Tag Archives: java-lang-error

How to fix java.lang.OutOfMemoryError ?

Posted by on January 10, 2012 No comments

Please follow below 3 steps to eliminate the Out of Memory errors.

  1. Check JVM Heap size settings
  2. Clear up javadump files
  3. Check the free space in System

Caused by: java.lang.OutOfMemoryError at java.io.ObjectInputStream$HandleTable$HandleList.<strong>(<span data-scayt_word="ObjectInputStream.java" data-scaytid="153">ObjectInputStream.java</span>:3399) </strong>at <span style="font-size: 10px;"><span data-scayt_word="java.io.ObjectInputStream" data-scaytid="150"><span _fck_bookmark="1" id="cke_bm_925S" style="display: none;"> </span><span _fck_bookmark="1" id="cke_bm_910S" style="display: none;"> </span>java.io.ObjectInputStream</span>$<span data-scayt_word="HandleTable.markDependency" data-scaytid="174">HandleTable.markDependency</span>(<span data-scayt_word="ObjectInputStream.java" data-scaytid="154">ObjectInputStream.java</span>:3224) at <span data-scayt_word="java.io.ObjectInputStream.defaultReadFields" data-scaytid="175">java.io.ObjectInputStream.defaultReadFields</span>(<span data-scayt_word="ObjectInputStream.java" data-scaytid="155">ObjectInputStream.java</span>:1929) at <span data-scayt_word="java.io.ObjectInputStream.readSerialData" data-scaytid="178">java.io.ObjectInputStream.readSerialData</span>(<span data-scayt_word="ObjectInputStream.java" data-scaytid="156">ObjectInputStream.java</span>:1851) at <span data-scayt_word="java.io.ObjectInputStream.readOrdinaryObject" data-scaytid="181">java.io.ObjectInputStream.readOrdinaryObject</span>(<span data-scayt_word="ObjectInputStream.java" data-scaytid="157">ObjectInputStream.java</span>:1728) at <span data-scayt_word="java.io.ObjectInputStream.readObject0" data-scaytid="184">java.io.ObjectInputStream.readObject0</span>(<span data-scayt_word="ObjectInputStream.java" data-scaytid="158">ObjectInputStream.java</span>:1314) at <span data-scayt_word="java.io.ObjectInputStream.readArray" data-scaytid="190">java.io.ObjectInputStream.readArray</span>(<span data-scayt_word="ObjectInputStream.java" data-scaytid="159">ObjectInputStream.java</span>:1643) at <span data-scayt_word="java.io.ObjectInputStream.readObject0" data-scaytid="185">java.io.ObjectInputStream.readObject0</span>(<span data-scayt_word="ObjectInputStream.java" data-scaytid="160">ObjectInputStream.java</span>:1308) at <span data-scayt_word="java.io.ObjectInputStream.defaultReadFields" data-scaytid="176">java.io.ObjectInputStream.defaultReadFields</span>(<span data-scayt_word="ObjectInputStream.java" data-scaytid="161">ObjectInputStream.java</span>:1927) at <span data-scayt_word="java.io.ObjectInputStream.readSerialData" data-scaytid="179">java.io.ObjectInputStream.readSerialData</span>(<span data-scayt_word="ObjectInputStream.java" data-scaytid="162">ObjectInputStream.java</span>:1851) at <span data-scayt_word="java.io.ObjectInputStream.readOrdinaryObject" data-scaytid="182">java.io.ObjectInputStream.readOrdinaryObject</span>(<span data-scayt_word="ObjectInputStream.java" data-scaytid="163">ObjectInputStream.java</span>:1728) at </span>

Check JVM Heap size

  1. Open the WebSphere Application Server administration site by typing http://hostname:port/ibm/console. The port is the number of the HTTP administrative port, which is 9060 by default.
  2. Select Servers > Application servers > server1 > Java and Process Management > Process Definition > Java Virtual Machine
  3. Increase the JVM Heap size as shown in the following figure

Clear up java dump files

Clear any heapdump, javacore files in your WAS profile directory as shown below screenshot

Also, You can clear up ffdc logs in the location C:\Apps\IBM\<span data-scayt_word="SDP70" data-scaytid="201">SDP70</span>\runtimes\<span data-scayt_word="base_v61" data-scaytid="202">base_v61</span>\profiles\<span data-scayt_word="myprofile01" data-scaytid="203">myprofile01</span>\logs\<span data-scayt_word="ffdc" data-scaytid="200">ffdc</span>

Check the free space in System

Make sure you have enough free space in your machine. You can make use of Disk clean up utility in Windows machine to clear up and compress the unused files in your system.

Personally, I managed to get about 9GB free space in my system just doing Disk clean up.

***To be a techy, do read more books !!!!


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