)at /home/yym/openjdk17/jdk17-master/src/hotspot/share/oops/instanceKlass.cpp:1375
#5 0x00007ffff5eda4f4 in Runtime1::new_instance (current=0x7ffff0028920, klass=0x1000c1000) at /home/yym/openjdk17/jdk17-master/src/hotspot/share/c1/c1_Runtime1.cpp:360
#6 0x00007fffe1085ba7 in ?? ()
#7 0x00007ffff7bfe300 in ?? ()
#8 0x0000000000000000 in ?? ()##check_out_of_memory()方法源码 传送门
openjdk17 jvm byte数组 内存溢出 在C++源码体现-CSDN博客