Java Errors
JVM crashes, memory issues, class loading failures, and runtime exceptions that stop Minecraft from running.
38 errors in this category
How to Fix java.lang.OutOfMemoryError
java.lang.OutOfMemoryError: Java heap space
How to Fix OutOfMemoryError: GC Overhead Limit Exceeded
java.lang.OutOfMemoryError: GC overhead limit exceeded
How to Fix OutOfMemoryError: Metaspace
java.lang.OutOfMemoryError: Metaspace
How to Fix java.lang.StackOverflowError
java.lang.StackOverflowError
How to Fix java.lang.NullPointerException
java.lang.NullPointerException
How to Fix java.lang.ClassCastException
java.lang.ClassCastException: class X cannot be cast to class Y
How to Fix java.lang.NoClassDefFoundError
java.lang.NoClassDefFoundError: com/example/SomeClass
How to Fix java.lang.ClassNotFoundException
java.lang.ClassNotFoundException: com.example.SomeClass
How to Fix UnsupportedClassVersionError
java.lang.UnsupportedClassVersionError: has been compiled by a more recent version of the Java Runtime
How to Fix java.lang.IllegalStateException
java.lang.IllegalStateException
How to Fix java.lang.IllegalArgumentException
java.lang.IllegalArgumentException
How to Fix IncompatibleClassChangeError
java.lang.IncompatibleClassChangeError
How to Fix java.lang.VerifyError
java.lang.VerifyError: Bad type on operand stack
How to Fix java.lang.AbstractMethodError
java.lang.AbstractMethodError
How to Fix java.lang.NoSuchMethodError
java.lang.NoSuchMethodError
How to Fix java.lang.NoSuchFieldError
java.lang.NoSuchFieldError
How to Fix java.lang.LinkageError
java.lang.LinkageError: loader constraint violation
How to Fix java.io.IOException: Stream Closed
java.io.IOException: Stream closed
How to Fix ExceptionInInitializerError
java.lang.ExceptionInInitializerError
How to Fix ConcurrentModificationException
java.util.ConcurrentModificationException
How to Fix ArrayIndexOutOfBoundsException
java.lang.ArrayIndexOutOfBoundsException
How to Fix NumberFormatException
java.lang.NumberFormatException: For input string
How to Fix java.lang.SecurityException
java.lang.SecurityException: Invalid signature file digest
How to Fix java.io.EOFException
java.io.EOFException
How to Fix java.net.UnknownHostException
java.net.UnknownHostException: Unable to resolve host
How to Fix java.lang.RuntimeException
java.lang.RuntimeException
How to Fix Error: Maximum Lock Count Exceeded
java.lang.Error: Maximum lock count exceeded
How to Fix Java Version Not Found
Error: Could not find or load main class
How to Fix Java Heap Space on Servers
java.lang.OutOfMemoryError: Java heap space (Server)
How to Fix UnsatisfiedLinkError
java.lang.UnsatisfiedLinkError: no lwjgl in java.library.path
How to Fix java.net.SocketException
java.net.SocketException: Connection reset
How to Fix Minecraft Ran Out of Memory
Minecraft has run out of memory
How to Fix NoClassDefFoundError: LWJGL
java.lang.NoClassDefFoundError: org/lwjgl/opengl/GL
How to Fix OutOfMemoryError: Direct Buffer Memory
java.lang.OutOfMemoryError: Direct buffer memory
How to Fix IndexOutOfBoundsException
java.lang.IndexOutOfBoundsException
How to Fix java.lang.InternalError
java.lang.InternalError: a fault occurred in a recent unsafe memory access operation
How to Fix InvocationTargetException
java.lang.reflect.InvocationTargetException
How to Fix ZipException: Invalid LOC Header
java.util.zip.ZipException: invalid LOC header (bad signature)