1 public class BaseTest {
2     public static void main(String[] args) throws Exception{
3         ArrayList list=new ArrayList();
4         while(true){
5             list.add(new FinalBean());
6         }
7     }
8 }

1 java.lang.OutOfMemoryError: GC overhead limit exceeded
2 Dumping heap to java_pid1288.hprof ...
3 Heap dump file created [34835053 bytes in 0.247 secs]
4 Exception in thread "main" java.lang.OutOfMemoryError: GC overhead limit exceeded
5     at java.util.Arrays.copyOf(Arrays.java:3332)
6     at java.lang.String.concat(String.java:2032)
7     at com.cz.smart.center.FinalBean.<init>(FinalBean.java:13)
8     at com.cz.smart.center.BaseTest.main(BaseTest.java:14)

public class BaseTest {int i = 0;public static void main(String[] args) throws Exception{BaseTest b = new BaseTest();b.addStackLength();}public void addStackLength(){i++;        System.out.println(i);addStackLength();}
}

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Exception in thread "main" java.lang.StackOverflowErrorat sun.nio.cs.UTF_8.updatePositions(UTF_8.java:77)at sun.nio.cs.UTF_8.access$200(UTF_8.java:57)at sun.nio.cs.UTF_8$Encoder.encodeArrayLoop(UTF_8.java:636)at sun.nio.cs.UTF_8$Encoder.encodeLoop(UTF_8.java:691)at java.nio.charset.CharsetEncoder.encode(CharsetEncoder.java:579)at sun.nio.cs.StreamEncoder.implWrite(StreamEncoder.java:271)at sun.nio.cs.StreamEncoder.write(StreamEncoder.java:125)at java.io.OutputStreamWriter.write(OutputStreamWriter.java:207)at java.io.BufferedWriter.flushBuffer(BufferedWriter.java:129)at java.io.PrintStream.write(PrintStream.java:526)at java.io.PrintStream.print(PrintStream.java:597)at java.io.PrintStream.println(PrintStream.java:736)