Outofmemoryerror Java Heap Space

One common indication of a memory leak is the java lang outofmemoryerror exception.

Outofmemoryerror java heap space. Permgen space though both of them occur because jvm ran out of memory they are quite different from each other and their solutions are independent of each other. To make things more complex java memory is separated into two different regions. Stack overflow for teams is a private secure spot for you and your coworkers to find and share information.

Xms size to set initial java heap size e g. When it occurs you basically have 2 options. Xms1024m setting 1gb xmx size to set maximum java heap size e g.

There are two jvm options which is particularly important to java lang outofmemoryerror. This error arises due to the applications that make excessive use of finalizers. This limit is specified during application startup.

If you get an outofmemoryerror with the message java heap space not to be confused with message permgen space it simply means the jvm ran out of memory. In this case the garbage collector cannot make space available to accommodate a new object and the heap cannot be expanded further. Java applications are only allowed to use a limited amount of memory.

With the xmx jvm argument you can set the heap size. If a class has a finalize method then objects of that type do not have their space reclaimed at garbage collection time. Instead after garbage collection the objects are queued for finalization which occurs at a later time.

Usually this error is thrown when there is insufficient space to allocate an object in the java heap. Allow the jvm to use more memory. Java heap space the java lang outofmemoryerror.