OutOfMemory Exception when using robolectric >= 4.10 with mockito

[HeineCat]

Description

Robolectric occurs OutOfMemory exception when mocking InputStream for drawable creation:
Drawable.createFromStream(inputStream, null);

Steps to Reproduce

• mock InputStream and use it to create Drawable: Drawable.createFromStream(inputStream, null);

Robolectric & Android Version

• robolectric >= 4.10.0 (works with version 4.9)

Link to a public git repo demonstrating the problem:

https://github.com/HeineCat/Example_OutOfMemoryException_Robolectric

[hoisie]

This is kind of a funny issue. There is not much that Robolectric is doing to contribute to this issue, it is more of an issue for Java's ImageIO library.

A mock InputStream is tricking the Java ImageIO helpers into spinning forever, most likely becuase calling read will just return '0' for bytes read.

Overall, if you use Android graphics libraries that read iamges , I would recommend using real graphical data.

Here is the stack trace I am seeing:

	at java.base@22/java.lang.StackTraceElement.initStackTraceElements(Native Method)
	at java.base@22/java.lang.StackTraceElement.of(StackTraceElement.java:563)
	at java.base@22/java.lang.Throwable.getOurStackTrace(Throwable.java:883)
	-  locked java.lang.Throwable@442abea6
	at java.base@22/java.lang.Throwable.getStackTrace(Throwable.java:875)
	at org.mockito.internal.exceptions.stacktrace.StackTraceFilter.filterFirst(StackTraceFilter.java:109)
	at org.mockito.internal.debugging.Java8LocationImpl.computeStackTraceInformation(Java8LocationImpl.java:42)
	at org.mockito.internal.debugging.Java8LocationImpl.<init>(Java8LocationImpl.java:27)
	at org.mockito.internal.debugging.Java8LocationImpl.<init>(Java8LocationImpl.java:22)
	at org.mockito.internal.debugging.LocationFactory$Java8LocationFactory.create(LocationFactory.java:33)
	at org.mockito.internal.debugging.LocationFactory.create(LocationFactory.java:19)
	at org.mockito.internal.debugging.LocationFactory.create(LocationFactory.java:15)
	at org.mockito.internal.creation.bytebuddy.MockMethodInterceptor.doIntercept(MockMethodInterceptor.java:56)
	at org.mockito.internal.creation.bytebuddy.MockMethodInterceptor$DispatcherDefaultingToRealMethod.interceptSuperCallable(MockMethodInterceptor.java:145)
	at org.mockito.codegen.InputStream$MockitoMock$s4yVa6eU.read(Unknown Source)
	at java.desktop@22/javax.imageio.stream.MemoryCache.loadFromStream(MemoryCache.java:115)
	at java.desktop@22/javax.imageio.stream.MemoryCacheImageInputStream.read(MemoryCacheImageInputStream.java:110)
	at java.desktop@22/com.sun.imageio.plugins.common.ReaderUtil.tryReadFully(ReaderUtil.java:277)
	at java.desktop@22/com.sun.imageio.plugins.tiff.TIFFImageReaderSpi.canDecodeInput(TIFFImageReaderSpi.java:71)
	at java.desktop@22/javax.imageio.ImageIO$CanDecodeInputFilter.filter(ImageIO.java:571)
	at java.desktop@22/javax.imageio.spi.FilterIterator.advance(ServiceRegistry.java:868)
	at java.desktop@22/javax.imageio.spi.FilterIterator.<init>(ServiceRegistry.java:862)
	at java.desktop@22/javax.imageio.spi.ServiceRegistry.getServiceProviders(ServiceRegistry.java:515)
	at java.desktop@22/javax.imageio.ImageIO.getImageReaders(ImageIO.java:652)
	at org.robolectric.shadows.ImageUtil.getImageInfoFromStream(ImageUtil.java:70)
	at org.robolectric.shadows.ShadowImageDecoder$ImgStream.<init>(ShadowImageDecoder.java:49)
	at org.robolectric.shadows.ShadowImageDecoder$1.<init>(ShadowImageDecoder.java:144)
	at org.robolectric.shadows.ShadowImageDecoder.ImageDecoder_nCreateInputStream(ShadowImageDecoder.java:144)
	at org.robolectric.shadows.ShadowImageDecoder.nCreate(ShadowImageDecoder.java:321)
	at java.base@22/java.lang.invoke.LambdaForm$DMH/0x00007fb1434e8000.invokeStaticInit(LambdaForm$DMH)
	at java.base@22/java.lang.invoke.LambdaForm$MH/0x00007fb1434e9400.guardWithCatch(LambdaForm$MH)
	at java.base@22/java.lang.invoke.LambdaForm$MH/0x00007fb1434ea800.reinvoke(LambdaForm$MH)
	at java.base@22/java.lang.invoke.LambdaForm$MH/0x00007fb1434eac00.guard(LambdaForm$MH)
	at java.base@22/java.lang.invoke.LambdaForm$MH/0x00007fb1434eb000.linkToCallSite(LambdaForm$MH)
	at android.graphics.ImageDecoder.nCreate(ImageDecoder.java)
	```